CVE-2025-62675: Fortinet Header injection in Web Filter warning page
This Fortinet advisory covers CVE-2025-62675 in FortiOS and FortiProxy.
- CVE-2025-62675
Key facts
- Vendor rating
- Low, CVSS 3.4
- CISA KEV
- Not listed (catalogue checked )
- Affected
- FortiOS FortiOS: 7.2 through 8.0 (vendor-listed versions); FortiProxy FortiProxy: 7.2 through 7.6 (vendor-listed versions)
- Fixed in
- FortiOS 7.6: 7.6.5, FortiOS 7.4: migrate to a fixed release, FortiOS 7.2: migrate to a fixed release and 3 more below
- Advisory id
- FG-IR-26-152
- Source published
- Source revised
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
Description
CVSSv3 Score:
3.4
An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability [CWE-113] in FortiOS and FortiProxy may allow an attacker in possession of a valid web filter override token to inject arbitrary headers via tricking a user into clicking on a crafted link.
Revised on 2026-07-14 00:00:00
Text from the source record.
- FortiOS FortiOS: 7.2 through 8.0 (vendor-listed versions)
- FortiProxy FortiProxy: 7.2 through 7.6 (vendor-listed versions)
Official advisory · high-confidence parse· fetched ·verify at source
How to fix CVE-2025-62675
Upgrade to a fixed release named by Fortinet:
- FortiOS 7.6: 7.6.5
- FortiOS 7.4: migrate to a fixed release
- FortiOS 7.2: migrate to a fixed release
- FortiProxy 7.6: 7.6.5
- FortiProxy 7.4: migrate to a fixed release
- FortiProxy 7.2: migrate to a fixed release
Vendor guidance
- Upgrade per the Affected/Solution table: FortiOS 7.6: 7.6.5; FortiOS 7.4: migrate to a fixed release; FortiOS 7.2: migrate to a fixed release; FortiProxy 7.6: 7.6.5; FortiProxy 7.4: migrate to a fixed release; ….
Support dates for the fixed release lines
- Fortinet FortiOS 7.6: support ends
- Fortinet FortiOS 7.4: support ends
- Fortinet FortiOS 7.2: support ended
More Fortinet advisories
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