What is CVE-2021-42096?

CVE-2021-42096 is a medium-severity vulnerability in Gnu Mailman, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 4.3/10. Published 2021-10-21.

How severe is CVE-2021-42096?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Gnu Mailman

CVE-2021-42096

GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A certain csrf_token value is derived from the admin password, and may be useful in conducting a brute-force attack against that password.

EPSS: 0.012 (65.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Gnu Mailman
Debian Debian_linux — versions 10.0
N/a — versions n/a

Weakness classification (CWE)

CWE-307 — Improper Restriction of Excessive Authentication Attempts

References

cve@mitre.org (x_refsource_CONFIRM)
cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
cve@mitre.org (mailing-list, x_refsource_MLIST, Patch, Mailing List, Third Party Advisory)
cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)

Frequently asked questions

What is CVE-2021-42096?: CVE-2021-42096 is a medium-severity vulnerability in Gnu Mailman, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 4.3/10. Published 2021-10-21.
How severe is CVE-2021-42096?: Medium severity. CVSS v3 base score is 4.3 out of 10.