Detections
Analytics
Linux Distros Unpatched Vulnerability : CVE-2026-120457
medium Nessus Plugin ID 375285
Synopsis
The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.Description
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.- libaec through 1.1.7 contains an out-of-bounds read vulnerability in m_se_decode() in src/decode.c that allows attackers to bypass a signed bounds check via an overlong fundamental sequence. Attackers can supply a crafted CCSDS 121.0/SZIP stream with 2^31 or more zero bits to crash the decoder or leak adjacent memory into decoded samples. (CVE-2026-120457)
Note that Nessus relies on the presence of the package as reported by the vendor.
Solution
There is no known solution at this time.See Also
https://access.redhat.com/security/cve/cve-2026-120457
Plugin Details
Severity: Medium
ID: 375285
File Name: unpatched_CVE_2026_120457.nasl
Version: 1.3
Type: Local
Agent: unix
Family: Misc.
Published: 11/2/2026
Updated: 11/4/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.5
Percentile: 51.3
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2026-120457
CVSS v3
Risk Factor: Medium
Base Score: 5.3
Temporal Score: 4.9
Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C
CVSS v4
Risk Factor: Medium
Base Score: 5.8
Threat Score: 1.9
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Vulnerability Information
CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.10, cpe:/o:centos:centos:8, cpe:/o:debian:debian_linux:12.0, cpe:/o:debian:debian_linux:13.0, cpe:/o:debian:debian_linux:14.0, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:canonical:ubuntu_linux:libaec, p-cpe:/a:centos:centos:libaec-devel, p-cpe:/a:centos:centos:libaec, p-cpe:/a:debian:debian_linux:libaec, p-cpe:/a:redhat:enterprise_linux:libaec-devel, p-cpe:/a:redhat:enterprise_linux:libaec
Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier
Exploit Ease: No known exploits are available
Vulnerability Publication Date: 11/2/2026
Reference Information
CVE: CVE-2026-120457