PureTLS before 0.9b5 does not clear optional Extensions and Algorithm.Parameters values…
Priority LOW 24Published · 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 · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
PureTLS before 0.9b5 does not clear optional Extensions and Algorithm.Parameters values before parsing, which might trigger an information leak of values from earlier certificates.
Why it matters now
EPSS 0.00548 46th 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:claymore_systems_inc:puretls:*:*:*:*:*:*:*:* | up to 0.9b4 | Vulnerable | Claymore Systems Inc |
- cpe:2.3:a:claymore_systems_inc:puretls:*:*:*:*:*:*:*:* Versions up to 0.9b4 Vulnerable ·Claymore Systems Inc
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2005-4839
- 2026-10-03 Alias added: GHSA-m93p-78fx-rr4f
References
More Claymore Systems Inc Puretls vulnerabilities
- TI-2002-00405 Vulnerability in PureTLS before 0.9b2 related to injection attacks, which could possibly… CVSS 2.0HIGH 7.5
Sources
- CVE-2005-4839 · CVE Program
- CVE-2005-4839 · NVD
- FIRST EPSS
- GHSA-m93p-78fx-rr4f · GitHub Advisory Database · CC BY 4.0
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