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CVE-2012-3973

HIGH · CVSS 7.6EPSS 4.9%EU EUVD

The debugger in the developer-tools subsystem in Mozilla Firefox before 15.0, when remote debugging is disabled, does not properly restrict access to the remote-debugging service, which allows remote attackers to execute arbitrary code by leveraging the presence of the HTTPMonitor extension and connecting to that service through the HTTPMonitor port.

Key facts

CVSS score
7.6 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:H/Au:N/C:C/I:C/A:C
Weakness (CWE)
CWE-264
EPSS score
4.9% (92th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2012-3917)
Published
August 29, 2012
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-3917 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

  • mozilla / firefox
  • mozilla / firefox
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  • mozilla / firefox
  • mozilla / firefox

and 97 more…

References

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

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