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Vulnerability record · CVE-2016-1954 · published 13 March 2016

CVE-2016-1954: Mozilla firefox permissions and access controls vulnerability

Mozilla · Firefox

The nsCSPContext::SendReports function in dom/security/nsCSPContext.cpp in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 does not prevent use of a non-HTTP report-uri for a Content Security Policy (CSP) violation report, which allows remote attackers to cause a denial of service (data overwrite) or possibly gain privileges by specifying a URL of a local file.

8.8 CVSS 3.0 High EPSS 2.3% · top 16.9% CWE-264 · Permissions and access controls
8.8CVSS 3.0 base score, v2 6.8
2.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
46References
17 Jun 2026Last modified by NVD

Description

The nsCSPContext::SendReports function in dom/security/nsCSPContext.cpp in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 does not prevent use of a non-HTTP report-uri for a Content Security Policy (CSP) violation report, which allows remote attackers to cause a denial of service (data overwrite) or possibly gain privileges by specifying a URL of a local file.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
http://hg.mozilla.org/releases/mozilla-release/rev/5154bb929236 Issue TrackingPatch
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00029.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00050.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00068.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00089.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00091.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00093.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00006.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00007.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00008.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3510
http://www.debian.org/security/2016/dsa-3520
http://www.mozilla.org/security/announce/2016/mfsa2016-17.html Vendor Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html Third Party Advisory
http://www.securitytracker.com/id/1035215
http://www.ubuntu.com/usn/USN-2917-1
http://www.ubuntu.com/usn/USN-2917-2
http://www.ubuntu.com/usn/USN-2917-3
http://www.ubuntu.com/usn/USN-2934-1
https://bugzilla.mozilla.org/show_bug.cgi?id=1243178 Issue Tracking
https://security.gentoo.org/glsa/201605-06
http://hg.mozilla.org/releases/mozilla-release/rev/5154bb929236 Issue TrackingPatch
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00029.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00050.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00068.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00089.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00091.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00093.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00006.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00007.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00008.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3510
http://www.debian.org/security/2016/dsa-3520
http://www.mozilla.org/security/announce/2016/mfsa2016-17.html Vendor Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html Third Party Advisory
http://www.securitytracker.com/id/1035215

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Source: NIST National Vulnerability Database (record CVE-2016-1954), CISA KEV, FIRST EPSS (scores of 2026-10-12). This page is refreshed as NVD updates the record.