🛡️ CVE-2026-56968 — debian-linux

🟢 CVSS 3.7 — Low ⚠️ Exploit Public CWE-839 NVD
3.7
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability none.

Affected software

CVE-2026-56968 is recorded against 2 packages.

  • debian-linux
  • sasl (fixed in 2.2.4)

Timeline and source

Published on 23 June 2026 and last revised on 31 July 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

ftp.gnu.org
lists.debian.org
lists.gnu.org
www.gnu.org
lists.debian.org

Details

Severity LOW
CVSS Score 3.7
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE CWE-839
Public Exploit ⚠️ Yes
Source NVD
Published 2026-06-23
Updated 2026-08-11
Modified 2026-07-31
Fix URL N/A

Affected Packages

Software From version Fixed in
debian-linux
sasl 2.2.4

Similar Threats

Exploit Protection

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