CVE-2021-43074

At a glance

Severity
MEDIUM 4.1
EPSS
EPSS 0.29 % · percentile 21 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
fortinet
NVD status
Modified

Description

An improper verification of cryptographic signature vulnerability [CWE-347] in FortiWeb 6.4 all versions, 6.3.16 and below, 6.2 all versions, 6.1 all versions, 6.0 all versions; FortiOS 7.0.3 and below, 6.4.8 and below, 6.2 all versions, 6.0 all versions; FortiSwitch 7.0.3 and below, 6.4.10 and below, 6.2 all versions, 6.0 all versions; FortiProxy 7.0.1 and below, 2.0.7 and below, 1.2 all versions, 1.1 all versions, 1.0 all versions may allow an attacker to decrypt portions of the administrative session management cookie if able to intercept the latter.

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 4.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:U/RC:Cfortinet
CVSS 3.1MEDIUM 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NNVD · psirt@fortinet.com (Secondary)
CVSS 3.1MEDIUM 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NNVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Fortinet · FortiSwitchaffected 7.0.0 ≤ 7.0.3 ; affected 6.4.0 ≤ 6.4.10 ; affected 6.2.0 ≤ 6.2.7 ; affected 6.0.0 ≤ 6.0.7
Fortinet · FortiWebaffected 6.4.0 ≤ 6.4.2 ; affected 6.3.0 ≤ 6.3.16 ; affected 6.2.0 ≤ 6.2.7 ; affected 6.1.0 ≤ 6.1.3 ; affected 6.0.0 ≤ 6.0.8
Fortinet · FortiProxyaffected 7.0.0 ≤ 7.0.1 ; affected 2.0.0 ≤ 2.0.7 ; affected 1.2.0 ≤ 1.2.13 ; affected 1.1.0 ≤ 1.1.6 ; affected 1.0.0 ≤ 1.0.7
Fortinet · FortiOSaffected 7.0.0 ≤ 7.0.3 ; affected 6.4.0 ≤ 6.4.8 ; affected 6.2.0 ≤ 6.2.12 ; affected 6.0.0 ≤ 6.0.16

References

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD