CVE-2012-2143

Q: How do I fix CVE-2012-2143?

Published advisories record a fix for 2 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Q: Is CVE-2012-2143 being actively exploited?

Not that we know of. CVE-2012-2143 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 5.7% is the estimated probability that it will be exploited in the next 30 days. That is higher than 92% of all scored CVEs.

Q: How severe is CVE-2012-2143?

CVE-2012-2143 has a CVSS v2 base score of 4.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2012-2143 affect?

Published advisories record a fix for php (NVD), postgresql (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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

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

5.73%probability of exploitation in 30 days

92ndpercentile

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

Common questions

How do I fix CVE-2012-2143?

Published advisories record a fix for 2 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2012-2143 being actively exploited?

Not that we know of. CVE-2012-2143 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 5.7% is the estimated probability that it will be exploited in the next 30 days. That is higher than 92% of all scored CVEs.

How severe is CVE-2012-2143?

CVE-2012-2143 has a CVSS v2 base score of 4.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2012-2143 affect?

Published advisories record a fix for php (NVD), postgresql (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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.