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Vulnerability record · CVE-2026-56968 · published 23 June 2026

CVE-2026-56968: Gnu sasl use of uninitialized resource vulnerability

Gnu · Sasl

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.

5.3 CVSS 3.1 Medium EPSS 0.41% · top 67.0% CWE-839 · CWE-839CWE-908 · Use of uninitialized resource
5.3CVSS 3.1 base score
0.41%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
5References, 1 tagged exploit
31 Jul 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://ftp.gnu.org/gnu/gsasl/ Product
https://lists.debian.org/debian-security-announce/2026/msg00259.html Mailing List
https://lists.gnu.org/archive/html/help-gsasl/2026-06/msg00000.html ExploitMailing ListVendor Advisory
https://www.gnu.org/software/gsasl/ Product
https://lists.debian.org/debian-lts-announce/2026/07/msg00049.html

Track CVE-2026-56968 inside VULONE

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-56968), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.