Is CVE-2012-0884 in the CISA KEV catalog?

No. CVE-2012-0884 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-0884?

CVE-2012-0884 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2012-0884?

CVE-2012-0884 has an EPSS score of 12.93% (96th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2012-0884?

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

CVE & CISA-KEV Catalog

CVE-2012-0884

MEDIUMEPSS 96th pctl

5.0

CVSS v2

NVD

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.

CWE-310Cryptographic Issues

How to fix

Remediation Available

opensslDebian

Fixed in:1.0.0h-1CVE-2012-0884

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

12.93%probability of exploitation in 30 days

96thpercentile

Very high risk: more likely to be exploited than 96% of all known CVEs.

References

Related Vulnerabilities

Other CWE-310 (Cryptographic Issues) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-3566	Low	3.4	100%	-	Fix
CVE-2015-4000	Low	3.7	100%	-	Fix
CVE-2015-0204	Medium	4.3	99%	-	Fix
CVE-2016-2107	Medium	5.9	89%	-	Fix
CVE-2016-0800	Medium	5.9	82%	-	Fix
CVE-2014-8684	Critical	9.8	72%	-	-

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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.