What is CVE-2021-30120?

CVE-2021-30120 is a critical-severity vulnerability in Kaseya Vsa, classified under Incorrect Resource Transfer Between Spheres. CVSS score: 9.9/10. Published 2021-07-09.

How severe is CVE-2021-30120?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Vulnerability in Kaseya Vsa

CVE-2021-30120

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 desc…

EPSS: 0.057 (92.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Kaseya Vsa
N/a — versions n/a

Weakness classification (CWE)

CWE-669 — Incorrect Resource Transfer Between Spheres

References

cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
cve@mitre.org (Permissions Required, x_refsource_CONFIRM, Third Party Advisory)
cve@mitre.org (Permissions Required, x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2021-30120?: CVE-2021-30120 is a critical-severity vulnerability in Kaseya Vsa, classified under Incorrect Resource Transfer Between Spheres. CVSS score: 9.9/10. Published 2021-07-09.
How severe is CVE-2021-30120?: Critical severity. CVSS v3 base score is 9.9 out of 10.