Mozilla: Use-after-free deleting tables from a contenteditable document (MFSA 2016-51)
Published Jun 13, 2016
7.5
HIGHCVSS 3.0
EPSS 2.77%
Description
Use-after-free vulnerability in the mozilla::dom::Element class in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2, when contenteditable mode is enabled, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) by triggering deletion of DOM elements that were created in the editor.
Affected products
No data.
Configuration 3
- 8.0
Configuration 5
- 12.04
- 14.04
- 15.10
- 16.04
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:H/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:P/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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.77% (0.02771) | 85.81th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.78% (0.02782) | 84.46th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.76% (0.02755) | 84.72th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.83% (0.04834) | 82.14th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.76% (0.02755) | 85.04th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.40% (0.02396) | 90.28th | v3 (v2023.03.01) |
| Jul 13, 2024 | 2.40% (0.02396) | 90.02th | v3 (v2023.03.01) |
| Jan 30, 2024 | 2.34% (0.02343) | 88.69th | v3 (v2023.03.01) |
| Sep 14, 2023 | 2.16% (0.02162) | 87.94th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.88% (0.01884) | 86.57th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.86% (0.05857) | 90.50th | v2 (v2022.01.01) |
| Apr 24, 2022 | 5.86% (0.05857) | 89.64th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.20% (0.05203) | 88.64th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.20% (0.05203) | 75.22th | v2 (v2022.01.01) |
No CWE recorded.
References (16)
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00014.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00016.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00055.html vendor-advisoryx_refsource_SUSE
- http://www.debian.org/security/2016/dsa-3600 vendor-advisoryx_refsource_DEBIAN
- http://www.mozilla.org/security/announce/2016/mfsa2016-51.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_SECTRACK
- http://www.ubuntu.com/usn/USN-2993-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/errata/RHSA-2016:1217 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2016-2821 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1271460 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1342892 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-2821
- https://www.cve.org/CVERecord?id=CVE-2016-2821
- https://www.mozilla.org/security/announce/2016/mfsa2016-51.html
Change history (0)
No recorded changes yet.