Buffer overflow in Fortinet Fim-7901e

CVE-2022-42475

A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN 7.2.0 through 7.2.2, 7.0.0 through 7.0.8, 6.4.0 through 6.4.10, 6.2.0 through 6.2.11, 6.0.15 and earlier and FortiProxy SSL-VPN 7.2.0 through 7.2.1, 7.0.7 and earlier…

EPSS: 0.995 (99.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: .

Required action: Apply updates per vendor instructions.

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-42475?
CVE-2022-42475 is a critical-severity vulnerability in Fortinet Fim-7901e, classified under CWE-197. CVSS score: 9.8/10. Published 2023-01-02.
How severe is CVE-2022-42475?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-42475 known to be exploited?
Yes. CVE-2022-42475 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-12-13), indicating it is being actively exploited. 43 public proof-of-concept repositories are indexed.