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TI-2022-20671 Aliases CVE-2022-42472GHSA-2c29-h3hm-8953

HTTP response splitting in Fortinet FortiProxy

Priority LOW 25CWE-113Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

A improper neutralization of crlf sequences in http headers ('http response splitting') vulnerability in Fortinet FortiOS 7.2.0 through 7.2.2, FortiOS 7.0.0 through 7.0.8, FortiOS 6.4.0 through 6.4.12, FortiOS 6.2 all versions, FortiOS 6.0 all versions, FortiProxy 7.2.0 through 7.2.1, FortiProxy 7.0.0 through 7.0.7, FortiProxy 2.0.0 through 2.0.10, FortiProxy 1.2 all versions, FortiProxy 01.02 all versions, FortiProxy 1.1 all versions, FortiProxy 01.01 all versions may allow an authenticated and remote attacker to perform an HTTP request splitting attack which gives attackers control of the remaining headers and body of the response.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00464 40th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FortinetFortiProxy7.2.0 – 7.2.1; 7.0.0 – 7.0.7; 2.0.0 – 2.0.10; 1.2.1 – 1.2.13; 01.02.00; 1.1.4 – 1.1.6; 01.01.00 – 01.01.03—No fix listedCNA
FortinetFortiOS7.2.0 – 7.2.2; 7.0.0 – 7.0.8; 6.4.0 – 6.4.12; 6.2.0 – 6.2.17; 6.0.0 – 6.0.18—No fix listedCNA
  • FortiProxy VendorFortinet Affected 7.2.0 – 7.2.1; 7.0.0 – 7.0.7; 2.0.0 – 2.0.10; 1.2.1 – 1.2.13; 01.02.00; 1.1.4 – 1.1.6; 01.01.00 – 01.01.03 Fixed in — No fix listed CNA
  • FortiOS VendorFortinet Affected 7.2.0 – 7.2.2; 7.0.0 – 7.0.8; 6.4.0 – 6.4.12; 6.2.0 – 6.2.17; 6.0.0 – 6.0.18 Fixed in — No fix listed CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*1.1.0 – 1.1.6; 1.2.0 – 1.2.13; 2.0.0 – 2.0.10; 7.0.0 – 7.0.7VulnerableFortinet
cpe:2.3:a:fortinet:fortiproxy:7.2.0:*:*:*:*:*:*:*7.2.0VulnerableFortinet
cpe:2.3:a:fortinet:fortiproxy:7.2.1:*:*:*:*:*:*:*7.2.1VulnerableFortinet
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*6.0.1 – 6.0.16; 6.2.0 – 6.2.12; 6.4.0 – 6.4.11; 7.0.0 – 7.0.8VulnerableFortinet
cpe:2.3:o:fortinet:fortios:7.2.0:*:*:*:*:*:*:*7.2.0VulnerableFortinet
cpe:2.3:o:fortinet:fortios:7.2.1:*:*:*:*:*:*:*7.2.1VulnerableFortinet
cpe:2.3:o:fortinet:fortios:7.2.2:*:*:*:*:*:*:*7.2.2VulnerableFortinet
  • cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* Versions 1.1.0 – 1.1.6; 1.2.0 – 1.2.13; 2.0.0 – 2.0.10; 7.0.0 – 7.0.7 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiproxy:7.2.0:*:*:*:*:*:*:* Versions 7.2.0 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:fortiproxy:7.2.1:*:*:*:*:*:*:* Versions 7.2.1 Vulnerable ·Fortinet
  • cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* Versions 6.0.1 – 6.0.16; 6.2.0 – 6.2.12; 6.4.0 – 6.4.11; 7.0.0 – 7.0.8 Vulnerable ·Fortinet
  • cpe:2.3:o:fortinet:fortios:7.2.0:*:*:*:*:*:*:* Versions 7.2.0 Vulnerable ·Fortinet
  • cpe:2.3:o:fortinet:fortios:7.2.1:*:*:*:*:*:*:* Versions 7.2.1 Vulnerable ·Fortinet
  • cpe:2.3:o:fortinet:fortios:7.2.2:*:*:*:*:*:*:* Versions 7.2.2 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-42472
  2. 2026-10-03 Alias added: GHSA-2c29-h3hm-8953
  3. 2026-10-22 Title updated · CNA
  4. 2026-10-22 Affected versions changed · CNA

References

Patch 1

  • TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
  • TI-2025-18911 Heap-based buffer overflow in Fortinet FortiSwitchManager KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-36904 Authentication bypass in Fortinet FortiOS KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-15234 A use of externally-controlled format string in Fortinet FortiOS versions 7.4.0 through… KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-14448 Out-of-bounds write in Fortinet FortiOS KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-12585 Heap-based buffer overflow in Fortinet FortiOS-6K7K KEVCVSS 3.1CRITICAL 9.8
See all 276 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences