CVE-2023-27997
Fortinet · published 2023-06-13
Source record Collected from the National Vulnerability Database (NVD)
CISA Known Exploited Vulnerabilities
CISA lists this CVE as known exploited (added 2023-06-13).
- CISA's name for it: Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability
- CISA's description: Fortinet 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.
- Known ransomware campaign use, per CISA: Known
Source: CISA KEV catalog (CC0 1.0).
Description
Description by Fortinet, Inc. via the CVE Program.
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.
Status at the source
- NVD status: Analyzed
Affected products, as the source lists them
| Vendor | Product | 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 and earlier: affected 6.2.6 – 6.2.7 and earlier: affected 6.2.4: affected 6.0.12 – 6.0.16 and earlier: affected 6.0.10: affected |
| Fortinet | FortiProxy | 7.2.0 – 7.2.3 and earlier: affected 7.0.0 – 7.0.9 and earlier: affected 2.0.0 – 2.0.12 and earlier: affected 1.2.0 – 1.2.13 and earlier: affected 1.1.0 – 1.1.6 and earlier: affected |
| Fortinet | FortiOS | 7.2.0 – 7.2.4 and earlier: affected 7.0.0 – 7.0.11 and earlier: affected 6.4.0 – 6.4.12 and earlier: affected 6.2.0 – 6.2.13 and earlier: affected 6.0.0 – 6.0.16 and earlier: affected |
Products named in NVD's CPE match criteria (2)
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 3.1: 9.8 CRITICAL — as published by Fortinet, Inc. (Secondary)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 3.1: 9.8 CRITICAL — as published by NIST (Primary)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - SSVC — CISA's assessment (SSVC 2.0.3, CISA Coordinator): Exploitation: active · Automatable: yes · Technical impact: total
DeSpy does not score records. These are the sources' own values.
Weaknesses
Sources
References the source lists
- https://fortiguard.com/psirt/FG-IR-23-097
- https://fortiguard.com/psirt/FG-IR-23-097
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27997
Source dates: published 2023-06-13, last changed 2026-07-31. DeSpy's copy of this version is dated 2026-09-28.
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