CVE-2012-0884

Name: CVE-2012-0884
Creator: NVD / NIST
Published: 2012-03-13T03:12:26.243+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 13.08%

Last modified Jun 16, 2026

CVE-2012-0884 is a vulnerability of currently unknown severity. The implementation of Cryptographic Message Syntax (CMS) and PKCS #7 in OpenSSL before 0.9.8u and 1.x before 1.0.0h does not properly restrict certain oracle behavior, which makes it easier for context-dependent attackers to decrypt data via a Million Message Attack (MMA) adaptive chosen ciphertext attack.. EPSS estimates a 13.08% chance of exploitation in the next 30 days.

Description

The implementation of Cryptographic Message Syntax (CMS) and PKCS #7 in OpenSSL before 0.9.8u and 1.x before 1.0.0h does not properly restrict certain oracle behavior, which makes it easier for context-dependent attackers to decrypt data via a Million Message Attack (MMA) adaptive chosen ciphertext attack.

Metrics

EPSS Probability

13.08%

95.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-310

Affected Software

Vendor	Product	Versions
Openssl	Openssl	<= 0.9.8t
Openssl	Openssl	0.9.0b
Openssl	Openssl	0.9.1b
Openssl	Openssl	0.9.1c
Openssl	Openssl	0.9.2b
Openssl	Openssl	0.9.3
Openssl	Openssl	0.9.3a
Openssl	Openssl	0.9.4
Openssl	Openssl	0.9.5
Openssl	Openssl	0.9.5a
Openssl	Openssl	0.9.6
Openssl	Openssl	0.9.6a
Openssl	Openssl	0.9.6b
Openssl	Openssl	0.9.6c
Openssl	Openssl	0.9.6d
Openssl	Openssl	0.9.6e
Openssl	Openssl	0.9.6f
Openssl	Openssl	0.9.6g
Openssl	Openssl	0.9.6h
Openssl	Openssl	0.9.6i
Openssl	Openssl	0.9.6j
Openssl	Openssl	0.9.6k
Openssl	Openssl	0.9.6l
Openssl	Openssl	0.9.6m
Openssl	Openssl	0.9.7
Openssl	Openssl	0.9.7a
Openssl	Openssl	0.9.7b
Openssl	Openssl	0.9.7c
Openssl	Openssl	0.9.7d
Openssl	Openssl	0.9.7e
Openssl	Openssl	0.9.7f
Openssl	Openssl	0.9.7g
Openssl	Openssl	0.9.7h
Openssl	Openssl	0.9.7i
Openssl	Openssl	0.9.7j
Openssl	Openssl	0.9.7k
Openssl	Openssl	0.9.7l
Openssl	Openssl	0.9.7m
Openssl	Openssl	0.9.8
Openssl	Openssl	0.9.8a
Openssl	Openssl	0.9.8b
Openssl	Openssl	0.9.8c
Openssl	Openssl	0.9.8d
Openssl	Openssl	0.9.8e
Openssl	Openssl	0.9.8f
Openssl	Openssl	0.9.8g
Openssl	Openssl	0.9.8h
Openssl	Openssl	0.9.8i
Openssl	Openssl	0.9.8j
Openssl	Openssl	0.9.8k

Showing 50 of 66 affected configurations. See NVD for the full list.

References

Timeline

Published: Mar 13, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2012-0884?

How severe is CVE-2012-0884?

Severity scoring for CVE-2012-0884 is pending analysis. The EPSS model estimates a 13.08% probability of exploitation in the next 30 days.

How do I fix CVE-2012-0884?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2012-0884?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST