libxml2: out-of-bounds memory access when parsing an unclosed HTML comment
Published Apr 11, 2016
9.8
CRITICALCVSS 3.1
EPSS 4.92%
Description
The htmlParseComment function in HTMLparser.c in libxml2 allows attackers to obtain sensitive information, cause a denial of service (out-of-bounds heap memory access and application crash), or possibly have unspecified other impact via an unclosed HTML comment.
Affected products
No data.
Configuration 2
- 7.0
- 8.0
- 9.0
No data.
Red Hat Enterprise Linux 6
libxml2-0:2.7.6-20.el6_7.1
Fixed · RHSA-2015:2549
Red Hat Enterprise Linux 7
libxml2-0:2.9.1-6.el7_2.2
Fixed · RHSA-2015:2550
Red Hat JBoss Web Server 3.0
libxml2
Fixed · RHSA-2016:1089
Red Hat Enterprise Linux 5
libxml2
Will not fix
Red Hat JBoss Enterprise Web Server 2
libxml2
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | libxml2-0:2.7.6-20.el6_7.1 | Fixed | RHSA-2015:2549 |
| Red Hat Enterprise Linux 7 | libxml2-0:2.9.1-6.el7_2.2 | Fixed | RHSA-2015:2550 |
| Red Hat JBoss Web Server 3.0 | libxml2 | Fixed | RHSA-2016:1089 |
| Red Hat Enterprise Linux 5 | libxml2 | Will not fix | n/a |
| Red Hat JBoss Enterprise Web Server 2 | libxml2 | 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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.92% (0.04925) | 91.85th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.79% (0.04790) | 90.76th | v5 (v2026.06.15) |
| Mar 30, 2025 | 4.74% (0.04737) | 88.39th | v4 (v2025.03.14) |
| Mar 29, 2025 | 37.90% (0.37898) | 95.77th | v4 (v2025.03.14) |
| Mar 28, 2025 | 4.74% (0.04737) | 88.41th | v4 (v2025.03.14) |
| Mar 27, 2025 | 37.90% (0.37898) | 96.69th | v4 (v2025.03.14) |
| Mar 20, 2025 | 16.96% (0.16958) | 94.48th | v4 (v2025.03.14) |
| Mar 19, 2025 | 37.90% (0.37898) | 96.75th | v4 (v2025.03.14) |
| Mar 17, 2025 | 16.96% (0.16958) | 94.47th | v4 (v2025.03.14) |
| Dec 17, 2024 | 2.44% (0.02442) | 89.68th | v3 (v2023.03.01) |
| Mar 2, 2024 | 0.89% (0.00890) | 82.15th | v3 (v2023.03.01) |
| Mar 15, 2023 | 0.89% (0.00890) | 80.15th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.84% (0.00836) | 79.44th | v3 (v2023.03.01) |
| Mar 6, 2023 | 17.17% (0.17166) | 96.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 17.17% (0.17166) | 95.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 17.17% (0.17166) | 93.10th | v2 (v2022.01.01) |
References (13)
- http://rhn.redhat.com/errata/RHSA-2016-1089.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.debian.org/security/2015/dsa-3430 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/04/19/4 mailing-listx_refsource_MLISTMailing ListPatch
- http://www.openwall.com/lists/oss-security/2015/09/13/1 mailing-listx_refsource_MLISTMailing List
- http://www.openwall.com/lists/oss-security/2015/12/31/7 mailing-listx_refsource_MLISTMailing List
- http://www.securityfocus.com/bid/79811 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2015-8710 Vendor Advisory
- https://bugzilla.gnome.org/show_bug.cgi?id=746048 x_refsource_CONFIRMIssue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=1213957 Issue Tracking
- https://git.gnome.org/browse/libxml2/commit/?id=e724879d964d774df9b7969fc846605aa1bac54c x_refsource_CONFIRMThird Party Advisory
- https://hackerone.com/reports/57125#activity-384861 x_refsource_MISCThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-8710
- https://www.cve.org/CVERecord?id=CVE-2015-8710
Change history (0)
No recorded changes yet.