CVE-2021-24029
mediumpriority · track · 30EPSS 0.012 · 68 %ileEUUSEPSS · scored 2026-10-27
A packet of death scenario is possible in mvfst via a specially crafted message during a QUIC session, which causes a crash via a failed assertion. Per QUIC specification, this particular message should be treated as a connection error. This issue affects mvfst versions prior to commit a67083ff4b8dcbb7ee2839da6338032030d712b0 and proxygen versions prior to v2021.03.15.00.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://github.com/facebookincubator/mvfst/commit/a67083ff4b8dcbb7ee2839da6338032030d712b0cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-24029cnnvd
- https://www.facebook.com/security/advisories/cve-2021-24029cnnvd
- https://github.com/facebookincubator/mvfst/commit/a67083ff4b8dcbb7ee2839da6338032030d712b0enisa_euvd
- https://www.facebook.com/security/advisories/cve-2021-24029enisa_euvd
- https://github.com/facebookincubator/mvfst/commit/a67083ff4b8dcbb7ee2839da6338032030d712b0PatchThird Party Advisorynvd
- https://www.facebook.com/security/advisories/cve-2021-24029Vendor Advisorynvd
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