An improper restriction of excessive authentication attempts vulnerability [CWE-307] in Fortinet FortiOS version 7.2.0 through 7.2.3 and be…

published 2023-04-11 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-46917

cvss: 5.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits: 0; none known

An improper restriction of excessive authentication attempts vulnerability [CWE-307] in Fortinet FortiOS version 7.2.0 through 7.2.3 and before 7.0.10, FortiProxy version 7.2.0 through 7.2.2 and before 7.0.8 administrative interface allows an attacker with a valid user account to perform brute-force attacks on other user accounts via injecting valid login sessions.

Patch / fix

fixed in 2

fortinet fortiproxy 7.0.8, 7.2.2
fortinet fortios 6.4.13, 7.0.11, 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 5.0

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: no
Technical impact: partial
Assessed: 2 y ago (2024-10-22)

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.7	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C
CNA	3.1	5.0	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Fortinet FortiOS
Fortinet FortiProxy

Classification

Weakness

CWE-307 Improper Restriction of Excessive Authentication Attempts

Technology feeds

Fortinet rss critical rss

References

fortiguard.com /psirt/FG-IR-22-444
vendor-advisory

Sources

CVE List CVE-2022-43947
NVD CVE-2022-43947

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