CVE-2026-56968 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-56968MEDIUM

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…

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  L  N  N    5.3   .0029   21.1     —

AFFECTED
  Product   Versions     Fixed
  GNU SASL  unspecified  —

TIMELINE
  Jun 23  EXPLOIT PUBLISHED — CVE-2026-56968 (GNU SASL). Public exploit reference added.
  Jun 23  Reserved by mitre
  Jun 23  Published (CNA: mitre)
  Jul 31  EXPLOIT PUBLISHED — CVE-2026-56968 (GNU SASL). Public exploit reference added.
  Jul 31  RESCORED — CVE-2026-56968 (GNU SASL). CVSS 3.7 → 5.3 (NVD).

CWE-908, CWE-839 · CNA: mitre · CVSS v3.1 · 5 references · NVD status: Modified

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.

Lifecycle

Complete event history — 5 events, chronological
Date	Event	Detail
June 23, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-56968 (GNU SASL). Public exploit reference added.
June 23, 2026	Reserved	Reserved by mitre
June 23, 2026	Published	Published (CNA: mitre)
July 31, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-56968 (GNU SASL). Public exploit reference added.
July 31, 2026	RESCORED	RESCORED — CVE-2026-56968 (GNU SASL). CVSS 3.7 → 5.3 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
GNU	GNU SASL	—	—	—

Weaknesses

CWE-908 · CWE-839

References (5)

https://ftp.gnu.org/gnu/gsasl/ [Product]
https://lists.debian.org/debian-lts-announce/2026/07/msg00049.html
https://lists.debian.org/debian-security-announce/2026/msg00259.html [Mailing List]
https://lists.gnu.org/archive/html/help-gsasl/2026-06/msg00000.html [Exploit, Mailing List, Vendor Advisory]
https://www.gnu.org/software/gsasl/ [Product]

Authoritative record: CVE-2026-56968 at cve.org

Vendors: gnu

Weaknesses: CWE-908 · CWE-839

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-56968 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.