Mozilla: Integer overflow leading to a buffer overflow in nsScriptLoadHandler (MFSA 2016-89, MFSA 2016-90)
Published Jun 11, 2018
7.5
HIGHCVSS 3.0
EPSS 12.26%
Description
A buffer overflow resulting in a potentially exploitable crash due to memory allocation issues when handling large amounts of incoming data. This vulnerability affects Thunderbird < 45.5, Firefox ESR < 45.5, and Firefox < 50.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<50
- Version
-
- Version unspecifiedStatusaffectedConstraints<45.5
- Version
-
- Version unspecifiedStatusaffectedConstraints<45.5
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox | n/a |
| ||||||
| Mozilla | Firefox ESR | n/a |
| ||||||
| Mozilla | Thunderbird | n/a |
|
Configuration 1
Configuration 2
- 8.0
No data.
Red Hat Enterprise Linux 5
firefox-0:45.5.0-1.el5_11
Fixed · RHSA-2016:2780
Red Hat Enterprise Linux 6
firefox-0:45.5.0-1.el6_8
Fixed · RHSA-2016:2780
Red Hat Enterprise Linux 7
firefox-0:45.5.0-1.el7_3
Fixed · RHSA-2016:2780
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-0:45.5.0-1.el5_11 | Fixed | RHSA-2016:2780 |
| Red Hat Enterprise Linux 6 | firefox-0:45.5.0-1.el6_8 | Fixed | RHSA-2016:2780 |
| Red Hat Enterprise Linux 7 | firefox-0:45.5.0-1.el7_3 | Fixed | RHSA-2016:2780 |
| 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:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/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 (31 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 12.26% (0.12263) | 96.06th | v5 (v2026.06.15) |
| Sep 22, 2026 | 12.26% (0.12263) | 95.99th | v5 (v2026.06.15) |
| Sep 21, 2026 | 8.92% (0.08917) | 95.06th | v5 (v2026.06.15) |
| Sep 6, 2026 | 12.26% (0.12263) | 95.91th | v5 (v2026.06.15) |
| Sep 5, 2026 | 8.92% (0.08917) | 94.95th | v5 (v2026.06.15) |
| Aug 30, 2026 | 12.26% (0.12263) | 95.89th | v5 (v2026.06.15) |
| Aug 28, 2026 | 8.92% (0.08917) | 94.92th | v5 (v2026.06.15) |
| Aug 24, 2026 | 12.26% (0.12263) | 95.86th | v5 (v2026.06.15) |
| Aug 23, 2026 | 8.92% (0.08917) | 94.90th | v5 (v2026.06.15) |
| Jun 15, 2026 | 11.48% (0.11485) | 95.45th | v5 (v2026.06.15) |
| May 12, 2025 | 20.61% (0.20609) | 95.23th | v4 (v2025.03.14) |
| Mar 30, 2025 | 22.61% (0.22611) | 95.37th | v4 (v2025.03.14) |
| Mar 29, 2025 | 60.87% (0.60870) | 97.57th | v4 (v2025.03.14) |
| Mar 28, 2025 | 22.61% (0.22611) | 95.37th | v4 (v2025.03.14) |
| Mar 27, 2025 | 60.87% (0.60870) | 98.05th | v4 (v2025.03.14) |
| Mar 20, 2025 | 49.60% (0.49605) | 97.59th | v4 (v2025.03.14) |
| Mar 19, 2025 | 61.24% (0.61238) | 98.10th | v4 (v2025.03.14) |
| Mar 17, 2025 | 49.60% (0.49605) | 97.53th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.09% (0.01091) | 85.00th | v3 (v2023.03.01) |
| Aug 13, 2024 | 0.89% (0.00886) | 82.84th | v3 (v2023.03.01) |
| Aug 10, 2024 | 2.01% (0.02009) | 89.08th | v3 (v2023.03.01) |
| Jan 29, 2024 | 0.89% (0.00886) | 80.81th | v3 (v2023.03.01) |
| Jan 5, 2024 | 0.93% (0.00934) | 81.29th | v3 (v2023.03.01) |
| Dec 12, 2023 | 0.74% (0.00742) | 78.73th | v3 (v2023.03.01) |
| Nov 2, 2023 | 1.01% (0.01011) | 82.07th | v3 (v2023.03.01) |
| Jun 5, 2023 | 0.97% (0.00971) | 81.17th | v3 (v2023.03.01) |
| Apr 1, 2023 | 0.78% (0.00781) | 78.76th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.10% (0.01105) | 82.21th | v3 (v2023.03.01) |
| Mar 6, 2023 | 16.31% (0.16306) | 96.13th | v2 (v2022.01.01) |
| Apr 1, 2022 | 16.31% (0.16306) | 95.78th | v2 (v2022.01.01) |
| Feb 4, 2022 | 16.31% (0.16306) | 92.84th | v2 (v2022.01.01) |
References (14)
- http://rhn.redhat.com/errata/RHSA-2016-2780.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.securityfocus.com/bid/94336 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037298 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-9066 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1299686 x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1395061 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-9066
- https://security.gentoo.org/glsa/201701-15 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2016-9066
- https://www.debian.org/security/2016/dsa-3730 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-89/ x_refsource_CONFIRMVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-90/ x_refsource_CONFIRMVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-93/ x_refsource_CONFIRMVendor Advisory
- https://www.mozilla.org/security/announce/2016/mfsa2016-89.html
Change history (0)
No recorded changes yet.