🛡️ CVE-2023-53705 on Debian — linux

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix out-of-bounds access in ipv6_find_tlv() optlen is fetched without checking whether there is more than one byte to parse. It can lead to out-of-bounds access. Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE.

Distribution advisory

This page covers CVE-2023-53705 as tracked by Debian, for the package linux. The fix is available in version 6.3.7-1; 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 low, integrity none, availability high.

Affected software

DEBIAN-CVE-2023-53705 is recorded against 1 package.

linux (fixed in 6.3.7-1)

Timeline and source

Published on 22 October 2025 and last revised on 5 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

CVE-2023-53705 on other distributions

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

BellSoft 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:L/I:N/A:H

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2025-10-22

Updated 2026-08-12

Modified 2026-08-05

Fix URL N/A

Affected Packages

Software	From version	Fixed in
linux	—	6.3.7-1

References

ADVISORY https://security-tracker.debian.org/tracker/CVE-2023-53705

🔗 NVD 🔗 Mitre

Similar Threats

Site Security Check

Is linux part of your stack?

DEBIAN-CVE-2023-53705 is rated CVSS 8.2 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.

Scan My Site Free →

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.