CVE-2025-62826

published 2026-07-14

CVE-2025-62826: An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability [CWE-113] vulnerability in Fortinet FortiOS 7.6.0…

Priority P4 24 medium 4.3 CVSS 3.1

AV N AC L PR N UI R S U C N I L A N

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.

Affected

22 ranges

Vendor	Product	Version range	Fixed in
fortinet	fortinet	—	—
fortinet	fortios	—	—
fortinet	fortios	6.4.0 – 6.4.16	—
fortinet	fortios	7.0.0 – 7.0.19	—
fortinet	fortios	>= 7.2.0 < 7.6.5	7.6.5
fortinet	fortios	7.2.0 – 7.2.13	—
fortinet	fortios	7.4.0 – 7.4.8	—
fortinet	fortios	7.6.0 – 7.6.2	—
fortinet	fortipam	—	—
fortinet	fortipam	—	—
fortinet	fortipam	1.0.0 – 1.0.3	—
fortinet	fortipam	1.1.0 – 1.1.2	—
fortinet	fortipam	1.3.0 – 1.3.1	—
fortinet	fortipam	1.4.0 – 1.4.3	—
fortinet	fortipam	1.5.0 – 1.5.1	—
fortinet	fortipam	1.6.0 – 1.6.2	—
fortinet	fortiproxy	—	—
fortinet	fortiproxy	7.0.0 – 7.0.23	—
fortinet	fortiproxy	>= 7.2.0 < 7.6.5	7.6.5
fortinet	fortiproxy	7.2.0 – 7.2.16	—
fortinet	fortiproxy	7.4.0 – 7.4.14	—
fortinet	fortiproxy	7.6.0 – 7.6.4	—

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-113