🛡️ CVE-2023-40359 on Debian — xterm

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

xterm before 380 supports ReGIS reporting for character-set names even if they have unexpected characters (i.e., neither alphanumeric nor underscore), aka a pointer/overflow issue. This can only occur for xterm installations that are configured at compile time to use a certain experimental feature.

Distribution advisory

This page covers CVE-2023-40359 as tracked by Debian, for the package xterm. The fix is available in version 382-2; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

DEBIAN-CVE-2023-40359 is recorded against 1 package.

xterm (fixed in 382-2)

Timeline and source

Published on 14 August 2023 and last revised on 7 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

CVE-2023-40359 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Base record Ubuntu

Details

Severity Unknown

CVSS Score N/A

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2023-08-14

Updated 2026-08-12

Modified 2026-08-07

Fix URL N/A

Affected Packages

Software	From version	Fixed in
xterm	—	382-2

References

ADVISORY https://security-tracker.debian.org/tracker/CVE-2023-40359

🔗 NVD 🔗 Mitre

Similar Threats

Unknown CLSA-2026-1777030519
Unknown ALSA-2025:14075
Unknown ALSA-2025:7427
Unknown AZL-27957
Critical CVE-2023-40359

Exploit Protection

Are you running xterm?

DEBIAN-CVE-2023-40359 carries CVSS 9.8 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

Check My Site For DEBIAN-CVE-2023-40359 →

No credit card required · Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.