Is CVE-2012-2143 in the CISA KEV catalog?

No. CVE-2012-2143 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-2143?

CVE-2012-2143 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2012-2143?

CVE-2012-2143 has an EPSS score of 5.73% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2012-2143?

Upgrade php to 5.4.4 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2012-2143

MEDIUMEPSS 92th pctl

4.3

CVSS v2

NVD

Description

The crypt_des (aka DES-based crypt) function in FreeBSD before 9.0-RELEASE-p2, as used in PHP, PostgreSQL, and other products, does not process the complete cleartext password if this password contains a 0x80 character, which makes it easier for context-dependent attackers to obtain access via an authentication attempt with an initial substring of the intended password, as demonstrated by a Unicode password.

CWE-310Cryptographic Issues

How to fix

Remediation Available

phpNVD

Affected:>= 5.4.0, < 5.4.4Fixed in:5.4.4CVE-2012-2143derived from NVD

postgresqlNVD

Affected:>= 9.1, < 9.1.4Fixed in:9.1.4CVE-2012-2143derived from NVD

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

5.73%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% 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.