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CVE-2022-33871A stack-based buffer overflow vulnerability [CWE-121] in FortiWeb version 7.0.1 and earlier, 6.4 all versions, version 6.3.19 and earlier…

Description

A stack-based buffer overflow vulnerability [CWE-121] in FortiWeb version 7.0.1 and earlier, 6.4 all versions, version 6.3.19 and earlier may allow a privileged attacker to execute arbitrary code or commands via specifically crafted CLI `execute backup-local rename` and `execute backup-local show` operations.

Timeline

  1. ID reserved

    By fortinet

  2. · 8 months later

    Published

  3. · 21 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-2022-33871, by who scored it
Scored byCVSSScoreVector
fortinetCNA (assigner)3.1Medium6.3CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C
NVDNVD · Modified3.1High7.2CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.94% · top 39% of all CVEs (13 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.3.

Affected products

  • Fortinet · FortiWeb

    • affected 7.0.0 – ≤ 7.0.1
    • affected 6.4.0 – ≤ 6.4.2
    • affected 6.3.6 – ≤ 6.3.19

What to do

Solution: Please upgrade to FortiWeb version 7.0.2 or above Please upgrade to FortiWeb version 6.3.20 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-2022-33871 badge
[![CVE-2022-33871](https://cveledger.app/badge/CVE-2022-33871.svg)](https://cveledger.app/cve/CVE-2022-33871)

Record last updated .