CVE-2016-1960 Affecting firefox-esr package, versions <45.0esr-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
30.95% (99th percentile)

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  • Snyk IDSNYK-ECHOLATEST-FIREFOXESR-18168561
  • published22 Jul 2026
  • disclosed13 Mar 2016

Introduced: 13 Mar 2016

CVE-2016-1960  (opens in a new tab)

How to fix?

Upgrade Echo:latest firefox-esr to version 45.0esr-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Integer underflow in the nsHtml5TreeBuilder class in the HTML5 string parser in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free) by leveraging mishandling of end tags, as demonstrated by incorrect SVG processing, aka ZDI-CAN-3545.

References

CVSS Base Scores

version 3.1