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CVE-2012-5534

24
FAUCET Score

CVE-2012-5534 describes a critical vulnerability in WeeChat versions 0.3.0 through 0.3.9.1, specifically within the hook_process function of its plugin API. This flaw allows remote attackers to execute arbitrary commands by injecting shell metacharacters into commands originating from a plugin, leveraging a "shell expansion" weakness. With a CVSS score of 7.5, this vulnerability is highly severe, enabling remote code execution with low attack complexity and no authentication required, leading to potential compromise of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.3.0CPE matchmatch criteria
cpe:2.3:a:flashtux:weechat:0.3.0:*:*:*:*:*:*:*
0.3.1CPE matchmatch criteria
cpe:2.3:a:flashtux:weechat:0.3.1:*:*:*:*:*:*:*
0.3.1.1CPE matchmatch criteria
cpe:2.3:a:flashtux:weechat:0.3.1.1:*:*:*:*:*:*:*
0.3.2CPE matchmatch criteria
cpe:2.3:a:flashtux:weechat:0.3.2:*:*:*:*:*:*:*
0.3.3CPE matchmatch criteria
cpe:2.3:a:flashtux:weechat:0.3.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.44%
Probability of exploitation in next 30 days
EPSS Percentile
90.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0444 is in the 83rd percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

git.savannah.gnu.org / gitweb
lists.fedoraproject.org / pipermail/package-announce/2012-November/093260.html
lists.fedoraproject.org / pipermail/package-announce/2012-November/093495.html
lists.fedoraproject.org / pipermail/package-announce/2012-November/093516.html
lists.opensuse.org / opensuse-security-announce/2013-01/msg00018.html
lists.opensuse.org / opensuse-updates/2012-11/msg00087.html
secunia.com / advisories/51294
Vendor Advisory
secunia.com / advisories/51377
savannah.nongnu.org / bugs
wiki.mageia.org / en/Support/Advisories/MGASA-2012-0347
weechat.org / security
PatchVendor Advisory
mandriva.com / security/advisories
openwall.com / lists/oss-security/2012/11/19/4
securityfocus.com / bid/56584