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Vulnerability record · CVE-2015-0817 · published 24 March 2015

CVE-2015-0817: Mozilla firefox vulnerability

Mozilla · Firefox

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.

6.8 CVSS 2.0 Medium EPSS 3.7% · top 10.7% CWE-17 · CWE-17
6.8CVSS 2.0 base score
3.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
26References
17 Jun 2026Last modified by 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.

AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00026.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00029.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00035.html
http://lists.opensuse.org/opensuse-updates/2015-03/msg00096.html
http://rhn.redhat.com/errata/RHSA-2015-0718.html
http://www.debian.org/security/2015/dsa-3201
http://www.mozilla.org/security/announce/2015/mfsa2015-29.html Vendor Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
http://www.securityfocus.com/bid/73263
http://www.securitytracker.com/id/1031958
http://www.ubuntu.com/usn/USN-2538-1
https://bugzilla.mozilla.org/show_bug.cgi?id=1145255
https://security.gentoo.org/glsa/201504-01
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00026.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00029.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00035.html
http://lists.opensuse.org/opensuse-updates/2015-03/msg00096.html
http://rhn.redhat.com/errata/RHSA-2015-0718.html
http://www.debian.org/security/2015/dsa-3201
http://www.mozilla.org/security/announce/2015/mfsa2015-29.html Vendor Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
http://www.securityfocus.com/bid/73263
http://www.securitytracker.com/id/1031958
http://www.ubuntu.com/usn/USN-2538-1
https://bugzilla.mozilla.org/show_bug.cgi?id=1145255
https://security.gentoo.org/glsa/201504-01

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2015-0817), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.