Exploited vulnerability · CISA KEV

Is CVE-2022-41328 exploited? Yes: in CISA KEV since 14 Mar 2023

Gociux · Fortinet FortiOS · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2022-41328, Fortinet FortiOS Path Traversal Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 14 Mar 2023, 7 days after it was published. It affects Fortinet FortiOS, an internet-facing product of the kind attackers use for initial access. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 14 Mar 2023

ransomwareNot knownno confirmed use

EPSStop 5%very likely to be exploited

severity6.5CVSS 3.1 · medium

US federal due4 Apr 2023BOD 22-01 deadline

What it is

Fortinet FortiOS contains a path traversal vulnerability that may allow a local privileged attacker to read and write files via crafted CLI commands.

Vendor	Fortinet (32 exploited CVEs in KEV)
Product	FortiOS
Vulnerability	Fortinet FortiOS Path Traversal Vulnerability
Weakness	CWE-22
Published	7 Mar 2023
Added to KEV	14 Mar 2023
Reported by (CNA)	fortinet

What to do

Check whether you run it. Look for FortiOS in your asset inventory, including appliances and cloud images. Stack check lists every exploited Fortinet CVE at once.
Apply the fix. Apply updates per vendor instructions.
If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 7 Mar 2023.
Get told next time. Email alerts when CISA adds a CVE for Fortinet.

Other exploited CVEs in FortiOS

CVE-2025-68686: Fortinet FortiOS Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (27 Jul 2026)
CVE-2019-6693: Fortinet FortiOS Use of Hard-Coded Credentials Vulnerability (25 Jun 2025)
CVE-2024-21762: Fortinet FortiOS Out-of-Bound Write Vulnerability (9 Feb 2024)
CVE-2022-42475: Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability (13 Dec 2022)
CVE-2021-44168: Fortinet FortiOS Arbitrary File Download (10 Dec 2021)
CVE-2019-5591: Fortinet FortiOS Default Configuration Vulnerability (3 Nov 2021)

References

Questions

Is CVE-2022-41328 being exploited?

Yes. CISA added CVE-2022-41328 to the Known Exploited Vulnerabilities catalog on 14 Mar 2023, which means there is reliable evidence of exploitation in the wild.

Is CVE-2022-41328 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2022-41328?

Apply updates per vendor instructions. Check Fortinet's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected FortiOS and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in March 2023 · Fortinet scorecard · act-now radar.

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