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CVE-2017-9050

27
FAUCET Score

CVE-2017-9050 is a heap-based buffer over-read vulnerability in the xmlDictAddString function of libxml2 versions 2.9.4 and earlier, affecting programs like PHP that utilize the library. Rated 7.5 HIGH, this vulnerability can be exploited remotely with low complexity, leading to denial of service due to application crashes. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.9.4CPE matchmatch criteria
cpe:2.3:a:xmlsoft:libxml2:2.9.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.63%
Probability of exploitation in next 30 days
EPSS Percentile
90.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0463 is in the 84th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

redhatpatch availablevia redhat_api
Product: Text-Only JBCS
View patch
rubygemspatch availablevia ghsa
Product: nokogiriFixed in: 1.8.1
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: mingw-libxml2
redhatno patchvia redhat_api
Product: Red Hat JBoss Core ServicesFixed in: libxml2
redhatend of lifevia redhat_api
Product: Red Hat JBoss Enterprise Web Server 3Fixed in: libxml2
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: libxml2
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libxml2
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libxml2

Vendor Advisories (2)

rubygemsGHSA-8c56-cpmw-89x7high

Out-of-bounds read in nokogiri

Dec 13, 2017
redhatCVE-2017-9050Moderate

libxml2: Heap-based buffer over-read in function xmlDictAddString

May 15, 2017

References

lists.apache.org / thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
lists.apache.org / thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
security.gentoo.org / glsa/201711-01
debian.org / security/2017/dsa-3952
openwall.com / lists/oss-security/2017/05/15/1
ExploitMailing ListPatchThird Party Advisory
securityfocus.com / bid/98568
Third Party AdvisoryVDB Entry