Is CVE-2012-2131 in the CISA KEV catalog?

No. CVE-2012-2131 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-2131?

CVE-2012-2131 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2012-2131?

CVE-2012-2131 has an EPSS score of 17.00% (97th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2012-2131

HIGHEPSS 97th pctl

7.5

CVSS v2

NVD

Description

Multiple integer signedness errors in crypto/buffer/buffer.c in OpenSSL 0.9.8v allow remote attackers to conduct buffer overflow attacks, and cause a denial of service (memory corruption) or possibly have unspecified other impact, via crafted DER data, as demonstrated by an X.509 certificate or an RSA public key. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-2110.

CWE-189

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

17.00%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

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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.