CVE-2026-68343

Source
https://cve.org/CVERecord?id=CVE-2026-68343
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68343.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-68343
Downstream
Published
2026-08-10T12:03:19.939Z
Modified
2026-08-21T03:30:33.757708967Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
Summary
smb: client: validate DFS referral PathConsumed
Details

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

smb: client: validate DFS referral PathConsumed

parsedfsreferrals() validates that the response contains the fixed referral entry array and, on for-next, the per-referral string offsets. However, the response also contains a PathConsumed value that is later used for DFS path parsing.

If a malformed response provides a PathConsumed value larger than the search name, later DFS parsing can advance beyond the end of the path.

Validate PathConsumed against the search name length before storing it in the parsed referral.

Database specific
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68343.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
4ecce920e13ace16a5ba45efe8909946c28fb2ad
Fixed
bfebe5110fd135d86d65a0a346e14c106b02028b
Fixed
5b439f39f33ec15d319ced3b025e122346fba987
Fixed
285bd4a5f3f156aa5869843b47a1b1380b774241
Fixed
2fdd6d196c656b376cc251e1e9ff110b3ed522e1
Fixed
9f88a99ed511651b2dc2177d6854b2d1b8322e75
Fixed
f6f5ee2aa33b350c671721b965251c42cebb962e

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68343.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.11.0
Fixed
6.1.183
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.148
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.101
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.42
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.6

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68343.json"