What is CVE-2021-42761?

CVE-2021-42761 is a critical-severity vulnerability in Fortinet Fortiweb, classified under Session Fixation. CVSS score: 9.0/10. Published 2023-02-16.

How severe is CVE-2021-42761?

Critical severity. CVSS v3 base score is 9.0 out of 10.

Vulnerability in Fortinet Fortiweb

CVE-2021-42761

A condition for session fixation vulnerability [CWE-384] in the session management of FortiWeb versions 6.4 all versions, 6.3.0 through 6.3.16, 6.2.0 through 6.2.6, 6.1.0 through 6.1.2, 6.0.0 through 6.0.7, 5.9.0 through 5.9.1 may allow a…

EPSS: 0.015 (70.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Fortinet Fortiweb — versions 6.4.0, 6.3.0, 6.2.0

Weakness classification (CWE)

CWE-384 — Session Fixation

References

psirt@fortinet.com (Vendor Advisory)

Frequently asked questions

What is CVE-2021-42761?: CVE-2021-42761 is a critical-severity vulnerability in Fortinet Fortiweb, classified under Session Fixation. CVSS score: 9.0/10. Published 2023-02-16.
How severe is CVE-2021-42761?: Critical severity. CVSS v3 base score is 9.0 out of 10.