CVE-2024-21762 (GCVE-0-2024-21762)

Vulnerability from cvelistv5 – Published: 2024-02-09 08:14 – Updated: 2026-08-04 03:55
VLAI CISA Previdian
Summary
A out-of-bounds write in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, 6.0.0 through 6.0.17, FortiProxy versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.8, 7.0.0 through 7.0.14, 2.0.0 through 2.0.13, 1.2.0 through 1.2.13, 1.1.0 through 1.1.6, 1.0.0 through 1.0.7 allows attacker to execute unauthorized code or commands via specifically crafted requests
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-08 00:00 UTC
CWE
  • CWE-787 - Execute unauthorized code or commands
Impacted products
Vendor Product Version
Fortinet FortiProxy Affected: 7.4.0 , ≤ 7.4.2 (semver)
Affected: 7.2.0 , ≤ 7.2.8 (semver)
Affected: 7.0.0 , ≤ 7.0.14 (semver)
Affected: 2.0.0 , ≤ 2.0.13 (semver)
Affected: 1.2.0 , ≤ 1.2.13 (semver)
Affected: 1.1.0 , ≤ 1.1.6 (semver)
Affected: 1.0.0 , ≤ 1.0.7 (semver)
Create a notification for this product.
Fortinet FortiOS Affected: 7.4.0 , ≤ 7.4.2 (semver)
Affected: 7.2.0 , ≤ 7.2.6 (semver)
Affected: 7.0.0 , ≤ 7.0.13 (semver)
Affected: 6.4.0 , ≤ 6.4.14 (semver)
Affected: 6.2.0 , ≤ 6.2.15 (semver)
Affected: 6.0.0 , ≤ 6.0.17 (semver)
Create a notification for this product.
fortinet fortiproxy Affected: 1.0.0 , < 2.0.14 (custom)
    cpe:2.3:a:fortinet:fortiproxy:1.0.0:*:*:*:*:*:*:*
Create a notification for this product.
fortinet fortiproxy Affected: 7.0.0 , < 7.0.15 (custom)
    cpe:2.3:a:fortinet:fortiproxy:7.0.0:*:*:*:*:*:*:*
Create a notification for this product.
fortinet fortiproxy Affected: 7.2.0 , < 7.2.9 (custom)
    cpe:2.3:a:fortinet:fortiproxy:7.2.0:*:*:*:*:*:*:*
Create a notification for this product.
fortinet fortiproxy Affected: 7.4.0 , < 7.4.3 (custom)
    cpe:2.3:a:fortinet:fortiproxy:7.4.0:*:*:*:*:*:*:*
Create a notification for this product.
fortinet fortios Affected: 6.0.0 , < 6.2.16 (custom)
    cpe:2.3:o:fortinet:fortios:6.0.0:*:*:*:*:*:*:*
Create a notification for this product.
fortinet fortios Affected: 6.4.0 , < 6.4.15 (custom)
    cpe:2.3:o:fortinet:fortios:6.4.0:*:*:*:*:*:*:*
Create a notification for this product.
fortinet fortios Affected: 7.0.0 , < 7.0.14 (custom)
    cpe:2.3:o:fortinet:fortios:7.0.0:*:*:*:*:*:*:*
Create a notification for this product.
fortinet fortios Affected: 7.2.0 , < 7.2.7 (custom)
    cpe:2.3:o:fortinet:fortios:7.2.0:*:*:*:*:*:*:*
Create a notification for this product.
fortinet fortios Affected: 7.4.0 , < 7.4.3 (custom)
    cpe:2.3:o:fortinet:fortios:7.4.0:*:*:*:*:*:*:*
Create a notification for this product.
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2024-21762

Status: Confirmed

Status Updated: 2024-02-09 01:00 CET

Exploited: Yes


Timestamps
First Seen: 2024-02-09
Asserted: 2024-02-09

Scope
Notes: Fortinet FortiOS Out-of-Bound Write Vulnerability | Affected: Fortinet / FortiOS | Description: Fortinet FortiOS contains an out-of-bound write vulnerability that allows a remote unauthenticated attacker to execute code or commands via specially crafted HTTP requests. | Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. | Due date: 2024-02-16 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://fortiguard.fortinet.com/psirt/FG-IR-24-015 ; https://nvd.nist.gov/vuln/detail/CVE-2024-21762

Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev


Details
Cwes CWE-787
Feed CISA Known Exploited Vulnerabilities Catalog
Product FortiOS
Due Date 2024-02-16
Date Added 2024-02-09
Vendorproject Fortinet
Vulnerabilityname Fortinet FortiOS Out-of-Bound Write Vulnerability
Knownransomwarecampaignuse Known

References

Created: 2026-10-02 08:09 CEST | Updated: 2026-10-02 08:09 CEST
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2024-21762

Status: Confirmed

Status Updated: 2024-02-09 01:00 CET

Exploited: Yes


Timestamps
First Seen: 2024-02-09
Asserted: 2024-02-09

Scope
Notes: A out-of-bounds write in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, 6.4.0 through 6.4.14, 6.2.0... | Affected: Fortinet / FortiProxy, FortiOS | CVSS: 9.6 (CRITICAL) | EPSS: 0.83428 | Used in malware: yes | Not yet in CISA KEV: False

Evidence

Type: Public Report

Signal: Confirmed Compromise

Confidence: 70%

Source: previdian


Details
Feed Previdian (previdian.com)
Title A out-of-bounds write in Fortinet FortiOS versions 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, 6.4.0 through 6.4.14, 6.2.0...
Cve Id CVE-2024-21762
Vendor Fortinet
Ghsa Id None
Product FortiProxy, FortiOS
Added Date 2024-02-09T00:00:00.000Z
Cvss Score 9.6
Epss Score 0.83428
Previous Ids
Cvss Severity CRITICAL
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.99675
Used In Malware yes
Vulnerability Id CVE-2024-21762
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False

References

Created: 2026-10-02 09:11 CEST | Updated: 2026-10-02 09:11 CEST
Show details on NVD website

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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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