Cyber Resilience

CVE-2021-28090

Medium

Published: 19 March 2021

Published
19 March 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score 0.0198 84.0th percentile
Risk Priority 12 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-28090 is a medium-severity Reachable Assertion (CWE-617) vulnerability in Torproject Tor. Its CVSS base score is 5.3 (Medium).

Operationally, ranked in the top 16.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Tor before 0.4.5.7 allows a remote attacker to cause Tor directory authorities to exit with an assertion failure, aka TROVE-2021-002.

CWE(s)
CWE-617

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

torproject
tor
0.4.4.0, 0.4.4.1, 0.4.4.2, 0.4.4.3 · ≤ 0.3.5.14 · 0.4.4.4 — 0.4.4.8 · 0.4.5.0 — 0.4.5.7
fedoraproject
fedora
33

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References