Staging Environment: Content and features may be unstable or change without notice.
Search for vulnerabilities
Vulnerability details: VCID-8pzj-mq5r-rqcq
Vulnerability ID VCID-8pzj-mq5r-rqcq
Aliases CVE-2018-9251
Summary Loop with Unreachable Exit Condition ('Infinite Loop') The xz_decomp function in xzlib.c in libxml2, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 3.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-9251.json
epss 0.00772 https://api.first.org/data/v1/epss?cve=CVE-2018-9251
epss 0.00772 https://api.first.org/data/v1/epss?cve=CVE-2018-9251
epss 0.00772 https://api.first.org/data/v1/epss?cve=CVE-2018-9251
epss 0.00772 https://api.first.org/data/v1/epss?cve=CVE-2018-9251
epss 0.00772 https://api.first.org/data/v1/epss?cve=CVE-2018-9251
epss 0.00772 https://api.first.org/data/v1/epss?cve=CVE-2018-9251
epss 0.00772 https://api.first.org/data/v1/epss?cve=CVE-2018-9251
epss 0.00772 https://api.first.org/data/v1/epss?cve=CVE-2018-9251
epss 0.00772 https://api.first.org/data/v1/epss?cve=CVE-2018-9251
cvssv3 3.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
archlinux Medium https://security.archlinux.org/AVG-672
archlinux Medium https://security.archlinux.org/AVG-673
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-9251.json
https://api.first.org/data/v1/epss?cve=CVE-2018-9251
https://bugzilla.gnome.org/show_bug.cgi?id=794914
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html
1565318 https://bugzilla.redhat.com/show_bug.cgi?id=1565318
ASA-201810-3 https://security.archlinux.org/ASA-201810-3
ASA-201810-4 https://security.archlinux.org/ASA-201810-4
AVG-672 https://security.archlinux.org/AVG-672
AVG-673 https://security.archlinux.org/AVG-673
CVE-2018-9251 https://nvd.nist.gov/vuln/detail/CVE-2018-9251
RHSA-2020:1827 https://access.redhat.com/errata/RHSA-2020:1827
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-9251.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.735
EPSS Score 0.00772
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:47:38.485578+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/libxml2/CVE-2018-9251.yml 38.0.0