CVE-2019-13118

In numbers.c in libxslt 1.1.33, a type holding grouping characters of an xsl:number instruction was too narrow and an invalid character/length combination could be passed to xsltNumberFormatDecimal, leading to a read of uninitialized stack data.

Published: 2019-07-01 Last update: 2026-05-28 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2019-13118 is rated Moderate Risk (57.3/100): CVSS Medium severity, with high exploitation likelihood (EPSS 5.15%, 91th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +4.12% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2019-13118

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.03% 5.15% +4.12%
2 2026-01-29 1.21% 1.03% -0.18%
3 2026-01-13 1.21%

Full EPSS history (29 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-13118

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
3.9 1.4 [email protected]
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
3.9 1.4 134c704f-9b21-4f2e-91b3-4a467353bcc0
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
10.0 2.9 [email protected]

Weakness enumeration for CVE-2019-13118

GitHub Security Advisory for CVE-2019-13118

GHSA-cf46-6xxh-pc75 · Severity: high · Ecosystem: rubygems — libxslt Type Confusion vulnerability that affects Nokogiri

OS Trackers for CVE-2019-13118

vendor priority summary link
alpine high CVE-2019-13118: 1 source package rows (libxslt); 20 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 10. https://security.alpinelinux.org/vuln/CVE-2019-13118
debian low CVE-2019-13118 low priority: Debian including 1 source packages (libxslt), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-13118
redhat low https://access.redhat.com/security/cve/CVE-2019-13118
suse low CVE-2019-13118 severity low: SUSE including 283 source package names (0.45.0.7.7.1:libxslt1-1.1.32-3.8.24, 1.19-3.1:libxslt1-1.1.32-3.8.24, …), 401 product×package rows across 103 product lines (Container caasp/v4/nginx-ingress-controller, Container ses/7.1/cephcsi/cephcsi, … (103 product lines)): Known Affected 231, Fixed 170. https://www.suse.com/security/cve/CVE-2019-13118/
ubuntu low CVE-2019-13118 low priority: Ubuntu including 1 source packages (libxslt), 7 status rows across 7 suites (bionic, cosmic, disco, eoan, trusty, upstream, xenial): released 4, ignored 1, needs-triage 1, not-affected 1. https://ubuntu.com/security/CVE-2019-13118

Affected software / configurations for CVE-2019-13118

Vendor Product Version Raw CPE
xmlsoft libxslt 1.1.33 cpe:2.3:a:xmlsoft:libxslt:1.1.33:*:*:*:*:*:*:*
opensuse leap 15.1 cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
netapp active_iq_unified_manager cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
netapp active_iq_unified_manager cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:*
netapp cloud_backup cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
netapp clustered_data_ontap cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
netapp e-series_performance_analyzer cpe:2.3:a:netapp:e-series_performance_analyzer:-:*:*:*:*:*:*:*
netapp e-series_santricity_management_plug-ins cpe:2.3:a:netapp:e-series_santricity_management_plug-ins:-:*:*:*:*:vmware_vcenter:*:*
netapp e-series_santricity_os_controller >= 11.0, <= 11.50.2 cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:*
netapp e-series_santricity_storage_manager cpe:2.3:a:netapp:e-series_santricity_storage_manager:-:*:*:*:*:*:*:*
netapp e-series_santricity_web_services cpe:2.3:a:netapp:e-series_santricity_web_services:-:*:*:*:*:web_services_proxy:*:*
netapp oncommand_insight cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*
netapp oncommand_workflow_automation cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*
netapp ontap_select_deploy_administration_utility cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
netapp plug-in_for_symantec_netbackup cpe:2.3:a:netapp:plug-in_for_symantec_netbackup:-:*:*:*:*:*:*:*
netapp santricity_unified_manager cpe:2.3:a:netapp:santricity_unified_manager:-:*:*:*:*:*:*:*
netapp steelstore_cloud_integrated_storage cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
oracle jdk 1.8.0 cpe:2.3:a:oracle:jdk:1.8.0:update231:*:*:*:*:*:*
fedoraproject fedora 31 cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 19.04 cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
canonical ubuntu_linux 19.10 cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
apple icloud < 7.13 cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*
apple icloud >= 10.0, < 10.6 cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*
apple itunes < 12.9.6 cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:*
apple iphone_os < 12.4 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple mac_os_x 10.12.6 cpe:2.3:o:apple:mac_os_x:10.12.6:security_update_2019-001:*:*:*:*:*:*
apple mac_os_x 10.12.6 cpe:2.3:o:apple:mac_os_x:10.12.6:security_update_2019-002:*:*:*:*:*:*
apple mac_os_x 10.12.6 cpe:2.3:o:apple:mac_os_x:10.12.6:security_update_2019-003:*:*:*:*:*:*
apple mac_os_x 10.13.6 cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-001:*:*:*:*:*:*
apple mac_os_x 10.13.6 cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-002:*:*:*:*:*:*
apple mac_os_x 10.13.6 cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-003:*:*:*:*:*:*
apple macos >= 10.4.6, < 10.14.6 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
apple tvos < 12.4 cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*

References for CVE-2019-13118

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00062.html Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Aug/11 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Aug/13 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Aug/14 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Aug/15 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Jul/22 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Jul/23 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Jul/24 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Jul/26 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Jul/31 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Jul/37 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2019/Jul/38 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/11/17/2 Mailing List Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15069 Permissions Required
https://gitlab.gnome.org/GNOME/libxslt/commit/6ce8de69330783977dd14f6569419489875fb71b Patch Third Party Advisory
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
https://lists.debian.org/debian-lts-announce/2019/07/msg00020.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IOYJKXPQCUNBMMQJWYXOR6QRUJZHEDRZ/
https://oss-fuzz.com/testcase-detail/5197371471822848 Permissions Required
https://seclists.org/bugtraq/2019/Aug/21 Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Aug/22 Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Aug/23 Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Aug/25 Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Jul/35 Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Jul/36 Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Jul/37 Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Jul/40 Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Jul/41 Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Jul/42 Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20190806-0004/ Third Party Advisory
https://security.netapp.com/advisory/ntap-20200122-0003/ Third Party Advisory
https://support.apple.com/kb/HT210346 Third Party Advisory
https://support.apple.com/kb/HT210348 Third Party Advisory
https://support.apple.com/kb/HT210351 Third Party Advisory
https://support.apple.com/kb/HT210353 Third Party Advisory
https://support.apple.com/kb/HT210356 Third Party Advisory
https://support.apple.com/kb/HT210357 Third Party Advisory
https://support.apple.com/kb/HT210358 Third Party Advisory
https://usn.ubuntu.com/4164-1/ Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.html Third Party Advisory
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