CVE-2020-7460

Name: CVE-2020-7460
Creator: NVD / NIST
Published: 2020-08-06T17:15:11.317+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7/10EPSS 0.72%

Last modified Jun 17, 2026

CVE-2020-7460 is a high-severity vulnerability rated 7/10 on the CVSS scale. In FreeBSD 12.1-STABLE before r363918, 12.1-RELEASE before p8, 11.4-STABLE before r363919, 11.4-RELEASE before p2, and 11.3-RELEASE before p12, the sendmsg system call in the compat32 subsystem on 64-bit platforms has a time-of-check to time-of-use vulnerability allowing a mailcious userspace program to modify control message headers after they were validation.. EPSS estimates a 0.72% chance of exploitation in the next 30 days.

Description

In FreeBSD 12.1-STABLE before r363918, 12.1-RELEASE before p8, 11.4-STABLE before r363919, 11.4-RELEASE before p2, and 11.3-RELEASE before p12, the sendmsg system call in the compat32 subsystem on 64-bit platforms has a time-of-check to time-of-use vulnerability allowing a mailcious userspace program to modify control message headers after they were validation.

Metrics

CVSS 3.1

7/10

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

EPSS Probability

0.72%

49.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-367

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-20:23.sendmsg.ascVendor Advisory
https://security.netapp.com/advisory/ntap-20200821-0005/Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-949/Third Party Advisory, VDB Entry
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:23.sendmsg.ascVendor Advisory
https://security.netapp.com/advisory/ntap-20200821-0005/Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-949/Third Party Advisory, VDB Entry

Timeline

Published: Aug 6, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-7460?

How severe is CVE-2020-7460?

CVE-2020-7460 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.72% probability of exploitation in the next 30 days.

How do I fix CVE-2020-7460?

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-2020-7460?

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

Scan your code now

Source: NVD / NIST