CVE-2025-62826
mediumpriority · track · 17EPSS 0.004 · 30 %ileDEEURUUSEPSS · scored 2026-10-21
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 able to intercept and modify a user's captive portal authentication request to inject arbitrary headers via crafted HTTP requests.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedRUGGEDCOM APE1808siemens_psirt
Update Fortigate NGFW to V7.6.6 or later following the secure update recommendation procedure. Contact customer support to receive detailed information
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.1–4.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (36)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- SSA-864900SSA-864900: Multiple Vulnerabilities in Fortigate NGFW before V7.6.6 on RUGGEDCOM APE1808 Devices2025-05-13csaf · siemens_psirtDE
Fortinet has published information on vulnerabilities in FortiOS. This advisory lists the related Siemens Industrial products. Siemens has released a new version for RUGGEDCOM APE1808 and recommends to update to the latest version.
- WID-SEC-W-2026-2329Fortinet FortiProxy und FortiOS: Mehrere SchwachstellenDeutsch2026-07-14csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Fortinet FortiOS und Fortinet FortiProxy ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren und Informationen offenzulegen.
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
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