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Fencer Intel
high 7.5

CVE-2012-4415 in the critical feed json

Stack-based buffer overflow in the guac_client_plugin_open function in libguac in Guacamole before 0.6.3 allows remote attackers to cause a…

published 2012-10-01 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-4351

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
13.6%
EPSS 13.6% chance of exploitation in 30 days, percentile 96%
public exploits
1
Exploit-DB

Summary

Stack-based buffer overflow in the guac_client_plugin_open function in libguac in Guacamole before 0.6.3 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a long protocol name.

Patch / fix

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-4415 updated cvss 4.3

libguac: Stack-based buffer overflow by protocol handling in guac client plug-in

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-37788)
  2. Published

Exploit prediction

13.58% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-37788 libguac - Remote Buffer Overflow remote, 2012-09-11
  • securityfocus.com http://www.securityfocus.com/bid/55497 referenced PoC, tagged "exploit" by a source, unverified
  • archives.neohapsis.com http://archives.neohapsis.com/archives/bugtraq/2012-09/0107.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.