CVE & CISA-KEV Catalog

CVE-2015-0817

MEDIUMEPSS 88th pctl
6.8
CVSS v2
NVD

Description

The asm.js implementation in Mozilla Firefox before 36.0.3, Firefox ESR 31.x before 31.5.2, and SeaMonkey before 2.33.1 does not properly determine the cases in which bounds checking may be safely skipped during JIT compilation and heap access, which allows remote attackers to read or write to unintended memory locations, and consequently execute arbitrary code, via crafted JavaScript.

How to fix

Remediation Available
firefoxUbuntu
Fixed in:36.0.4+build1-0ubuntu0.14.04.1USN-2538-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

3.68%probability of exploitation in 30 days
88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.