Is CVE-2012-2143 being actively exploited?

CVE-2012-2143 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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

CVE-2012-2143 has a CVSS 2.0 base score of 4.3 (MEDIUM).

CVE-2012-2143

MEDIUM · CVSS 4.3EPSS 5.7%EU EUVD

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.

Key facts

CVSS score: 4.3 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness (CWE): CWE-310
EPSS score: 5.7% (93th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2012-2140)
Published: July 5, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-2140 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

debian / debian linux
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd
freebsd / freebsd

and 12 more…

References

http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=aab49e934de1fff046e659cbec46e3d053b41c34(Broken Link, Patch)
http://git.postgresql.org/gitweb/?p=postgresql.git&a=commit&h=932ded2ed51e8333852e370c7a6dad75d9f236f9(Vendor Advisory)
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705(Third Party Advisory)
http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html(Mailing List, Third Party Advisory)
http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082258.html(Mailing List, Third Party Advisory)
http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082292.html(Mailing List, Third Party Advisory)
http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082294.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00003.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-updates/2012-09/msg00102.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-updates/2012-10/msg00013.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-updates/2012-10/msg00024.html(Mailing List, Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2012-1037.html(Third Party Advisory)
http://secunia.com/advisories/49304(Broken Link, Vendor Advisory)
http://secunia.com/advisories/50718(Broken Link, Vendor Advisory)
http://security.freebsd.org/advisories/FreeBSD-SA-12:02.crypt.asc(Vendor Advisory)
http://support.apple.com/kb/HT5501(Third Party Advisory)
http://www.debian.org/security/2012/dsa-2491(Third Party Advisory)
http://www.mandriva.com/security/advisories?name=MDVSA-2012:092(Broken Link)
http://www.postgresql.org/docs/8.3/static/release-8-3-19.html(Vendor Advisory)
http://www.postgresql.org/docs/8.4/static/release-8-4-12.html(Vendor Advisory)
http://www.postgresql.org/docs/9.0/static/release-9-0-8.html(Vendor Advisory)
http://www.postgresql.org/docs/9.1/static/release-9-1-4.html(Vendor Advisory)
http://www.postgresql.org/support/security/(Vendor Advisory)
http://www.securitytracker.com/id?1026995(Third Party Advisory, VDB Entry)
https://bugzilla.redhat.com/show_bug.cgi?id=816956(Issue Tracking, Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain