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CVE-2023-33299A deserialization of untrusted data in Fortinet FortiNAC below 7.2.1, below 9.4.3, below 9.2.8 and all earlier versions of 8.x allows…

Description

A deserialization of untrusted data in Fortinet FortiNAC below 7.2.1, below 9.4.3, below 9.2.8 and all earlier versions of 8.x allows attacker to execute unauthorized code or commands via specifically crafted request on inter-server communication port. Note FortiNAC versions 8.x will not be fixed.

Timeline

  1. ID reserved

    By fortinet

  2. · 32 days later

    Published

  3. · 16 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-2023-33299, by who scored it
Scored byCVSSScoreVector
fortinetCNA (assigner)3.1Critical9.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:X/RC:C
NVDNVD · Modified3.1Critical9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
24.3% · top 2.1% of all CVEs (12 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.6.

Affected products

  • Fortinet · FortiNAC

    • affected 9.4.0 – ≤ 9.4.2
    • affected 9.2.0 – ≤ 9.2.7
    • affected 9.1.0 – ≤ 9.1.9
    • affected 8.8.0 – ≤ 8.8.11
    • affected 8.7.0 – ≤ 8.7.6
    • affected 8.6.0 – ≤ 8.6.5
    • affected 8.5.0 – ≤ 8.5.4
    • affected 8.3.7
    • affected 7.2.0 – ≤ 7.2.1

What to do

Solution: Please upgrade to FortiNAC version 9.4.3 or above Please upgrade to FortiNAC version 9.2.8 or above Please upgrade to FortiNAC version 9.1.10 or above Please upgrade to FortiNAC version 7.2.2 or above

References

References1

Sources

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

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Record last updated .