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CVE-2023-36639A use of externally-controlled format string in Fortinet FortiProxy versions 7.2.0 through 7.2.4, 7.0.0 through 7.0.10, FortiOS versions…

Description

A use of externally-controlled format string in Fortinet FortiProxy versions 7.2.0 through 7.2.4, 7.0.0 through 7.0.10, FortiOS versions 7.4.0, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.12, 6.2.0 through 6.2.15, 6.0.0 through 6.0.17, FortiPAM versions 1.0.0 through 1.0.3 allows attacker to execute unauthorized code or commands via specially crafted API requests.

Timeline

  1. ID reserved

    By fortinet

  2. · 6 months later

    Published

  3. · 8 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-36639, by who scored it
Scored byCVSSScoreVector
fortinetCNA (assigner)3.1High7.0CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:U/RC:C
NVDNVD · Modified3.1High8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
1.1% · top 35% of all CVEs (12 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.0.

Affected products

  • Fortinet · FortiOS

    • affected 7.4.0
    • affected 7.2.0 – ≤ 7.2.4
    • affected 7.0.0 – ≤ 7.0.11
    • affected 6.4.0 – ≤ 6.4.12
    • affected 6.2.0 – ≤ 6.2.15
    • affected 6.0.0 – ≤ 6.0.17

  • Fortinet · FortiPAM

    • affected 1.1.0
    • affected 1.0.0 – ≤ 1.0.3

  • Fortinet · FortiProxy

    • affected 7.2.0 – ≤ 7.2.4
    • affected 7.0.0 – ≤ 7.0.10

What to do

Solution: Please upgrade to FortiOS version 7.4.1 or above Please upgrade to FortiOS version 7.2.5 or above Please upgrade to FortiOS version 7.0.12 or above Please upgrade to FortiOS version 6.4.13 or above Please upgrade to FortiOS version 6.2.16 or above Please upgrade to FortiPAM version 1.2.0 or above Please upgrade to FortiPAM version 1.1.1 or above Please upgrade to FortiProxy version 7.4.0 or above Please upgrade to FortiProxy version 7.2.5 or above Please upgrade to FortiProxy version 7.0.11 or above Please upgrade to FortiSASE version 23.3 or above

References

References1

Sources

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

Badge for a README or a ticket

CVE-2023-36639 badge
[![CVE-2023-36639](https://cveledger.app/badge/CVE-2023-36639.svg)](https://cveledger.app/cve/CVE-2023-36639)

Record last updated .