HOMEVULNERABILITIESCVE-2021-24028
CRITICAL

CVE-2021-24028

CWE-763Published: April 14, 2021· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2021-24028 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

facebook1 product(s)
thrift
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

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

All References (4)

→
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

Quick Facts

CVE IDCVE-2021-24028
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-763
CISA KEVNo
Affected1 vendor(s)
PublishedApr 14, 2021

Related CVEs (CWE-763)

CVE-2024-44852
9.8
CVE-2020-0103
9.8
CVE-2020-11105
9.8
CVE-2019-11930
9.8
CVE-2021-30473
9.8
CVE-2018-6836
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-24028 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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