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Echo: libcap2: security update to 1:2.66-4-e0

medium Tenable Cloud Security Plugin ID 462126

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - The PAM module pam_cap.so of libcap configuration supports group names starting with “@”, during actual
 parsing, configurations not starting with “@” are incorrectly recognized as group names. This may result
 in nonintended users being granted an inherited capability set, potentially leading to security risks.
 Attackers can exploit this vulnerability to achieve local privilege escalation on systems where
 /etc/security/capability.conf is used to configure user inherited privileges by constructing specific
 usernames. (CVE-2025-1390)

Solution

Update the libcap2 library and its related packages to version 1:2.66-4-e0 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-1390

Plugin Details

Severity: Medium

ID: 462126

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 52.04

CVSS v2

Risk Factor: Medium

Base Score: 5.2

Temporal Score: 3.8

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

CVSS Score Source: CVE-2025-1390

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 1/29/2026

Vulnerability Publication Date: 12/12/2023

Reference Information

CVE: CVE-2025-1390

IAVA: 2025-A-0134