CVE-2026-68320

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-68320

Key Details

CVE	CVE-2026-68320
CVSS Score / Version	7.3 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is low; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

sctp: fix auth_chunk_list capacity check in sctp_auth_ep_add_chunkid

sctp_auth_ep_add_chunkid() uses SCTP_NUM_CHUNK_TYPES (20) as the

capacity limit for ep->auth_chunk_list, allowing it to hold up to

20 chunk entries (param_hdr.length up to 24). However, the copy

destination asoc->c.auth_chunks in struct sctp_cookie is only

SCTP_AUTH_MAX_CHUNKS (16) entries (20 bytes). When more than 16

chunks are added, sctp_association_init() memcpy overflows the

destination by up to 4 bytes.

Fix by using SCTP_AUTH_MAX_CHUNKS as the capacity limit, matching

the destination capacity. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-68320
CVE	https://www.cve.org/CVERecord?id=CVE-2026-68320

Source

Reference

NVD

CVE