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5.9
CVE-2026-59837PATCHED
Fortinet · FortiPAM

CVE-2026-59837: A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.4.0 through 7.4.1, FortiOS 7.2 all versions, FortiPAM

Description

A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.4.0 through 7.4.1, FortiOS 7.2 all versions, FortiPAM 1.8.0 through 1.8.2, FortiPAM 1.7 all versions, FortiPAM 1.6 all versions, FortiPAM 1.5 all versions, FortiPAM 1.4 all versions, FortiPAM 1.3 all versions, FortiPAM 1.2 all versions, FortiPAM 1.1 all versions, FortiPAM 1.0 all versions, FortiProxy 7.4.0 through 7.4.13, FortiProxy 7.2 all versions may allow a privileged authenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands via crafted HTTP requests.

Affected Products

VendorProductVersions
FortinetFortiPAM1.8.0, 1.7.0, 1.6.0, 1.5.0, 1.4.0, 1.3.0, 1.2.0, 1.1.0, 1.0.0, 26.1.1, 7.4.0, 7.2.0, 7.4.0, 7.2.0, 7.0.0, 6.4.0

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
fortinetfortisasemitre_affected90%
fortinetfortiproxymitre_affected90%
fortinetfortiosmitre_affected90%

References

  • https://fortiguard.fortinet.com/psirt/FG-IR-26-148

Related News (4 articles)

Tier B
BSI Advisories17d ago
[NEU] [mittel] Fortinet FortiOS und FortiProxy: Mehrere Schwachstellen
→ No new info (linked only)
Tier B
CERT-FR17d ago
Multiples vulnérabilités dans les produits Fortinet (15 juillet 2026)
→ No new info (linked only)
Tier C
VulDB18d ago
CVE-2026-59837 | Fortinet FortiOS/FortiPAM/FortiProxy HTTP stack-based overflow
→ No new info (linked only)
Tier A
Fortinet PSIRT18d ago
Stack Buffer Overflow in Log Report
→ No new info (linked only)
CVSS 3.15.9 MEDIUM
VectorCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CISA KEV❌ No
Actively exploited❌ No
Patch available
7.4.2
CWECWE-121
PublishedJul 14, 2026
Last enriched18d agov2
Trending Score7
Source articles4
Independent4
Info Completeness9/14
Missing: epss, kev, exploit, iocs, mitre_attack

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Related CVEs (5)

CRITICALCVE-2026-25089EXP
CVE-2026-25089: A improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet F
Trending: 83
HIGHCVE-2026-59835
CVE-2026-59835: A exposure of resource to wrong sphere vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.2, FortiSandbox 4.4.3 th
Trending: 9
MEDIUMCVE-2026-23573
CVE-2026-23573: An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerabi
Trending: 6
MEDIUMCVE-2026-59839
CVE-2026-59839: A improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiOS 7.6.0
Trending: 6
HIGHCVE-2025-53379EXP
CVE-2025-53379: A out-of-bounds read vulnerability in Fortinet FortiAuthenticator 6.6.0 through 6.6.2, FortiAuthenticator 6.5 all versio
Trending: 6

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Verification

State: verified
Confidence: 0%

Vulnerability Timeline

CVE Published
Jul 14, 2026
Discovered by ZDM
Jul 14, 2026
Updated: affectedVersions, patchAvailable
Jul 14, 2026
Patch Available
Jul 14, 2026

Version History

v2
Last enriched 18d ago
v2Tier A18d ago

Added affected versions 8.0 and 7.6, and updated patch available to 7.4.2.

affectedVersionspatchAvailable
via Fortinet PSIRT
v118d ago

Initial creation