9.8
CVE-2023-27997
- EPSS 90.23%
- Published 13.06.2023 09:15:16
- Last modified 10.03.2025 20:40:57
- Source psirt@fortinet.com
- Teams watchlist Login
- Open Login
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.
Data is provided by the National Vulnerability Database (NVD)
Fortinet ≫ Fortiproxy Version >= 1.1.0 <= 1.1.6
Fortinet ≫ Fortiproxy Version >= 1.2.0 <= 1.2.13
Fortinet ≫ Fortiproxy Version >= 2.0.0 <= 2.0.12
Fortinet ≫ Fortiproxy Version >= 7.0.0 <= 7.0.9
Fortinet ≫ Fortiproxy Version >= 7.2.0 <= 7.2.3
13.06.2023: CISA Known Exploited Vulnerabilities (KEV) Catalog
Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability
VulnerabilityFortinet FortiOS and FortiProxy SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthenticated, remote attacker to execute code or commands via specifically crafted requests.
DescriptionApply updates per vendor instructions.
Required actions| Type | Source | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 90.23% | 0.996 |
| Source | Base Score | Exploit Score | Impact Score | Vector string |
|---|---|---|---|---|
| nvd@nist.gov | 9.8 | 3.9 | 5.9 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
|
| psirt@fortinet.com | 9.8 | 3.9 | 5.9 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
|
CWE-122 Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
CWE-787 Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.