How severe is CVE-2005-3731?

CVE-2005-3731 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2005-3731 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-3731?

CVE-2005-3731 primarily affects Yassl. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-3731?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2005-3731 published?

CVE-2005-3731 was published on 2005-11-21 and last updated on 2026-06-16.

CVE-2005-3731

CVE-2005-3731 is a critical-severity vulnerability in Yassl with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Yassl
Published: 2005-11-21
Last modified: 2026-06-16

Description

Unspecified vulnerability in yaSSL before 1.0.6 has unknown impact and attack vectors, related to "certificate chain processing."

Frequently asked questions

What is CVE-2005-3731?: Unspecified vulnerability in yaSSL before 1.0.6 has unknown impact and attack vectors, related to "certificate chain processing."
How severe is CVE-2005-3731?: CVE-2005-3731 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2005-3731 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-3731?: CVE-2005-3731 primarily affects Yassl. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-3731?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2005-3731 published?: CVE-2005-3731 was published on 2005-11-21 and last updated on 2026-06-16.

References

Affected products (19)

cpe:2.3:a:yassl:yassl:0.3.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:0.3.5:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:0.4.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:0.6.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:0.7.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:0.8.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:0.9.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:0.9.2:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:0.9.5:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:0.9.6:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:0.9.8:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:0.9.9:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:1.0:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:1.0.4:*:*:*:*:*:*:*
cpe:2.3:a:yassl:yassl:1.0.5:*:*:*:*:*:*:*

More vulnerabilities in Yassl

CVE-2008-0227 — High (CVSS 7.5): yaSSL 1.7.5 and earlier, as used in MySQL and possibly other products, allows remote attackers to cause a denial of…
CVE-2008-0226 — High (CVSS 7.5): Multiple buffer overflows in yaSSL 1.7.5 and earlier, as used in MySQL and possibly other products, allow remote…

All CVEs affecting Yassl →