expat: Out-of-bounds heap read on crafted input causing crash
Published May 26, 2016
9.8
CRITICALCVSS 3.1
EPSS 13.33%
Description
Expat allows context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via a malformed input document, which triggers a buffer overflow.
Affected products
No data.
Configuration 3
- 11
- 1.3
- 11
- 11
Configuration 5
- 12
- 12
- 12
- 12
- 12
- 12
Configuration 6
- 12.04
- 14.04
- 16.04
Configuration 7
- < 2.2.0
Configuration 8
- 8.0
Configuration 10
- < 6.5.1
No data.
Red Hat Enterprise Linux 6
expat-0:2.0.1-13.el6_8
Fixed · RHSA-2016:2824
Red Hat Enterprise Linux 7
expat-0:2.1.0-10.el7_3
Fixed · RHSA-2016:2824
Red Hat JBoss Core Services
httpd
Fixed · RHSA-2018:2486
Red Hat Directory Server 8
expat
Under investigation
Red Hat Enterprise Linux 5
expat
Will not fix
Red Hat Enterprise Linux 5
firefox
Not affected
Red Hat Enterprise Linux 5
thunderbird
Not affected
Red Hat Enterprise Linux 5
xmlrpc-c
Will not fix
Red Hat Enterprise Linux 5
xulrunner
Not affected
Red Hat Enterprise Linux 6
compat-expat1
Will not fix
Red Hat Enterprise Linux 6
firefox
Not affected
Red Hat Enterprise Linux 6
thunderbird
Not affected
Red Hat Enterprise Linux 6
xulrunner
Not affected
Red Hat Enterprise Linux 7
firefox
Not affected
Red Hat Enterprise Linux 7
thunderbird
Not affected
Red Hat Enterprise Linux 7
xulrunner
Not affected
Red Hat JBoss Enterprise Application Platform 6
expat
Will not fix
Red Hat JBoss Enterprise Web Server 2
expat
Will not fix
Red Hat JBoss Enterprise Web Server 3
expat
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | expat-0:2.0.1-13.el6_8 | Fixed | RHSA-2016:2824 |
| Red Hat Enterprise Linux 7 | expat-0:2.1.0-10.el7_3 | Fixed | RHSA-2016:2824 |
| Red Hat JBoss Core Services | httpd | Fixed | RHSA-2018:2486 |
| Red Hat Directory Server 8 | expat | Under investigation | n/a |
| Red Hat Enterprise Linux 5 | expat | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 5 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 5 | xmlrpc-c | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | xulrunner | Not affected | n/a |
| Red Hat Enterprise Linux 6 | compat-expat1 | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 6 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 6 | xulrunner | Not affected | n/a |
| Red Hat Enterprise Linux 7 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 7 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 7 | xulrunner | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 6 | expat | Will not fix | n/a |
| Red Hat JBoss Enterprise Web Server 2 | expat | Will not fix | n/a |
| Red Hat JBoss Enterprise Web Server 3 | expat | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 13.33% (0.13335) | 96.29th | v5 (v2026.06.15) |
| Jun 15, 2026 | 13.33% (0.13335) | 95.90th | v5 (v2026.06.15) |
| Feb 21, 2026 | 2.90% (0.02903) | 86.09th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.58% (0.01583) | 79.90th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.57% (0.06572) | 84.84th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.58% (0.01583) | 80.34th | v4 (v2025.03.14) |
| Jan 31, 2025 | 2.24% (0.02237) | 89.34th | v3 (v2023.03.01) |
| Dec 17, 2024 | 4.13% (0.04130) | 92.08th | v3 (v2023.03.01) |
| Jul 6, 2024 | 0.81% (0.00814) | 81.92th | v3 (v2023.03.01) |
| Jan 12, 2024 | 0.81% (0.00814) | 79.91th | v3 (v2023.03.01) |
| Jun 8, 2023 | 0.40% (0.00405) | 70.02th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.22% (0.00217) | 57.85th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.88% (0.02883) | 83.23th | v2 (v2022.01.01) |
| Feb 13, 2023 | 2.88% (0.02883) | 82.79th | v2 (v2022.01.01) |
| Feb 3, 2023 | 7.56% (0.07557) | 92.54th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.88% (0.02883) | 81.49th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.88% (0.02883) | 64.00th | v2 (v2022.01.01) |
References (33)
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- http://www.securitytracker.com/id/1036348 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1036415 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037705 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
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- https://access.redhat.com/errata/RHSA-2018:2486 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-0718 Vendor Advisory
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- https://kc.mcafee.com/corporate/index?page=content&id=SB10365 x_refsource_CONFIRMThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-0718
- https://security.gentoo.org/glsa/201701-21 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://source.android.com/security/bulletin/2016-11-01.html x_refsource_CONFIRMThird Party Advisory
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- https://www.cve.org/CVERecord?id=CVE-2016-0718
- https://www.tenable.com/security/tns-2016-20 x_refsource_CONFIRMThird Party Advisory
Change history (0)
No recorded changes yet.