[NEW] [low] Fortinet FortiProxy and FortiOS: Multiple vulnerabilities
A remote, anonymous attacker can exploit multiple vulnerabilities in Fortinet FortiOS and Fortinet FortiProxy to bypass security measures, manipulate data, and disclose information.
CSIRTS triage
- What
- Multiple vulnerabilities allow remote attackers to bypass security measures and manipulate data.
- Who is affected
- Users of Fortinet FortiOS and FortiProxy.
- Urgency
- Remediation is low priority as the severity is low and exploitation is not confirmed.
- Action
- Monitor for updates from Fortinet regarding these vulnerabilities.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2329
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-2025-626750.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all scored CVEs.
- Low exploitation riskCVE-2025-628260.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all scored CVEs.
- Low exploitation riskCVE-2025-438920.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all scored CVEs.
- Low exploitation riskCVE-2026-598400.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2025-62675 | coverage & exploitation status | NVD · CVE.org |
| CVE-2025-62826 | coverage & exploitation status | NVD · CVE.org |
| CVE-2025-43892 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-59840 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownMultiple vulnerabilities in Fortinet products (July 15, 2026)cert-fr-avis
- mediumCVE-2026-59840: A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 throug…nvd
- lowCVE-2025-62826: An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulne…nvd
- lowCVE-2025-62675: An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulne…nvd
- mediumCVE-2025-43892: A buffer over-read vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 throug…nvd
- unknownHeader injection in captive portal authentication formfortinet
- unknownBuffer overread in authd and wad daemonfortinet
- unknownHeader injection in Web Filter warning pagefortinet
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