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 4 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.

1,766exploited flaws on CISA’s list
36added in the last 30 days
587new WordPress flaws this week
391,288entries in the database

5 results

  • Jun 24, 2025A flaw was found in the libssh library in versions less than 0.11.2.CVE-2025-5318 · Other software · Red Hat · reported by Red HatMedium 5.4

    A flaw was found in the libssh library in versions less than 0.11.2. An out-of-bounds read can be triggered in the sftp_handle function due to an incorrect comparison check that permits the function to access memory beyond the valid handle list and to return an invalid pointer, which is used in further processing. This vulnerability allows an authenticated remote attacker to potentially read unintended memory regions, exposing sensitive information or affect service behavior.

    Product
    Red Hat Enterprise Linux 10
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 8, 2024The /n software IPWorks SSH library SFTPServer component can be induced to make unintended filesystem or network path requests when loading a SSH public key or CVE-2024-6580 · Other software · /n software · reported by 9119a7d8-5eab-497f-8521-727c672e3725Low 2.3

    The /n software IPWorks SSH library SFTPServer component can be induced to make unintended filesystem or network path requests when loading a SSH public key or certificate. To be exploitable, an application calling the SFTPServer component must grant user access without verifying the SSH public key or certificate (which would most likely be a separate vulnerability in the calling application). IPWorks SSH versions 22.0.8945 and 24.0.8945 were released to address this condition by blocking all filesystem and network path requests for SSH public keys or certificates.

    Product
    IPWorks SSH SFTPServer
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 4, 2017The Go SSH library (x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks.CVE-2017-3204 · Other software · Go · reported by cret@cert.orgHigh 8.1

    The Go SSH library (x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks. Default behavior changed in commit e4e2799 to require explicitly registering a hostkey verification mechanism.

    Product
    SSH library
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 31, 2011The random number generator in the Crypto application before 2.0.2.2, and SSH before 2.0.5, as used in the Erlang/OTP ssh library before R14B03, uses predictablCVE-2011-0766 · Other software · Erlang · reported by cret@cert.orgHigh 7.8

    The random number generator in the Crypto application before 2.0.2.2, and SSH before 2.0.5, as used in the Erlang/OTP ssh library before R14B03, uses predictable seeds based on the current time, which makes it easier for remote attackers to guess DSA host and SSH session keys.

    Product
    Crypto
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 23, 2007Buffer overflow in the Ne7sshSftp::addOpenHandle function in ne7ssh_sftp.cpp in NetSieben SSH Library (ne7ssh) before 1.2.1 allows user-assisted remote SFTP serCVE-2007-1654 · Other software · Netsieben · reported by MITREHigh 9.3

    Buffer overflow in the Ne7sshSftp::addOpenHandle function in ne7ssh_sftp.cpp in NetSieben SSH Library (ne7ssh) before 1.2.1 allows user-assisted remote SFTP servers to cause a denial of service (crash) or possibly execute arbitrary code via multiple file transfers, related to multiple open file handles in SFTP (1) put and (2) get operations.

    Product
    Netsieben SSH Library
    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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