CVE-2020-7454

Name: CVE-2020-7454
Creator: NVD / NIST
Published: 2020-05-13T16:15:13.027+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.71%

Last modified Jun 17, 2026

CVE-2020-7454 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In FreeBSD 12.1-STABLE before r360971, 12.1-RELEASE before p5, 11.4-STABLE before r360971, 11.4-BETA1 before p1 and 11.3-RELEASE before p9, libalias does not properly validate packet length resulting in modules causing an out of bounds read/write condition if no checking was built into the module.. EPSS estimates a 2.71% chance of exploitation in the next 30 days.

Description

In FreeBSD 12.1-STABLE before r360971, 12.1-RELEASE before p5, 11.4-STABLE before r360971, 11.4-BETA1 before p1 and 11.3-RELEASE before p9, libalias does not properly validate packet length resulting in modules causing an out of bounds read/write condition if no checking was built into the module.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.71%

84.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Freebsd	Freebsd	11.3
Freebsd	Freebsd	11.4
Freebsd	Freebsd	12.1

References

https://security.FreeBSD.org/advisories/FreeBSD-SA-20:12.libalias.ascVendor Advisory
https://security.netapp.com/advisory/ntap-20200518-0005/Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-659/Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-660/Third Party Advisory, VDB Entry
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:12.libalias.ascVendor Advisory
https://security.netapp.com/advisory/ntap-20200518-0005/Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-659/Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-660/Third Party Advisory, VDB Entry

Timeline

Published: May 13, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-7454?

How severe is CVE-2020-7454?

CVE-2020-7454 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.71% probability of exploitation in the next 30 days.

How do I fix CVE-2020-7454?

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-2020-7454?

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

Scan your code now

Source: NVD / NIST