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.
8 results
May 1, 2026An attachment spoofing issue in WhatsApp for Windows prior to v2.3000.1032164386.258709 could have allowed maliciously formatted documents with embedded NUL bytCVE-2026-23863 · Other software · Facebook · reported by cve-assign@fb.comMedium 6.5
An attachment spoofing issue in WhatsApp for Windows prior to v2.3000.1032164386.258709 could have allowed maliciously formatted documents with embedded NUL bytes in the filename to be shown in the application as one type of file but run as an executable when opened. We have not seen evidence of exploitation in the wild.
- Product
- WhatsApp Desktop for Windows
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordfacebook.comwhatsapp.com
Apr 5, 2025A spoofing issue in WhatsApp for Windows prior to version 2.2450.6 displayed attachments according to their MIME type but selected the file opening handler baseCVE-2025-30401 · Other software · Facebook · reported by cve-assign@fb.comMedium 6.7
A spoofing issue in WhatsApp for Windows prior to version 2.2450.6 displayed attachments according to their MIME type but selected the file opening handler based on the attachment’s filename extension. A maliciously crafted mismatch could have caused the recipient to inadvertently execute arbitrary code rather than view the attachment when manually opening the attachment inside WhatsApp. We have not seen evidence of exploitation in the wild.
- Product
- WhatsApp Desktop for Windows
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordfacebook.comwhatsapp.com
Oct 4, 2023A race condition in an event subsystem led to a heap use-after-free issue in established audio/video calls that could have resulted in app termination or unexpeCVE-2023-38538 · Other software · Facebook · reported by cve-assign@fb.comMedium 5
A race condition in an event subsystem led to a heap use-after-free issue in established audio/video calls that could have resulted in app termination or unexpected control flow with very low probability.
- Product
- WhatsApp Desktop for Mac
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordwhatsapp.comwhatsapp.com
Oct 4, 2023A race condition in a network transport subsystem led to a heap use-after-free issue in established or unsilenced incoming audio/video calls that could have resCVE-2023-38537 · Other software · Facebook · reported by cve-assign@fb.comMedium 5.6
A race condition in a network transport subsystem led to a heap use-after-free issue in established or unsilenced incoming audio/video calls that could have resulted in app termination or unexpected control flow with very low probability.
- Product
- WhatsApp Desktop for Mac
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordwhatsapp.comwhatsapp.com
Jan 4, 2022The calling logic for WhatsApp for Android prior to v2.21.23, WhatsApp Business for Android prior to v2.21.23, WhatsApp for iOS prior to v2.21.230, WhatsApp BusCVE-2021-24042 · Other software · Facebook · reported by cve-assign@fb.comCritical 9.8
The calling logic for WhatsApp for Android prior to v2.21.23, WhatsApp Business for Android prior to v2.21.23, WhatsApp for iOS prior to v2.21.230, WhatsApp Business for iOS prior to v2.21.230, WhatsApp for KaiOS prior to v2.2143, WhatsApp Desktop prior to v2.2146 could have allowed an out-of-bounds write if a user makes a 1:1 call to a malicious actor.
- Product
- WhatsApp Desktop
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordwhatsapp.comwhatsapp.com
Sep 3, 2020A security feature bypass issue in WhatsApp Desktop versions prior to v0.3.4932 could have allowed for sandbox escape in Electron and escalation of privilege ifCVE-2020-1889 · Other software · Facebook · reported by cve-assign@fb.comCritical 10
A security feature bypass issue in WhatsApp Desktop versions prior to v0.3.4932 could have allowed for sandbox escape in Electron and escalation of privilege if combined with a remote code execution vulnerability inside the sandboxed renderer process.
- Product
- WhatsApp Desktop
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordwhatsapp.comwhatsapp.com
Sep 3, 2020An input validation issue in WhatsApp Desktop versions prior to v0.3.4932 could have allowed cross-site scripting upon clicking on a link from a specially craftCVE-2019-11928 · Other software · Facebook · reported by cve-assign@fb.comMedium 6.1
An input validation issue in WhatsApp Desktop versions prior to v0.3.4932 could have allowed cross-site scripting upon clicking on a link from a specially crafted live location message.
- Product
- WhatsApp Desktop
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordwhatsapp.comwhatsapp.com
Jul 16, 2019An input validation issue affected WhatsApp Desktop versions prior to 0.3.3793 which allows malicious clients to send files to users that would be displayed witCVE-2019-3571 · Other software · Facebook · reported by cve-assign@fb.comMedium 5.3
An input validation issue affected WhatsApp Desktop versions prior to 0.3.3793 which allows malicious clients to send files to users that would be displayed with a wrong extension.
- Product
- WhatsApp Desktop
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordfacebook.comfacebook.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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