Vulnerability Intelligence Report
Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability
CVE-2023-27997
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.
CISA KEV
SSVC: Active Exploitation
Automatable
CVSS Base Score
9.2
CRITICAL
Exploitability:3.9
Impact Score:5.9
EPSS Probability:85.69%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-122 ↗Execute unauthorized code or commands
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Fortinet | FortiOS-6K7K | 7.0.10 (affected), 7.0.5 (affected), 6.4.12 (affected), 6.4.10 (affected), 6.4.8 (affected), 6.4.6 (affected), 6.4.2 (affected), 6.2.9 <= 6.2.13 (affected), 6.2.6 <= 6.2.7 (affected), 6.2.4 (affected), 6.0.12 <= 6.0.16 (affected), 6.0.10 (affected) |
| Fortinet | FortiProxy | 7.2.0 <= 7.2.3 (affected), 7.0.0 <= 7.0.9 (affected), 2.0.0 <= 2.0.12 (affected), 1.2.0 <= 1.2.13 (affected), 1.1.0 <= 1.1.6 (affected) |
| Fortinet | FortiOS | 7.2.0 <= 7.2.4 (affected), 7.0.0 <= 7.0.11 (affected), 6.4.0 <= 6.4.12 (affected), 6.2.0 <= 6.2.13 (affected), 6.0.0 <= 6.0.16 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Fortinet, Inc. · Vendor · USA |
| Reserved | 2023-03-09T10:09:33 |
| Published | 2023-06-13T08:41:47 |
| Last Updated | 2026-07-31T03:55:27 |
Community Chatter & Buzz