Critical security advisoryCriticalFlagged by our vulnerability database: PHP2Shell is on CISA’s exploited list. Most WordPress hosting runs PHP. See if your site is affectedFlagged by our vulnerability database: PHP2Shell is being exploited. DetailsExploited: PHP2Shell. Check your site
HuttenlocherTechnologies
Updated 2 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.

1,762exploited flaws on CISA’s list
34added in the last 30 days
344new WordPress flaws this week
390,080entries in the database

7 results

  • Feb 6, 2026AbsoluteTelnet 11.12 contains a denial of service vulnerability in the SSH2 username input field that allows local attackers to crash the application.CVE-2020-37166 · Other software · Celestial Software · reported by VulnCheckMedium 6.9

    AbsoluteTelnet 11.12 contains a denial of service vulnerability in the SSH2 username input field that allows local attackers to crash the application. Attackers can overwrite the username field with a 1000-byte buffer, causing the application to become unresponsive and terminate.

    Product
    AbsoluteTelnet
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 6, 2026AbsoluteTelnet 11.12 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an oversized license name.CVE-2020-37165 · Other software · Celestial Software · reported by VulnCheckMedium 6.7

    AbsoluteTelnet 11.12 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an oversized license name. Attackers can generate a 2500-character payload and paste it into the license name field to trigger an application crash.

    Product
    AbsoluteTelnet
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 6, 2026AbsoluteTelnet 11.12 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an oversized license name.CVE-2020-37164 · Other software · Celestial Software · reported by VulnCheckMedium 6.7

    AbsoluteTelnet 11.12 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an oversized license name. Attackers can generate a 2500-character payload and paste it into the license entry field to trigger an application crash.

    Product
    AbsoluteTelnet
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 15, 2026AbsoluteTelnet 11.24 contains a denial of service vulnerability that allows local attackers to crash the application by manipulating username and error report fCVE-2021-47765 · Other software · Celestialsoftware · reported by VulnCheckMedium 6.7

    AbsoluteTelnet 11.24 contains a denial of service vulnerability that allows local attackers to crash the application by manipulating username and error report fields. Attackers can trigger the crash by inserting 1000 characters into the username or email address fields, causing the application to become unresponsive.

    Product
    AbsoluteTelnet
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 15, 2026AbsoluteTelnet 11.24 contains a denial of service vulnerability that allows local attackers to crash the application by manipulating DialUp connection and licenCVE-2021-47764 · Other software · Celestialsoftware · reported by VulnCheckMedium 6.7

    AbsoluteTelnet 11.24 contains a denial of service vulnerability that allows local attackers to crash the application by manipulating DialUp connection and license name fields. Attackers can generate a 1000-character payload and paste it into specific input fields to trigger application crashes and force unexpected termination.

    Product
    AbsoluteTelnet
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 19, 2003AbsoluteTelnet SSH2 client does not clear logon credentials from memory, including plaintext passwords, which could allow attackers with access to memory to steCVE-2003-0046 · Other software · Celestial Software · reported by MITREMedium 4.6

    AbsoluteTelnet SSH2 client does not clear logon credentials from memory, including plaintext passwords, which could allow attackers with access to memory to steal the SSH credentials.

    Product
    Absolutetelnet
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 6, 2003Buffer overflow in AbsoluteTelnet before 2.12 RC10 allows remote attackers to execute arbitrary code via a long window title.CVE-2003-1090 · Other software · Celestial Software · reported by MITREHigh 10

    Buffer overflow in AbsoluteTelnet before 2.12 RC10 allows remote attackers to execute arbitrary code via a long window title.

    Product
    Absolutetelnet
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.

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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