Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N N U N H N 7.5 .0570 92.4 —
AFFECTED Product Versions Fixed n/a n/a – —
TIMELINE Apr 2 Reserved by mitre Jul 9 Published (CNA: mitre) Aug 14 RESCORED — CVE-2021-30120. CVSS 9.9 → 7.5 (NVD).
Kaseya VSA before 9.5.7 allows attackers to bypass the 2FA requirement. The need to use 2FA for authentication in enforce client-side instead of server-side and can be bypassed using a local proxy. Thus rendering 2FA useless. Detailed description --- During the login process, after the user authenticates with username and password, the server sends a response to the client with the booleans MFARequired and MFAEnroled. If the attacker has obtained a password of a user and used an intercepting proxy (e.g. Burp Suite) to change the value of MFARequered from True to False, there is no prompt for the second factor, but the user is still logged in.
| Date | Event | Detail |
|---|---|---|
| April 2, 2021 | Reserved | Reserved by mitre |
| July 9, 2021 | Published | Published (CNA: mitre) |
| August 14, 2026 | RESCORED | RESCORED — CVE-2021-30120. CVSS 9.9 → 7.5 (NVD). |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| n/a | n/a | — | n/a | — |
Authoritative record: CVE-2021-30120 at cve.org
Weaknesses: CWE-669
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-30120 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.