Mozilla: Entering fullscreen and persistent pointerlock without user permission (MFSA 2016-58)
Published Jun 13, 2016
8.8
HIGHCVSS 3.0
EPSS 1.35%
Description
Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 do not ensure that the user approves the fullscreen and pointerlock settings, which allows remote attackers to cause a denial of service (UI outage), or conduct clickjacking or spoofing attacks, via a crafted web site.
Affected products
No data.
Configuration 1
- 12.04
- 14.04
- 15.10
- 16.04
Configuration 3
- 8.0
No data.
Red Hat Enterprise Linux 5
firefox-0:45.2.0-1.el5_11
Fixed · RHSA-2016:1217
Red Hat Enterprise Linux 6
firefox-0:45.2.0-1.el6_8
Fixed · RHSA-2016:1217
Red Hat Enterprise Linux 7
firefox-0:45.2.0-1.el7_2
Fixed · RHSA-2016:1217
Red Hat Enterprise Linux 5
thunderbird
Not affected
Red Hat Enterprise Linux 6
thunderbird
Not affected
Red Hat Enterprise Linux 7
thunderbird
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox-0:45.2.0-1.el5_11 | Fixed | RHSA-2016:1217 |
| Red Hat Enterprise Linux 6 | firefox-0:45.2.0-1.el6_8 | Fixed | RHSA-2016:1217 |
| Red Hat Enterprise Linux 7 | firefox-0:45.2.0-1.el7_2 | Fixed | RHSA-2016:1217 |
| Red Hat Enterprise Linux 5 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 6 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 7 | thunderbird | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:H
AV:N/AC:M/Au:N/C:N/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.35% (0.01347) | 70.42th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.35% (0.01352) | 67.80th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.78% (0.00775) | 71.91th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.44% (0.01444) | 87.18th | v3 (v2023.03.01) |
| Jan 30, 2024 | 1.44% (0.01444) | 85.29th | v3 (v2023.03.01) |
| May 17, 2023 | 1.33% (0.01331) | 84.03th | v3 (v2023.03.01) |
| Apr 4, 2023 | 1.25% (0.01250) | 83.45th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.12% (0.01118) | 82.34th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.96% (0.01955) | 78.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.96% (0.01955) | 76.59th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.96% (0.01955) | 55.71th | v2 (v2022.01.01) |
References (16)
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00014.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00016.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00055.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://www.debian.org/security/2016/dsa-3600 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.mozilla.org/security/announce/2016/mfsa2016-58.html x_refsource_CONFIRMVendor Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/91075 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1036057 vdb-entryx_refsource_SECTRACKThird Party Advisory
- http://www.ubuntu.com/usn/USN-2993-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/errata/RHSA-2016:1217 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-2831 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1261933 x_refsource_CONFIRMIssue TrackingPermissions Required
- https://bugzilla.redhat.com/show_bug.cgi?id=1342898 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-2831
- https://www.cve.org/CVERecord?id=CVE-2016-2831
- https://www.mozilla.org/security/announce/2016/mfsa2016-58.html
Change history (0)
No recorded changes yet.