Detections
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EulerOS 2.0 SP10 : libtheora (EulerOS-SA-2026-2660)

high Nessus Plugin ID 326600

Synopsis

The remote EulerOS host is missing a security update.

Description

According to the versions of the libtheora packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

 A flaw was found in libtheora. This heap-based out-of-bounds read vulnerability exists within the AVI (Audio Video Interleave) parser, specifically in the avi_parse_input_file() function. A local attacker could exploit this by tricking a user into opening a specially crafted AVI file containing a truncated header sub-chunk. This could lead to a denial-of-service (application crash) or potentially leak sensitive information from the heap.(CVE-2026-5673)

Tenable has extracted the preceding description block directly from the EulerOS libtheora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected libtheora packages.

See Also

http://www.nessus.org/u?2ed27c55

Plugin Details

Severity: High

ID: 326600

File Name: EulerOS_SA-2026-2660.nasl

Version: 1.1

Type: Local

Published: 7/14/2026

Updated: 7/14/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.62

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 5.2

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

CVSS Score Source: CVE-2026-5673

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.4

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:libtheora, cpe:/o:huawei:euleros:2.0, p-cpe:/a:huawei:euleros:libtheora-help

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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/13/2026

Vulnerability Publication Date: 4/6/2026

Reference Information

CVE: CVE-2026-5673