CVE-2026-43862

LOW
Published May 4, 2026 Modified May 5, 2026 CWE-843

Description

In mutt before 2.3.2, the imap_auth_gss security level is mishandled.

CVSS v3.1 Score

3.7
LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS — Exploit Prediction

0.0004
Probability of exploitation
0.12%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-843 CWE-843

References

Frequently Asked Questions

What is CVE-2026-43862? +
In mutt before 2.3.2, the imap_auth_gss security level is mishandled. It has a CVSS v3.1 base score of 3.7 (LOW).
How severe is CVE-2026-43862? +
CVE-2026-43862 has a CVSS v3.1 score of 3.7 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0004, placing it in the 0th percentile for exploitation probability.
How do I check if I'm vulnerable to CVE-2026-43862? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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