How severe is CVE-2011-5095?

CVE-2011-5095 has a CVSS 2.0 base score of 4.0, rated medium severity.

Is CVE-2011-5095 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-5095?

CVE-2011-5095 affects Openssl. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-5095?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-5095 published?

CVE-2011-5095 was published on 2012-06-20 and last updated on 2026-06-16.

CVE-2011-5095

CVE-2011-5095 is a medium-severity vulnerability in Openssl with a CVSS 2.0 base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-310.

Key facts

Severity: Medium (CVSS 2.0 base score 4.0)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Openssl
Published: 2012-06-20
Last modified: 2026-06-16

Description

The Diffie-Hellman key-exchange implementation in OpenSSL 0.9.8, when FIPS mode is enabled, does not properly validate a public parameter, which makes it easier for man-in-the-middle attackers to obtain the shared secret key by modifying network traffic, a related issue to CVE-2011-1923.

Frequently asked questions

What is CVE-2011-5095?: The Diffie-Hellman key-exchange implementation in OpenSSL 0.9.8, when FIPS mode is enabled, does not properly validate a public parameter, which makes it easier for man-in-the-middle attackers to obtain the shared secret key by modifying network traffic, a related issue to CVE-2011-1923.
How severe is CVE-2011-5095?: CVE-2011-5095 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2011-5095 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-5095?: CVE-2011-5095 affects Openssl. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-5095?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-5095 published?: CVE-2011-5095 was published on 2012-06-20 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:openssl:openssl:0.9.8:*:*:*:*:*:*:*

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