A buffer underwrite ('buffer underflow') vulnerability in the administrative interface of Fortinet FortiOS version 7.2.0 through 7.2.3, ver…

published 2025-03-24 19 mo ago modified 2026-06-17 4 mo ago also EUVD-2023-29551

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 18.3%; EPSS 18.3% chance of exploitation in 30 days, percentile 97%
public exploits: 0; none known

A buffer underwrite ('buffer underflow') vulnerability in the administrative interface of Fortinet FortiOS version 7.2.0 through 7.2.3, version 7.0.0 through 7.0.6, version 6.4.0 through 6.4.11 and version 6.2.12 and below, FortiProxy version 7.2.0 through 7.2.2, version 7.0.0 through 7.0.8, version 2.0.12 and below and FortiOS-6K7K version 7.0.5, version 6.4.0 through 6.4.10 and version 6.2.0 through 6.2.10 and below allows a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests.

Patch / fix

fixed in 8

fortinet fortiweb 6.1.4, 6.2.8, 6.3.23, 6.4.3, 7.0.7, 7.2.2
fortinet fortiswitchmanager 7.0.2, 7.2.2
fortinet fortiproxy 7.0.9, 7.2.3
fortinet fortios-6k7k 6.2.13, 6.4.12
fortinet fortimanager 6.0.12, 6.2.11, 6.4.12, 7.0.5
fortinet fortianalyzer 6.0.12, 6.2.11, 6.4.12, 7.0.5
fortinet fortiswitch 7.0.7, 7.2.4
fortinet fortios 6.2.13, 6.4.12, 7.0.10, 7.2.4

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 9.8

Siemens RUGGEDCOM APE1808 with Fortigate NGFW Devices

Siemens RUGGEDCOM APE1808
affected: fixed in V7.4.1, mitigation

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: total
Assessed: 19 mo ago (2025-03-24)

Exploit prediction

18.33% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Fortinet FortiSwitchManager
Fortinet FortiAnalyzer
Fortinet FortiOS-6K7K
Fortinet FortiProxy
Fortinet FortiOS
Fortinet FortiManager
Fortinet FortiWeb

Classification

Weakness

CWE-124 Buffer Underwrite

Technology feeds

Fortinet rss critical rss

References

fortiguard.com /psirt/FG-IR-23-001
vendor-advisory

Sources

CVE List CVE-2023-25610
NVD CVE-2023-25610

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