What is CVE-2021-24029?

CVE-2021-24029 is a high-severity vulnerability in Facebook Mvfst, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2021-03-15.

How severe is CVE-2021-24029?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Facebook Mvfst

CVE-2021-24029

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. Th…

EPSS: 0.012 (63.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Facebook Mvfst — versions a67083ff4b8dcbb7ee2839da6338032030d712b0, unspecified
Facebook Proxygen — versions v2021.03.15.00, unspecified

Weakness classification (CWE)

CWE-617 — Reachable Assertion

References

cve-assign@fb.com (x_refsource_CONFIRM, Patch, Third Party Advisory)
cve-assign@fb.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2021-24029?: CVE-2021-24029 is a high-severity vulnerability in Facebook Mvfst, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2021-03-15.
How severe is CVE-2021-24029?: High severity. CVSS v3 base score is 7.5 out of 10.