Is CVE-2011-3210 in the CISA KEV catalog?

No. CVE-2011-3210 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2011-3210?

CVE-2011-3210 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2011-3210?

CVE-2011-3210 has an EPSS score of 4.56% (90th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2011-3210?

Upgrade openssl on debian 11 to 1.0.0e-1 or later.

CVE & CISA-KEV Catalog

CVE-2011-3210

MEDIUMEPSS 90th pctl

5.0

CVSS v2

NVD

Description

The ephemeral ECDH ciphersuite functionality in OpenSSL 0.9.8 through 0.9.8r and 1.0.x before 1.0.0e does not ensure thread safety during processing of handshake messages from clients, which allows remote attackers to cause a denial of service (daemon crash) via out-of-order messages that violate the TLS protocol.

CWE-399Resource Management Errors

How to fix

Remediation Available

opensslDebian

Fixed in:1.0.0e-1CVE-2011-3210

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

4.56%probability of exploitation in 30 days

90thpercentile

High risk: more likely to be exploited than 90% of all known CVEs.

References

Patch1

cvs.openssl.org

Vendor Advisory1

openssl.org

Other references9

Related Vulnerabilities

Other CWE-399 (Resource Management Errors) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2009-3103	High	10.0	90%	-	-
CVE-2009-0075	High	9.3	85%	-	-
CVE-2005-1790	Low	2.6	83%	-	-
CVE-2010-0806	High	8.8	82%	KEV	-
CVE-2009-2526	High	7.8	82%	-	-
CVE-2015-1868	High	7.8	82%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.