Servers and applications
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.
Severity Medium 4.3
Published 6 Jan 2012
Last changed 16 Jun 2026
Added to UpHeron 21 Oct 2026 Exploit chance 16% in the next 30 daysHigher than 96% of CVEs. EPSS by FIRST , 12 Nov 2026
Attack Over the network · No login needed
Attacker can Read some data
CVSS vector AV:N/AC:M/Au:N/C:P/I:N/A:N
Sources NVD Affected software Software Affected versions OpenSSLServers and applications · cpe:a:openssl:openssl Version 1.0.0d Version 1.0.0c Version 1.0.0b Version 1.0.0a All 64 release lines Every version up to 0.9.8r Every version up to 1.0.0e Version 0.9.1c Version 0.9.2b Version 0.9.4 Version 0.9.5 Version 0.9.5a Version 0.9.6 Version 0.9.6a Version 0.9.6b Version 0.9.6c Version 0.9.6d Version 0.9.6e Version 0.9.6f Version 0.9.6g Version 0.9.6h Version 0.9.6h-bogus Version 0.9.6i Version 0.9.6j Version 0.9.6k Version 0.9.6l Version 0.9.6m Version 0.9.7 Version 0.9.7a Version 0.9.7b Version 0.9.7c Version 0.9.7d Version 0.9.7e Version 0.9.7f Version 0.9.7g Version 0.9.7h Version 0.9.7i Version 0.9.7j Version 0.9.7k Version 0.9.7l Version 0.9.7m Version 0.9.8 Version 0.9.8a Version 0.9.8b Version 0.9.8c Version 0.9.8d Version 0.9.8e Version 0.9.8f Version 0.9.8g Version 0.9.8h Version 0.9.8i Version 0.9.8j Version 0.9.8k Version 0.9.8l Version 0.9.8m Version 0.9.8n Version 0.9.8o Version 0.9.8p Version 0.9.8q Version 1.0.0-beta1 Version 1.0.0-beta2 Version 1.0.0-beta3 Version 1.0.0-beta4 Version 1.0.0-beta5 Version 1.0.0 Version 1.0.0a Version 1.0.0b Version 1.0.0c Version 1.0.0d
References NVD https://nvd.nist.gov/vuln/detail/CVE-2011-4108 CVE.org https://www.cve.org/CVERecord?id=CVE-2011-4108