FortiOS/FortiProxy CRLF Header Injection before 7.6.5
CVE-2025-62675 Published on July 14, 2026
An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability [CWE-113] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4 all versions, FortiOS 7.2 all versions, FortiProxy 7.6.0 through 7.6.4, FortiProxy 7.4 all versions, FortiProxy 7.2 all versions 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.
Vulnerability Analysis
CVE-2025-62675 can be exploited with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
What is a HTTP Response Splitting Vulnerability?
The software receives data from an upstream component, but does not neutralize or incorrectly neutralizes CR and LF characters before the data is included in outgoing HTTP headers.
CVE-2025-62675 has been classified to as a HTTP Response Splitting vulnerability or weakness.
Products Associated with CVE-2025-62675
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Affected Versions
Fortinet FortiOS:- Version 7.6.0, <= 7.6.4 is affected.
- Version 7.4.0, <= 7.4.12 is affected.
- Version 7.2.0, <= 7.2.13 is affected.
- Version 7.0.0, <= 7.0.19 is affected.
- Version 6.4.0, <= 6.4.16 is affected.
- Version 1.7.0 is affected.
- Version 1.6.0, <= 1.6.2 is affected.
- Version 1.5.0, <= 1.5.1 is affected.
- Version 1.4.0, <= 1.4.3 is affected.
- Version 1.3.0, <= 1.3.1 is affected.
- Version 1.2.0 is affected.
- Version 1.1.0, <= 1.1.2 is affected.
- Version 1.0.0, <= 1.0.3 is affected.
- Version 7.6.0, <= 7.6.4 is affected.
- Version 7.4.0, <= 7.4.14 is affected.
- Version 7.2.0, <= 7.2.16 is affected.
- Version 7.0.0, <= 7.0.23 is affected.