FortiOS 5.0.x before 5.0.12 and 5.2.x before 5.2.4 supports anonymous, export, RC4, and…
Priority LOW 31CWE-310Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
FortiOS 5.0.x before 5.0.12 and 5.2.x before 5.2.4 supports anonymous, export, RC4, and possibly other weak ciphers when using TLS to connect to FortiGuard servers, which allows man-in-the-middle attackers to spoof TLS content by modifying packets.
Why it matters now
EPSS 0.01454 73rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 16
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:fortinet:fortios:5.0.0:*:*:*:*:*:*:* | 5.0.0 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:5.0.1:*:*:*:*:*:*:* | 5.0.1 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:5.0.2:*:*:*:*:*:*:* | 5.0.2 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:5.0.3:*:*:*:*:*:*:* | 5.0.3 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:5.0.4:*:*:*:*:*:*:* | 5.0.4 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:5.0.5:*:*:*:*:*:*:* | 5.0.5 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:5.0.6:*:*:*:*:*:*:* | 5.0.6 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:5.0.7:*:*:*:*:*:*:* | 5.0.7 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:5.0.8:*:*:*:*:*:*:* | 5.0.8 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:5.0.9:*:*:*:*:*:*:* | 5.0.9 | Vulnerable | Fortinet |
- cpe:2.3:o:fortinet:fortios:5.0.0:*:*:*:*:*:*:* Versions 5.0.0 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:5.0.1:*:*:*:*:*:*:* Versions 5.0.1 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:5.0.2:*:*:*:*:*:*:* Versions 5.0.2 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:5.0.3:*:*:*:*:*:*:* Versions 5.0.3 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:5.0.4:*:*:*:*:*:*:* Versions 5.0.4 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:5.0.5:*:*:*:*:*:*:* Versions 5.0.5 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:5.0.6:*:*:*:*:*:*:* Versions 5.0.6 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:5.0.7:*:*:*:*:*:*:* Versions 5.0.7 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:5.0.8:*:*:*:*:*:*:* Versions 5.0.8 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:5.0.9:*:*:*:*:*:*:* Versions 5.0.9 Vulnerable ·Fortinet
Show 6 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:fortinet:fortios:5.0.10:*:*:*:*:*:*:* | 5.0.10 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:5.0.11:*:*:*:*:*:*:* | 5.0.11 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:5.2.0:*:*:*:*:*:*:* | 5.2.0 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:5.2.1:*:*:*:*:*:*:* | 5.2.1 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:5.2.2:*:*:*:*:*:*:* | 5.2.2 | Vulnerable | Fortinet |
| cpe:2.3:o:fortinet:fortios:5.2.3:*:*:*:*:*:*:* | 5.2.3 | Vulnerable | Fortinet |
- cpe:2.3:o:fortinet:fortios:5.0.10:*:*:*:*:*:*:* Versions 5.0.10 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:5.0.11:*:*:*:*:*:*:* Versions 5.0.11 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:5.2.0:*:*:*:*:*:*:* Versions 5.2.0 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:5.2.1:*:*:*:*:*:*:* Versions 5.2.1 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:5.2.2:*:*:*:*:*:*:* Versions 5.2.2 Vulnerable ·Fortinet
- cpe:2.3:o:fortinet:fortios:5.2.3:*:*:*:*:*:*:* Versions 5.2.3 Vulnerable ·Fortinet
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2015-2323
- 2026-10-03 Alias added: GHSA-828v-j88x-385j
References
More Fortinet Fortios vulnerabilities
- TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
- TI-2025-18911 Heap-based buffer overflow in Fortinet FortiSwitchManager KEVCVSS 3.1CRITICAL 9.8
- TI-2024-36904 Authentication bypass in Fortinet FortiOS KEVCVSS 3.1CRITICAL 9.8
- TI-2024-15234 A use of externally-controlled format string in Fortinet FortiOS versions 7.4.0 through… KEVCVSS 3.1CRITICAL 9.8
- TI-2024-14448 Out-of-bounds write in Fortinet FortiOS KEVCVSS 3.1CRITICAL 9.8
- TI-2023-12585 Heap-based buffer overflow in Fortinet FortiOS-6K7K KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2015-2323 · CVE Program
- CVE-2015-2323 · NVD
- FIRST EPSS
- GHSA-828v-j88x-385j · GitHub Advisory Database · CC BY 4.0
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