Is CVE-2026-56968 in the CISA KEV catalog?

No. CVE-2026-56968 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-56968?

CVE-2026-56968 has a CVSS v3 base score of 3.7 (LOW).

What is the EPSS score for CVE-2026-56968?

CVE-2026-56968 has an EPSS score of 0.24% (15th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-56968?

Upgrade gsasl on debian 13 to 2.2.2-1.1+deb13u2 or later.

CVE & CISA-KEV Catalog

CVE-2026-56968

LOW

3.7

CVSS v3

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.

CWE-839 CWE-908

How to fix

Remediation Available

gsaslDebian

Fixed in:2.2.2-1.1+deb13u2CVE-2026-56968

Fixed in:2.2.4-1CVE-2026-56968

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.24%probability of exploitation in 30 days

15thpercentile

Low risk: more likely to be exploited than 15% of all known CVEs.

References

Exploit1

lists.gnu.org

Mailing List1

lists.debian.org

Product2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-29.