CVE-2012-5534

The hook_process function in the plugin API for WeeChat 0.3.0 through 0.3.9.1 allows remote attackers to execute arbitrary commands via shell metacharacters in a command from a plugin, related to "shell expansion."

Published: 2012-12-03 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-5534 is rated Moderate Risk (64/100): CVSS High severity, with high exploitation likelihood (EPSS 4.44%, 90th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +2.47% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-5534

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.97% 4.44% +2.47%
2 2025-03-30 3.38% 1.97% -1.41%
3 2025-03-29 — 3.38% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-5534

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2012-5534

OS Trackers for CVE-2012-5534

vendor priority summary link
debian not yet assigned CVE-2012-5534 not yet assigned priority: Debian including 1 source packages (weechat), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2012-5534
gentoo normal CVE-2012-5534: 1 GLSA(s) (201405-03), 1 atom(s) (net-irc/weechat); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-5534
ubuntu medium CVE-2012-5534 medium priority: Ubuntu including 1 source packages (weechat), 15 status rows across 15 suites (hardy, lucid, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 8, ignored 5, DNE 1, released 1. https://ubuntu.com/security/CVE-2012-5534

Affected software / configurations for CVE-2012-5534

Vendor Product Version Raw CPE
flashtux weechat 0.3.0 cpe:2.3:a:flashtux:weechat:0.3.0:*:*:*:*:*:*:*
flashtux weechat 0.3.1 cpe:2.3:a:flashtux:weechat:0.3.1:*:*:*:*:*:*:*
flashtux weechat 0.3.1.1 cpe:2.3:a:flashtux:weechat:0.3.1.1:*:*:*:*:*:*:*
flashtux weechat 0.3.2 cpe:2.3:a:flashtux:weechat:0.3.2:*:*:*:*:*:*:*
flashtux weechat 0.3.3 cpe:2.3:a:flashtux:weechat:0.3.3:*:*:*:*:*:*:*
flashtux weechat 0.3.4 cpe:2.3:a:flashtux:weechat:0.3.4:*:*:*:*:*:*:*
flashtux weechat 0.3.6 cpe:2.3:a:flashtux:weechat:0.3.6:*:*:*:*:*:*:*
flashtux weechat 0.3.7 cpe:2.3:a:flashtux:weechat:0.3.7:*:*:*:*:*:*:*
flashtux weechat 0.3.8 cpe:2.3:a:flashtux:weechat:0.3.8:*:*:*:*:*:*:*
flashtux weechat 0.3.9 cpe:2.3:a:flashtux:weechat:0.3.9:*:*:*:*:*:*:*
flashtux weechat 0.3.9.1 cpe:2.3:a:flashtux:weechat:0.3.9.1:*:*:*:*:*:*:*

References for CVE-2012-5534

URL Tags
http://git.savannah.gnu.org/gitweb/?p=weechat.git%3Ba=commitdiff_plain%3Bh=efb795c74fe954b9544074aafcebb1be4452b03a
http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093260.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093495.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093516.html
http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00018.html
http://lists.opensuse.org/opensuse-updates/2012-11/msg00087.html
http://secunia.com/advisories/51294 Vendor Advisory
http://secunia.com/advisories/51377
http://weechat.org/security/ Patch Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2013:136
http://www.openwall.com/lists/oss-security/2012/11/19/4
http://www.securityfocus.com/bid/56584
https://savannah.nongnu.org/bugs/?37764
https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0347
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