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On CISA KEVCritical

CVE-2023-34993FortiWLM OS Command Injection

A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiWLM version 8.6.0 through 8.6.5 and 8.5.0 through 8.5.4 allows attacker to execute unauthorized code or commands via specifically crafted http get request parameters.

Published Oct 11, 2023 · Updated Sep 19, 2024

Key Facts

Patch immediately
  • CVE-2023-34993 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting FortiWLM (Fortinet).
  • It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Apr 14, 2024. No public exploit code is known.
  • EPSS estimates a 21% probability of exploitation in the next 30 days.
  • Fixed versions are available, including FortiWLM <=8.5.4, FortiWLM 8.5.4.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Scores

CVSS v3.1

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

21%

Higher than 97.5% of all scored CVEs

Exploit maturity

Exploited (KEV)

ATLAS score

55/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Apr 14, 2024

186 days after publication

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Exploited (KEV)

Public exploit code

0

Proof-of-concept links

In-the-wild evidence

10

Reports of active use

Description

A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiWLM version 8.6.0 through 8.6.5 and 8.5.0 through 8.5.4 allows attacker to execute unauthorized code or commands via specifically crafted http get request parameters.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
CIRCL KEVApr 14, 2024n/aNot reported
Industry KEV feedApr 14, 2024n/aNot reported

Affected Products

2 affected entries in total
ProductAffected versionsFixed in
FortiWLMFortinet>= 8.6.08.5.4

Patched Releases

FortiWLM

<=8.5.4

Timeline

  1. Publicly disclosed

    Oct 11, 2023

  2. Added to CIRCL KEV

    Apr 14, 2024

  3. Added to Industry KEV feed

    Apr 14, 2024

  4. Last updated

    Sep 19, 2024

Weakness Type

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

References

15 more references in the full CVE brief

FAQ

Common Questions.

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More vulnerabilities

Figures as of Oct 23, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

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