Updated 3 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,764exploited flaws on CISA’s list

35added in the last 30 days

457new WordPress flaws this week

390,714entries in the database

2,889 results · page 14 of 58

Jun 15, 2026LibreOffice can import documents in the OOXML format (DOCX).CVE-2026-6047 · Other software · The Document Foundation · reported by security@documentfoundation.orgMedium 5.4
LibreOffice can import documents in the OOXML format (DOCX). A heap buffer overflow existed when replaying deferred parser events for a text box element. A handler object was assumed to be of one type and written to at that type's field layout, but it could be a smaller object, so the write landed past the end of the allocation. In fixed versions the type is checked before the write.
Product
LibreOffice
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record libreoffice.org
Jun 15, 2026LibreOffice can import EMF+ graphics, which may be embedded in documents.CVE-2026-6045 · Other software · The Document Foundation · reported by security@documentfoundation.orgMedium 5.4
LibreOffice can import EMF+ graphics, which may be embedded in documents. A heap buffer overflow existed when importing an EMF+ gradient brush. The number of gradient blend points was read from the file and used to compute an allocation size, but that multiplication could overflow, so a small buffer was allocated and then filled as if it were large, writing past its end. In fixed versions the blend-point count is checked against the data actually available before allocating.
Product
LibreOffice
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record libreoffice.org
Jun 15, 2026A heap use-after-free existed when importing the blank-width characters of an ODF number format.CVE-2026-6040 · Other software · The Document Foundation · reported by security@documentfoundation.orgMedium 5.4
A heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the document was not checked against the length of the format-code string, so a malformed number format could be processed against memory outside that string. In fixed versions the position is bounds-checked before use.
Product
LibreOffice
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record libreoffice.org access.redhat.com
Jun 15, 2026LibreOffice can import drawings in the DXF format used by CAD software.CVE-2026-6039 · Other software · The Document Foundation · reported by security@documentfoundation.orgMedium 5.4
LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a DXF polyline. The point count taken from the file was truncated to a 16-bit value when the point buffer was sized, while the full count was used to fill it, so a polyline whose point count exceeded the 16-bit range was written past the end of the buffer. In fixed versions such oversized polylines are rejected.
Product
LibreOffice
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record libreoffice.org
Jun 12, 2026Stack overflow vulnerability in Avast Antivirus when scanning a malformed Office Open XML file may allow Denial-of-Service of the antivirus process.CVE-2025-7019 · Other software · Gen Digital · reported by security@nortonlifelock.comMedium 5.5
Stack overflow vulnerability in Avast Antivirus when scanning a malformed Office Open XML file may allow Denial-of-Service of the antivirus process. This issue affects Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One, and Avast Business Antivirus on Windows, macOS, and Linux for virus definition builds before VPS 25020100. The affected scanning logic is delivered through a shared Gen Digital virus definition update stream. The same stream feeds the consumer antivirus products listed in this advisory and other Gen Digital products that embed the same engine. Mitigation flows through this update channel; installations at or above the listed build are not vulnerable regardless of which product consumes the stream.
Product
Avast Antivirus
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record gendigital.com
Jun 9, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-48562 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.CVE-2026-48560 · Email & office · Microsoft · reported by secure@microsoft.comMedium 5.4
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper input validation in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.CVE-2026-47641 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-47640 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform sCVE-2026-47639 · Email & office · Microsoft · reported by secure@microsoft.comMedium 5.4
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-47638 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-47637 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform sCVE-2026-47636 · Email & office · Microsoft · reported by secure@microsoft.comMedium 5.4
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.CVE-2026-47635 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.4
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
Product
Microsoft Office LTSC 2024
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper neutralization of special elements in output used by a downstream component ('injection') in Microsoft Office SharePoint allows an authorized attacker CVE-2026-47634 · Email & office · Microsoft · reported by secure@microsoft.comHigh 7.3
Improper neutralization of special elements in output used by a downstream component ('injection') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Server 2019
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper authorization in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.CVE-2026-47298 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8
Improper authorization in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.CVE-2026-47293 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper access control in Office for Android allows an unauthorized attacker to perform spoofing locally.CVE-2026-45649 · Email & office · Microsoft · reported by secure@microsoft.comHigh 7.1
Improper access control in Office for Android allows an unauthorized attacker to perform spoofing locally.
Product
Microsoft Excel for Android
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally.CVE-2026-45645 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.CVE-2026-45643 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.CVE-2026-45486 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.CVE-2026-45485 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comLow 3.3
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.CVE-2026-45484 · Email & office · Microsoft · reported by secure@microsoft.comHigh 8.8
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office Project Server allows an authorized attacker to performCVE-2026-45483 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office Project Server allows an authorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-45481 · Email & office · Microsoft · reported by secure@microsoft.comHigh 7.3
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-45479 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.CVE-2026-45475 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.CVE-2026-45474 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.4
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.CVE-2026-45472 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.4
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.CVE-2026-45471 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-45469 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-45468 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-45467 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to disclose information locally.CVE-2026-45466 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comLow 3.3
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform sCVE-2026-45465 · Email & office · Microsoft · reported by secure@microsoft.comMedium 5.4
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform sCVE-2026-45464 · Email & office · Microsoft · reported by secure@microsoft.comMedium 5.4
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Integer underflow (wrap or wraparound) in Microsoft Office allows an unauthorized attacker to execute code locally.CVE-2026-45463 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.4
Integer underflow (wrap or wraparound) in Microsoft Office allows an unauthorized attacker to execute code locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoCVE-2026-45462 · Email & office · Microsoft · reported by secure@microsoft.comMedium 4.6
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.CVE-2026-45461 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.4
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information locally.CVE-2026-45460 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 4.7
Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Protection mechanism failure in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.CVE-2026-45459 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comLow 3.3
Protection mechanism failure in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.CVE-2026-45458 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.4
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally.CVE-2026-45457 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.CVE-2026-45456 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.4
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.CVE-2026-45455 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comLow 3.3
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code overCVE-2026-45454 · Email & office · Microsoft · reported by secure@microsoft.comMedium 6.5
Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform sCVE-2026-45453 · Email & office · Microsoft · reported by secure@microsoft.comMedium 5.4
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Product
Microsoft SharePoint Enterprise Server 2016
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.CVE-2026-44824 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.CVE-2026-44823 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com
Jun 9, 2026Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.CVE-2026-44822 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.2
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
Product
Microsoft 365 Apps for Enterprise
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record msrc.microsoft.com

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

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