A use after free vulnerability [CWE-416] in FortiOS version 7.2.0 through 7.2.4 and version 7.0.0 through 7.0.10 and FortiProxy version 7.2…

published 2023-10-10 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-46167

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.4%; EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits: 0; none known

A use after free vulnerability [CWE-416] in FortiOS version 7.2.0 through 7.2.4 and version 7.0.0 through 7.0.10 and FortiProxy version 7.2.0 through 7.2.2 and version 7.0.0 through 7.0.8 may allow an unauthenticated remote attacker to crash the WAD process via multiple crafted packets reaching proxy policies or firewall policies with proxy mode alongside SSL deep packet inspection.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-24-074-11 updated 2026-01-14 cvss 5.3

Siemens RUGGEDCOM APE1808 with Fortigate NGFW Devices

Siemens RUGGEDCOM APE1808
affected: fixed in V7.4.1

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 2 y ago (2024-09-18)

Exploit prediction

1.43% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

Fortinet FortiOS
Fortinet FortiProxy

Classification

Weakness

CWE-416 Use After Free

Technology feeds

Fortinet rss critical rss

References

fortiguard.com /psirt/FG-IR-23-184
vendor-advisory

Sources

CVE List CVE-2023-41675
NVD CVE-2023-41675

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary