What is CVE-2026-56968?

CVE-2026-56968 is a low-severity vulnerability in Gnu Sasl, classified under CWE-839. CVSS score: 3.7/10. Published 2026-06-23.

How severe is CVE-2026-56968?

Low severity. CVSS v3 base score is 3.7 out of 10.

Vulnerability in Gnu Sasl

CVE-2026-56968

GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.

EPSS: 0.003 (20.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Gnu Sasl — versions 0
Gnu Sasl
Debian Debian_linux — versions 13.0

Weakness classification (CWE)

CWE-839
CWE-908 — Use of Uninitialized Resource

References

cve@mitre.org (Exploit, Mailing List, Vendor Advisory)
cve@mitre.org (Mailing List)
cve@mitre.org (Product)
cve@mitre.org (Product)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-56968?: CVE-2026-56968 is a low-severity vulnerability in Gnu Sasl, classified under CWE-839. CVSS score: 3.7/10. Published 2026-06-23.
How severe is CVE-2026-56968?: Low severity. CVSS v3 base score is 3.7 out of 10.