CVE-2021-24028

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-04-14 · updated 2026-06-17
Weakness: CWE-763

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.

Affected products

Facebook Thrift: before 2021.02.22.00 — fixed in 2021.02.22.00

How to fix

Upgrade to a fixed version: Facebook Thrift 2021.02.22.00. Check the vendor advisory for mitigations.

References

https://github.com/facebook/fbthrift/commit/bfda1efa547dce11a38592820916db01b05b9339
https://www.facebook.com/security/advisories/cve-2021-24028
https://github.com/facebook/fbthrift/commit/bfda1efa547dce11a38592820916db01b05b9339
https://www.facebook.com/security/advisories/cve-2021-24028

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