CVE-2021-24028

Name: CVE-2021-24028
Creator: NVD / NIST
Published: 2021-04-14T00:15:13.057+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.75%

Last modified Jun 17, 2026

CVE-2021-24028 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An invalid free in Thrift's table-based serialization can cause the application to crash or potentially result in code execution or other undesirable effects. This issue affects Facebook Thrift prior to v2021.02.22.00.. EPSS estimates a 1.75% chance of exploitation in the next 30 days.

Description

An invalid free in Thrift's table-based serialization can cause the application to crash or potentially result in code execution or other undesirable effects. This issue affects Facebook Thrift prior to v2021.02.22.00.

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

1.75%

74.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Facebook	Thrift	< 2021.02.22.00

References

https://github.com/facebook/fbthrift/commit/bfda1efa547dce11a38592820916db01b05b9339Patch, Third Party Advisory
https://www.facebook.com/security/advisories/cve-2021-24028Vendor Advisory
https://github.com/facebook/fbthrift/commit/bfda1efa547dce11a38592820916db01b05b9339Patch, Third Party Advisory
https://www.facebook.com/security/advisories/cve-2021-24028Vendor Advisory

Timeline

Published: Apr 14, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24028?

How severe is CVE-2021-24028?

CVE-2021-24028 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.75% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24028?

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-2021-24028?

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

Scan your code now

Source: NVD / NIST