Summary
generated automatically from NVD dataOpenSSL 0.9.6 before 0.9.6d mishandles unknown message types in its TLS processing, so a remote attacker can trigger an infinite loop and cause a denial of service. The issue was demonstrated with the Codenomicon TLS Test Tool, and the NVD lists affected products from vendors such as Cisco, HP, Symantec and Avaya. It carries a CVSS v2.0 score of 5.0 (MEDIUM), with network access, low complexity and no authentication, affecting availability only.
NVD description
OpenSSL 0.9.6 before 0.9.6d does not properly handle unknown message types, which allows remote attackers to cause a denial of service (infinite loop), as demonstrated using the Codenomicon TLS Test Tool.
EPSS · FIRST.org
7.2%probability of exploitation in the next 30 days
Higher than 94% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-11-01, recomputed daily by FIRST.org.
CVSS v2.0 Score
Information
- Published
- 23 nov. 2004
- Updated
- 16 juin 2026
- Status
- Modified
- Source
- cve@mitre.org
Affected products
Bounds published by NVD: "< 8.4.27" means 8.4.27 is no longer vulnerable. The fixed release to install is in the vendor advisory.
Weaknesses (CWE)
References (50)
- http://www.kb.cert.org/vuls/id/465542Third Party AdvisoryUS Government Resource
- + 35 more references on NVD
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