CVE-2019-5815

Type confusion in xsltNumberFormatGetMultipleLevel prior to libxslt 1.1.33 could allow attackers to potentially exploit heap corruption via crafted XML data.

Published: 2019-12-11 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-5815 is rated Moderate Risk (40.3/100): CVSS High severity, with low exploitation likelihood (EPSS 0.11%). Review affected assets and schedule 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-2019-5815

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 2025-11-21 0.45% 0.11% -0.33%
2 2025-11-18 0.12% 0.45% +0.32%
3 2025-03-30 — 0.12% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-5815

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P 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:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2019-5815

GitHub Security Advisory for CVE-2019-5815

GHSA-vmfx-gcfq-wvm2 · Severity: high · Ecosystem: rubygems — Nokogiri implementation of libxslt vulnerable to heap corruption

OS Trackers for CVE-2019-5815

vendor priority summary link
alpine high CVE-2019-5815: 1 source package rows (libxslt); 5 state rows across 5 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 0, open 5. https://security.alpinelinux.org/vuln/CVE-2019-5815
debian not yet assigned CVE-2019-5815 not yet assigned priority: Debian including 2 source packages (chromium, libxslt), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. https://security-tracker.debian.org/tracker/CVE-2019-5815
gentoo high CVE-2019-5815: 1 GLSA(s) (201908-18), 2 atom(s) (www-client/chromium, www-client/google-chrome); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2019-5815
redhat medium — https://access.redhat.com/security/cve/CVE-2019-5815
ubuntu medium CVE-2019-5815 medium priority: Ubuntu including 2 source packages (chromium-browser, libxslt), 16 status rows across 9 suites (bionic, cosmic, disco, focal, jammy, kinetic, trusty, upstream, xenial): not-affected 9, released 5, DNE 2. https://ubuntu.com/security/CVE-2019-5815

Affected software / configurations for CVE-2019-5815

Vendor Product Version Raw CPE
xmlsoft libxslt < 1.1.33 cpe:2.3:a:xmlsoft:libxslt:*:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

References for CVE-2019-5815

cvelogic Threat Intelligence