How severe is CVE-2026-56968?

CVE-2026-56968 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-56968 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-56968?

CVE-2026-56968 primarily affects Gnu Sasl. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-56968?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-56968 have an EU (EUVD) identifier?

Yes. CVE-2026-56968 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38512.

When was CVE-2026-56968 published?

CVE-2026-56968 was published on 2026-06-23 and last updated on 2026-06-29.

CVE-2026-56968

CVE-2026-56968 is a low-severity vulnerability in Gnu Sasl with a CVSS 3.x base score of 3.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-908.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-38512
Weakness: CWE-908
Affected product: Gnu Sasl
Published: 2026-06-23
Last modified: 2026-06-29

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-56968?: CVE-2026-56968 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-56968 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-56968?: CVE-2026-56968 primarily affects Gnu Sasl. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-56968?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-56968 have an EU (EUVD) identifier?: Yes. CVE-2026-56968 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38512.
When was CVE-2026-56968 published?: CVE-2026-56968 was published on 2026-06-23 and last updated on 2026-06-29.

References

Affected products (2)

cpe:2.3:a:gnu:sasl:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:13.0:*:*:*:*:*:*:*

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