Mozilla: Buffer overflow parsing HTML5 fragments (MFSA 2016-50)
Published Jun 13, 2016
8.8
HIGHCVSS 3.0
EPSS 23.96%
Description
Heap-based buffer overflow in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 allows remote attackers to execute arbitrary code via foreign-context HTML5 fragments, as demonstrated by fragments within an SVG element.
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:L/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 (23 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 23.96% (0.23957) | 97.77th | v5 (v2026.06.15) |
| Sep 22, 2026 | 23.96% (0.23957) | 97.73th | v5 (v2026.06.15) |
| Sep 21, 2026 | 16.86% (0.16858) | 96.96th | v5 (v2026.06.15) |
| Sep 6, 2026 | 23.96% (0.23957) | 97.68th | v5 (v2026.06.15) |
| Sep 5, 2026 | 16.86% (0.16858) | 96.90th | v5 (v2026.06.15) |
| Aug 30, 2026 | 23.96% (0.23957) | 97.67th | v5 (v2026.06.15) |
| Aug 28, 2026 | 16.86% (0.16858) | 96.88th | v5 (v2026.06.15) |
| Aug 24, 2026 | 23.96% (0.23957) | 97.66th | v5 (v2026.06.15) |
| Aug 23, 2026 | 16.86% (0.16858) | 96.87th | v5 (v2026.06.15) |
| Jun 15, 2026 | 24.04% (0.24039) | 97.55th | v5 (v2026.06.15) |
| Feb 18, 2026 | 65.03% (0.65031) | 98.43th | v4 (v2025.03.14) |
| Apr 8, 2025 | 66.28% (0.66282) | 98.41th | v4 (v2025.03.14) |
| Mar 30, 2025 | 68.65% (0.68646) | 98.51th | v4 (v2025.03.14) |
| Mar 29, 2025 | 60.20% (0.60201) | 97.53th | v4 (v2025.03.14) |
| Mar 17, 2025 | 68.65% (0.68646) | 98.51th | v4 (v2025.03.14) |
| Feb 18, 2025 | 63.07% (0.63070) | 98.04th | v3 (v2023.03.01) |
| Jul 13, 2024 | 61.81% (0.61811) | 97.86th | v3 (v2023.03.01) |
| Jan 30, 2024 | 61.35% (0.61347) | 97.53th | v3 (v2023.03.01) |
| Mar 7, 2023 | 59.67% (0.59668) | 97.15th | v3 (v2023.03.01) |
| Mar 6, 2023 | 8.83% (0.08830) | 93.97th | v2 (v2022.01.01) |
| Apr 24, 2022 | 8.83% (0.08830) | 93.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.87% (0.07871) | 92.62th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.87% (0.07871) | 81.58th | v2 (v2022.01.01) |
References (17)
- 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/mfsa2016-50.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-2016-2819 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1270381 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1342891 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-2819
- https://www.cve.org/CVERecord?id=CVE-2016-2819
- https://www.exploit-db.com/exploits/44293/ exploitx_refsource_EXPLOIT-DB
- https://www.mozilla.org/security/announce/2016/mfsa2016-50.html
Change history (0)
No recorded changes yet.