Mozilla: Use-after-free in WebRTC when datachannel is used after being destroyed (MFSA 2015-138)
Published Dec 16, 2015
7.5
HIGHCVSS 2.0
EPSS 4.31%
Description
Use-after-free vulnerability in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.5 allows remote attackers to execute arbitrary code by triggering attempted use of a data channel that has been closed by a WebRTC function.
Affected products
No data.
Configuration 2
- 38.0
- 38.0.1
- 38.0.5
- 38.1.0
- 38.1.1
- 38.2.0
- 38.2.1
- 38.3.0
- 38.4.0
Configuration 4
- 22
- 23
No data.
Red Hat Enterprise Linux 5
firefox-0:38.5.0-2.el5_11
Fixed · RHSA-2015:2657
Red Hat Enterprise Linux 6
firefox-0:38.5.0-2.el6_7
Fixed · RHSA-2015:2657
Red Hat Enterprise Linux 7
firefox-0:38.5.0-3.el7_2
Fixed · RHSA-2015:2657
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-0:38.5.0-2.el5_11 | Fixed | RHSA-2015:2657 |
| Red Hat Enterprise Linux 6 | firefox-0:38.5.0-2.el6_7 | Fixed | RHSA-2015:2657 |
| Red Hat Enterprise Linux 7 | firefox-0:38.5.0-3.el7_2 | Fixed | RHSA-2015:2657 |
| 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.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.31% (0.04309) | 90.85th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.31% (0.04309) | 89.85th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.55% (0.01553) | 79.72th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.96% (0.04956) | 82.39th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.55% (0.01553) | 80.16th | v4 (v2025.03.14) |
| Dec 12, 2024 | 5.93% (0.05926) | 93.73th | v3 (v2023.03.01) |
| Jan 15, 2024 | 5.66% (0.05657) | 92.55th | v3 (v2023.03.01) |
| Mar 7, 2023 | 5.54% (0.05536) | 92.02th | v3 (v2023.03.01) |
| Mar 6, 2023 | 12.25% (0.12248) | 95.30th | v2 (v2022.01.01) |
| Apr 1, 2022 | 12.25% (0.12248) | 94.93th | v2 (v2022.01.01) |
| Feb 4, 2022 | 12.25% (0.12248) | 89.34th | v2 (v2022.01.01) |
References (24)
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174083.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174253.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00021.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00022.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00023.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00038.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00049.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00104.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00007.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00008.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2015-2657.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2015/dsa-3422 vendor-advisoryx_refsource_DEBIAN
- http://www.mozilla.org/security/announce/2015/mfsa2015-138.html x_refsource_CONFIRMVendor Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/79283 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1034426 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2833-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2015-7210 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1218326 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1291585 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-7210
- https://security.gentoo.org/glsa/201512-10 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2015-7210
- https://www.mozilla.org/security/announce/2015/mfsa2015-138.html
Change history (0)
No recorded changes yet.