CVE-2023-27997 - CVE House
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Status published Critical CVE-2023-27997

A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4...

Vulnerability Description

A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below, version 6.0.16 and below and FortiProxy version 7.2.3 and below, version 7.0.9 and below, version 2.0.12 and below, version 1.2 all versions, version 1.1 all versions SSL-VPN may allow a remote attacker to execute arbitrary code or commands via specifically crafted requests.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

FortiOS-6K7K, FortiProxy, FortiOS
Vulnerable Versions:
7.0.10, 7.0.5, 6.4.12, 6.4.10, 6.4.8, 6.4.6, 6.4.2, 6.2.9, 6.2.6, 6.2.4, 6.0.12, 6.0.10, 7.2.0, 7.0.0, 2.0.0, 1.2.0, 1.1.0, 6.4.0, 6.2.0, 6.0.0

Timeline

Official Publish: June 13th, 2023
Last Modified: October 21st, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:X/RC:R

Weaknesses (CWE)

CWE-122

MITRE ATT&CK TTPs

T1203 Exploitation for Client Execution
Execution
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1055 Process Injection
Defense Evasion