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01 Record

CVE-2023-40721

A use of externally-controlled format string vulnerability [CWE-134] vulnerability in Fortinet allows a privileged attacker to execute arbitrary code or commands via specially crafted requests.

MediumPUBLISHEDCNA: fortinet
CNA base score6.3 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C

02 Description

A use of externally-controlled format string vulnerability [CWE-134] vulnerability in Fortinet allows a privileged attacker to execute arbitrary code or commands via specially crafted requests.

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.24% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 15.2% of scored records. A rank, not a probability.
NVD base score
6.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-02-11 16:09Z1 YR AGO
Last updated
2026-01-14 14:15Z9 MO AGO
Reserved
2023-08-21
Assigning CNA
fortinet
Record state
PUBLISHED
Severity
Medium (CVSS 6.3)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C
Weaknesses
  • CWE-134Use of Externally-Controlled Format StringBase
Data version
5.2
Document digest
d9a82c97c2a04efdb8a4aa63bb9c81e463bfa46c6d146fe3e1f0d02037769fd1

05 Affected products

VendorProductVersionsPlatforms
FortinetFortiPAM1.1.0 to 1.1.2, 1.0.0 to 1.0.3—
FortinetFortiSwitchManager7.2.0 to 7.2.2, 7.0.0 to 7.0.2—
FortinetFortiOS7.4.0, 7.2.0 to 7.2.5, 7.0.0 to 7.0.13, 6.4.0 to 6.4.16, 6.2.0 to 6.2.17—
FortinetFortiProxy7.4.0, 7.2.0 to 7.2.6, 7.0.0 to 7.0.14, 2.0.0 to 2.0.14, 1.2.0 to 1.2.13—

06 References

07 Remediation

Please upgrade to FortiOS version 7.4.2 or above Please upgrade to FortiOS version 7.2.7 or above Please upgrade to FortiOS version 7.0.14 or above Please upgrade to FortiPAM version 1.2.0 or above Please upgrade to FortiSwitchManager version 7.2.3 or above Please upgrade to FortiSwitchManager version 7.0.3 or above Please upgrade to FortiProxy version 7.4.1 or above Please upgrade to FortiProxy version 7.2.8 or above Please upgrade to FortiProxy version 7.0.15 or above