Out of bounds read in GUI

unknownCVE-2025-53379

CVSSv3 Score: 7.0 An out of bounds read [CWE-125] vulnerability in FortiAuthenticator may allow a remote unauthenticated attacker to retrieve sensitive information via a specially crafted request. Revised on 2026-07-14 00:00:00

CSIRTS triage

vendor: Fortinet product: FortiAuthenticator Information disclosure

What: A remote unauthenticated attacker may retrieve sensitive information via a specially crafted request.
Who is affected: Deployments of FortiAuthenticator.
Urgency: Remediation is urgent due to the risk of sensitive data exposure.
Action: Apply the latest security updates for FortiAuthenticator.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Fortinet FortiGuard PSIRT (INTL · vendor-psirt · site)
Severity: unknown
Published: 2026-07-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://fortiguard.fortinet.com/psirt/FG-IR-26-146

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2025-533790.39% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 31% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-53379	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Out of bounds

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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