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Linux Distros Unpatched Vulnerability : CVE-2025-30258

medium Nessus Plugin ID 251944

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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.

 - In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a verification DoS. (CVE-2025-30258)

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-2025-30258

https://security-tracker.debian.org/tracker/CVE-2025-30258

Plugin Details

Severity: Medium

ID: 251944

File Name: unpatched_CVE_2025_30258.nasl

Version: 1.6

Type: local

Agent: unix

Family: Misc.

Published: 8/19/2025

Updated: 12/10/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P

CVSS Score Source: CVE-2025-30258

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.5

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:U/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:redhat:enterprise_linux:gnupg2, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:debian:debian_linux:gnupg2, cpe:/o:debian:debian_linux:12.0, cpe:/o:redhat:enterprise_linux:10, p-cpe:/a:redhat:enterprise_linux:gnupg2-smime

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: 3/19/2025

Reference Information

CVE: CVE-2025-30258