Detections
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Echo: diffutils: security update to 1:3.10-4+e1

low Tenable Cloud Security Plugin ID 455566

Description

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

 - diff3 tool from GNU diffutils is vulnerable to a heap‑based buffer overflow due to multiple signed integer
 overflows in line‑mapping calculations. Incorrect arithmetic in mapping line ranges can result in
 corrupted values being used for memory allocation and loop bounds. When processing crafted diff output,
 these overflows may cause the application to allocate insufficient memory and subsequently perform
 out‑of‑bounds writes during internal processing. An attacker who can control the output of the diff
 program used by diff3 (e.g. via --diff-program pointing to a malicious script) can trigger out-of-bounds
 writes, resulting in a crash and potentially remote code execution depending on the environment. This
 issue has been fixed in commit 9ff04d5b84743e331e80b589335a52c5480d1815 NOTE: The project maintainers
 claim that this is not a security issue. They state that the worst outcome this issue can cause is a crash
 of diff and that it cannot be used to escalate privileges. (CVE-2026-53910)

Solution

Update the diffutils library and its related packages to version 1:3.10-4+e1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-53910

Plugin Details

Severity: Low

ID: 455566

Version: Revision 1.2

Type: Local

Published: 10/1/2026

Updated: 10/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.31

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2026-53910

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

CVSS v4

Risk Factor: Low

Base Score: 2.1

Threat Score: 0.5

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:L/SI:L/SA:L

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/23/2026

Vulnerability Publication Date: 7/22/2026

Reference Information

CVE: CVE-2026-53910