DEBIAN-CVE-2016-5254

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2016-5254
Published: 05 Aug 2016, 01:59
Last modified:28 Apr 2026, 20:15

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
3.0 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

05 Aug 2016, 01:59
Published
Vulnerability first disclosed
28 Apr 2026, 20:15
Last Modified
Vulnerability information updated

Description

Use-after-free vulnerability in the nsXULPopupManager::KeyDown function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) by leveraging keyboard access to use the Alt key during selection of top-level menu items.

CVSS Metrics

  • v3.0•CRITICAL•Score: 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • debian•firefox-esr

    < 45.3.0esr-1 | < 45.3.0esr-1 | < 45.3.0esr-1 | < 45.3.0esr-1

References (1)