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.
Published: 2025-10-22
Score: 7.0 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Mon, 11 May 2026 20:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Thu, 23 Oct 2025 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Thu, 23 Oct 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important


Wed, 22 Oct 2025 13:45:00 +0000

Type Values Removed Values Added
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.
Title ipv6: Fix out-of-bounds access in ipv6_find_tlv()
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-11T19:50:15.638Z

Reserved: 2025-10-22T13:21:37.346Z

Link: CVE-2023-53705

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2025-10-22T14:15:45.080

Modified: 2026-04-15T00:35:42.020

Link: CVE-2023-53705

cve-icon Redhat

Severity : Important

Publid Date: 2025-10-22T00:00:00Z

Links: CVE-2023-53705 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-10-23T10:05:11Z

Weaknesses

No weakness.