CVE-2026-126171

HIGHCVSS 7.2/10EPSS 0.58%

Last modified

CVE-2026-126171 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. A use of externally-controlled format string vulnerability in Fortinet FortiAnalyzer 8.0.0 through 8.0.1, FortiAnalyzer 7.6.0 through 7.6.7, FortiAnalyzer 7.4.0 through 7.4.11, FortiAnalyzer 7.2.0 through 7.2.12, FortiAnalyzer Cloud 8.0.1, FortiAnalyzer Cloud 7.6.0 through 7.6.7, FortiAnalyzer Cloud 7.4.1 through 7.4.11, FortiAnalyzer Cloud 7.2.1 through 7.2.12, FortiManager 8.0.0 through 8.0.1, FortiManager 7.6.0 through 7.6.7, FortiManager 7.4.0 through 7.4.11, FortiManager 7.2.0 through 7.2.12, FortiManager Cloud 8.0.1, FortiManager Cloud 7.6.0 through 7.6.7, FortiManager Cloud 7.4.1 through 7.4.11, FortiManager Cloud 7.2.1 through 7.2.12 may allow an authenticated attacker to execute unauthorized commands via specially crafted HTTP request. EPSS estimates a 0.58% chance of exploitation in the next 30 days.

Description

A use of externally-controlled format string vulnerability in Fortinet FortiAnalyzer 8.0.0 through 8.0.1, FortiAnalyzer 7.6.0 through 7.6.7, FortiAnalyzer 7.4.0 through 7.4.11, FortiAnalyzer 7.2.0 through 7.2.12, FortiAnalyzer Cloud 8.0.1, FortiAnalyzer Cloud 7.6.0 through 7.6.7, FortiAnalyzer Cloud 7.4.1 through 7.4.11, FortiAnalyzer Cloud 7.2.1 through 7.2.12, FortiManager 8.0.0 through 8.0.1, FortiManager 7.6.0 through 7.6.7, FortiManager 7.4.0 through 7.4.11, FortiManager 7.2.0 through 7.2.12, FortiManager Cloud 8.0.1, FortiManager Cloud 7.6.0 through 7.6.7, FortiManager Cloud 7.4.1 through 7.4.11, FortiManager Cloud 7.2.1 through 7.2.12 may allow an authenticated attacker to execute unauthorized commands via specially crafted HTTP request

Metrics

EPSS Probability
0.58%

48.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
FortinetFortiManager>= 8.0.0, <= 8.0.1; >= 7.6.0, <= 7.6.7; >= 7.4.0, <= 7.4.11; >= 7.2.0, <= 7.2.12; >= 7.0.0, <= 7.0.16
FortinetFortiAnalyzer>= 8.0.0, <= 8.0.1; >= 7.6.0, <= 7.6.7; >= 7.4.0, <= 7.4.11; >= 7.2.0, <= 7.2.12; >= 7.0.0, <= 7.0.16
FortinetFortiManager Cloud8.0.1; >= 7.6.0, <= 7.6.7; >= 7.4.1, <= 7.4.11; >= 7.2.1, <= 7.2.12; >= 7.0.1, <= 7.0.16
FortinetFortiAnalyzer Cloud8.0.1; >= 7.6.0, <= 7.6.7; >= 7.4.1, <= 7.4.11; >= 7.2.1, <= 7.2.12; >= 7.0.1, <= 7.0.16

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-126171?
A use of externally-controlled format string vulnerability in Fortinet FortiAnalyzer 8.0.0 through 8.0.1, FortiAnalyzer 7.6.0 through 7.6.7, FortiAnalyzer 7.4.0 through 7.4.11, FortiAnalyzer 7.2.0 through 7.2.12, FortiAnalyzer Cloud 8.0.1, FortiAnalyzer Cloud 7.6.0 through 7.6.7, FortiAnalyzer Cloud 7.4.1 through 7.4.11, FortiAnalyzer Cloud 7.2.1 through 7.2.12, FortiManager 8.0.0 through 8.0.1, FortiManager 7.6.0 through 7.6.7, FortiManager 7.4.0 through 7.4.11, FortiManager 7.2.0 through 7.2.12, FortiManager Cloud 8.0.1, FortiManager Cloud 7.6.0 through 7.6.7, FortiManager Cloud 7.4.1 through 7.4.11, FortiManager Cloud 7.2.1 through 7.2.12 may allow an authenticated attacker to execute unauthorized commands via specially crafted HTTP request
How severe is CVE-2026-126171?
CVE-2026-126171 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 0.58% probability of exploitation in the next 30 days.
How do I fix CVE-2026-126171?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST