CVE-2011-4108

CVE-2011-4108 is a medium-severity vulnerability in Openssl with a CVSS 2.0 base score of 4.3. Its EPSS exploit-prediction score of 16% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-310.

Key facts

Description

The DTLS implementation in OpenSSL before 0.9.8s and 1.x before 1.0.0f performs a MAC check only if certain padding is valid, which makes it easier for remote attackers to recover plaintext via a padding oracle attack.

Frequently asked questions

What is CVE-2011-4108?
The DTLS implementation in OpenSSL before 0.9.8s and 1.x before 1.0.0f performs a MAC check only if certain padding is valid, which makes it easier for remote attackers to recover plaintext via a padding oracle attack.
How severe is CVE-2011-4108?
CVE-2011-4108 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-4108 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4108?
CVE-2011-4108 primarily affects Openssl. In total, 63 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-4108?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-4108 published?
CVE-2011-4108 was published on 2012-01-06 and last updated on 2026-06-16.

References

Affected products (63)

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Threat intelligence

Threat-intel indicators referencing this CVE: