CVE-2020-25580

Name: CVE-2020-25580
Creator: NVD / NIST
Published: 2021-03-26T21:15:12.787+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.72%

Last modified Jun 17, 2026

CVE-2020-25580 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. In FreeBSD 12.2-STABLE before r369346, 11.4-STABLE before r369345, 12.2-RELEASE before p4 and 11.4-RELEASE before p8 a regression in the login.access(5) rule processor has the effect of causing rules to fail to match even when they should not. This means that rules denying access may be ignored.. EPSS estimates a 0.72% chance of exploitation in the next 30 days.

Description

In FreeBSD 12.2-STABLE before r369346, 11.4-STABLE before r369345, 12.2-RELEASE before p4 and 11.4-RELEASE before p8 a regression in the login.access(5) rule processor has the effect of causing rules to fail to match even when they should not. This means that rules denying access may be ignored.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.72%

49.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-697

Affected Software

Vendor	Product	Versions
Freebsd	Freebsd	11.4
Freebsd	Freebsd	12.2

References

https://security.FreeBSD.org/advisories/FreeBSD-SA-21:03.pam_login_access.ascVendor Advisory
https://security.netapp.com/advisory/ntap-20210423-0005/Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:03.pam_login_access.ascVendor Advisory
https://security.netapp.com/advisory/ntap-20210423-0005/Third Party Advisory

Timeline

Published: Mar 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-25580?

How severe is CVE-2020-25580?

CVE-2020-25580 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.72% probability of exploitation in the next 30 days.

How do I fix CVE-2020-25580?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-25580?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST