The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg     parameter was not NULL and not its ASN.1 type, before treating it as a PBMParameter. A crafted message can     contain a parameter of a different type, which is then dereferenced as an invalid pointer. Impact summary:
    A remote, unauthenticated attacker can crash an application acting as a CMP server that accepts PBM-     protected messages, or a CMP client talking to a malicious or intercepted CMP server, resulting in a     Denial of Service. CWE: CWE-476: NULL Pointer Dereference Description: When verifying the password-based     MAC protection of a CMP message, OpenSSL library reads the protectionAlg algorithm parameter with     X509_ALGOR_get0(), which returns both the parameter type and its value pointer. The value is then cast to     an ASN1_STRING and treated as the expected PBMParameter after only checking that pointer is not NULL. The     parameter type returned by X509_ALGOR_get0() was never consulted. This happens during protection     verification, before any MAC is computed, so no knowledge of the PBM shared secret is required; the only     precondition is that PBM verification is reachable. On the server side this is reached from     OSSL_CMP_SRV_process_request() for any application that stands up a CMP server accepting PBM-protected     messages, and on the client side from CMP response validation against a malicious or on-path (MITM)     server. The reliable consequence is a denial of service; there is no memory disclosure, no controlled     memory write, and no path to code execution. CMP is a specialized feature that an application must     explicitly enable. FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules     are affected by this CVE. (CVE-2026-63076)

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Linux Distros Unpatched Vulnerability : CVE-2026-63076

high Nessus Plugin ID 339526

Version 1.7

Version 1.6

Version 1.5

Version 1.4

Version 1.2

Version 1.1

Version 1.7 Sep 14, 2026, 6:39 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202609141839
Version 1.6 Sep 13, 2026, 8:08 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202609132008
Version 1.5 Sep 2, 2026, 6:07 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202609021807
Version 1.4 Aug 29, 2026, 12:30 AM CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P") Detection (updated detection logic) Plugin metadata Plugin Feed: 202608290030
Version 1.2 Aug 26, 2026, 1:14 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202608261314
Version 1.1 Aug 26, 2026, 3:06 AM New Plugin Feed: 202608260306