Detections
Analytics
EulerOS 2.0 SP12 : gawk (EulerOS-SA-2026-3259)
medium Nessus Plugin ID 343724
Synopsis
The remote EulerOS host is missing multiple security updates.Description
According to the versions of the gawk packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :Integer overflow vulnerability has been found in 'builtin.c' program file of gawk. This issue may lead to memory exhaustion on the hosting operating system and could be used to overwrite gawk heap metadata and objects with attacker-controlled bytes. It affects gawk in versions 5.4.0 and below.(CVE-2026-40468)
Use After Free vulnerability has been found in 'io.c' program file of gawk (do_getline_redir() routine).
This issue may lead to a crash. It affects gawk in versions 5.4.0 and below.(CVE-2026-40467)
Buffer overflow vulnerability has been found in 'extension/readdir.c' program file of gawk (ftype() routine). This issue could be used to crash the program and potentially to achieve code execution, although the latter has not been confirmed to be feasible. It affects gawk in versions 5.4.0 and below.(CVE-2026-40553)
Tenable has extracted the preceding description block directly from the EulerOS gawk security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected gawk packages.See Also
Plugin Details
Severity: Medium
ID: 343724
File Name: EulerOS_SA-2026-3259.nasl
Version: 1.1
Type: Local
Family: Huawei Local Security Checks
Published: 9/8/2026
Updated: 9/8/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.3
Percentile: 53.6
CVSS v2
Risk Factor: High
Base Score: 9.4
Temporal Score: 7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:C
CVSS Score Source: CVE-2026-40468
CVSS v3
Risk Factor: Critical
Base Score: 9.1
Temporal Score: 7.9
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Medium
Base Score: 5.1
Threat Score: 1.2
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:L/SI:L/SA:L
CVSS Score Source: CVE-2026-40553
Vulnerability Information
CPE: cpe:/o:huawei:euleros:2.0, p-cpe:/a:huawei:euleros:gawk-help, p-cpe:/a:huawei:euleros:gawk
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp
Excluded KB Items: Host/EulerOS/uvp_version
Exploit Ease: No known exploits are available
Patch Publication Date: 9/8/2026
Vulnerability Publication Date: 7/13/2026