CVE-2021-24028

CRITICALNVD 9.89.8—Trending — 3 sources updated this week

9.8

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.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 82.5%
KEV: Not listed

Published

April 14, 2021

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated May 30, 2026

Upstream fix merged — awaiting tagged release. Sources: github_commit.

generic

Facebook

https://www.facebook.com/security/advisories/cve-2021-24028

github_commit

commit bfda1efa547d (facebook/fbthrift)

Fix landed in facebook/fbthrift commit bfda1efa547d — awaiting tagged release

https://github.com/facebook/fbthrift/commit/bfda1efa547dce11a38592820916db01b05b9339

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-763

Data Freshness Timeline

(refreshed 12× in last 7d / 13× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 18:19 UTCEG score recompute
2026-05-26 18:19 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-24 16:49 UTCepss_batch

Frequently asked(5)

What is CVE-2021-24028?

CVE-2021-24028 is a critical vulnerability published on April 14, 2021. 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.

When was CVE-2021-24028 disclosed?

CVE-2021-24028 was first published in the National Vulnerability Database on April 14, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-24028 actively exploited?

CVE-2021-24028 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 82.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-24028?

CVE-2021-24028 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2021-24028?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-24028, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-24028

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