The IKEv1 implementation in Clavister cOS Core before 11.00.11, 11.20.xx before 11.20.06…
Priority LOW 30Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
The IKEv1 implementation in Clavister cOS Core before 11.00.11, 11.20.xx before 11.20.06, and 12.00.xx before 12.00.09 allows remote attackers to decrypt RSA-encrypted nonces by leveraging a Bleichenbacher attack.
Why it matters now
EPSS 0.01634 76th 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 · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:clavister:cos_core:*:*:*:*:*:*:*:* | before 11.00.11; 11.20.00 to before 11.20.06; 12.00.00 to before 12.00.09 | Vulnerable | Clavister |
- cpe:2.3:a:clavister:cos_core:*:*:*:*:*:*:*:* Versions before 11.00.11; 11.20.00 to before 11.20.06; 12.00.00 to before 12.00.09 Vulnerable ·Clavister
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-8753
- 2026-10-03 Alias added: GHSA-fgp3-qvm3-xhqf
References
Sources
- CVE-2018-8753 · CVE Program
- CVE-2018-8753 · NVD
- FIRST EPSS
- GHSA-fgp3-qvm3-xhqf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences