CVE-2015-8806: canonical ubuntu_linux
Vulnerability summary
CVE-2015-8806 is a high (CVSS 7.5) vulnerability in canonical ubuntu_linux. EPSS estimates a 4.96% chance of exploitation in the next 30 days, higher than 92.2% of scored vulnerabilities.
Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 5% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 6 · Related 3Timeline
- 13-04-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
dict.c in libxml2 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via an unexpected character immediately after the "<!DOCTYPE html" substring in a crafted HTML document.
CVSS metrics
6 scores · 4 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · RubygemsEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
4.96%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
No change 0.00 pp
From 4.96% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- libxml2< 2.9.3+dfsg1-1.1
- debian_linuxEOL8.0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 15.10 | 16.04
RubyGems1 product
- nokogiri≥ 1.6.0, < 1.6.8
Ubuntu1 product
- libxml2< 2.9.1+dfsg1-3ubuntu4.8 | < 2.9.3+dfsg1-1ubuntu0.1
Xmlsoft1 product
- libxml2< 2.9.4
5 vendors · 6 products
References
16 links
- www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlX Refsource CONFIRMThird Party AdvisoryWEB
- www.openwall.com/lists/oss-security/2016/02/03/5Mailing ListX Refsource MLISTThird Party AdvisoryWEB
