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CVE-2022-42471

An improper neutralization of CRLF sequences in HTTP headers ('HTTP Response Splitting') vulnerability [CWE-113] In FortiWeb version 7.0.0…

Medium5.3EPSS 0.49%
Published
Updated
Reserved
Assigned by
fortinet

Description

An improper neutralization of CRLF sequences in HTTP headers ('HTTP Response Splitting') vulnerability [CWE-113] In FortiWeb version 7.0.0 through 7.0.2, FortiWeb version 6.4.0 through 6.4.2, FortiWeb version 6.3.6 through 6.3.20 may allow an authenticated and remote attacker to inject arbitrary headers.

Scores

CVSS scores of CVE-2022-42471, by who scored it
Scored byCVSSScoreVector
fortinetCNA (assigner)3.1Medium5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:F/RL:U/RC:C
NVDNVD · Modified3.1Medium5.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
EPSS (exploitation in 30 days)
0.49% · top 57% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.

Weakness

Affected products

  • Fortinet · FortiWeb

    • affected 7.0.0 – ≤ 7.0.2
    • affected 6.4.0 – ≤ 6.4.2
    • affected 6.3.6 – ≤ 6.3.21

What to do

Solution: Please upgrade to FortiWeb version 7.2.0 or above Please upgrade to FortiWeb version 7.0.3 or above

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .