CVE-2025-62675
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,
02 Description
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,
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.27% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 19.1% of scored records. A rank, not a probability.
- NVD base score
- 4.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-09-29.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-07-14 15:15Z3 MO AGO
- Last updated
- 2026-10-15 01:09Z15 DAYS AGO
- Reserved
- 2025-10-20
- Assigning CNA
- fortinet
- Record state
- PUBLISHED
- Severity
- Low (CVSS 3.4)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:N/E:P/RL:O/RC:C
- Weaknesses
- CWE-113Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')Variant
- Data version
- 5.2
- Document digest
- a66aecfe4426e9e28d82b8d290eac392252459548f2754e09b3e8f08189217da
05 Affected products
06 References
- fortiguard.fortinet.comhttps://fortiguard.fortinet.com/psirt/FG-IR-26-152
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-864900.html
07 Remediation
Fortinet remediated this issue in FortiSASE version 25.4.b and hence customers do not need to perform any action. Upgrade to FortiProxy version 7.6.5 or above Upgrade to FortiOS version 8.0.0 or above Upgrade to FortiOS version 7.6.5 or above