CVE-2026-71407

🔶 medium

Summary

A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiOS 7.6.1 through 7.6.6 may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit proxy is configured with Kerberos authentication and SOCKS enabled.

CVSS Score

5.6

Medium

EPSS Score

0.5

Exploit Probability

Published Date

2026-08-12

First Seen: 2026-08-13

📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 31.4% of all 365,890 vulnerabilities in our database.

#250,892

Below average severity

Severity Percentile

🎯 CISA SSVC Assessment Updated: Aug 12, 2026

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Total

Complete system compromise possible

SSVC data provided by CISA

Last Modified 2026-09-08

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

CWE IDs (Weakness Types)

CWE-121

📦 Affected Products 1

Vendor	Product	Status	Affected Versions
fortinet	fortios	Affected	> 7.6.1 < 7.6.7

🔗 References 1

https://fortiguard.fortinet.com/psirt/FG-IR-26-161

Vendor Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-71408	🔶 medium	5.3	0.5	A allocation of resources without limits or throttling vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6, FortiOS 7....	2026-08-12
CVE-2025-43892	🔶 medium	4.3	0.4	A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all v...	2026-07-14
CVE-2025-62675	ℹ️ low	3.4	0.3	An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability [CWE-113] vulnera...	2026-07-14
CVE-2025-62826	ℹ️ low	3.1	0.4	An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability [CWE-113] vulnera...	2026-07-14
CVE-2026-23573	🔶 medium	6.1	0.3	An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] vulnerabi...	2026-07-14
CVE-2026-59837	🔶 medium	6.6	0.7	A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.4.0 through 7.4.1, FortiOS 7.2 all versions, FortiPAM ...	2026-07-14

These CVEs affect the same products