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CVE-2019-5815

20
FAUCET Score

CVE-2019-5815 is a type confusion vulnerability in libxslt versions prior to 1.1.33, specifically within the xsltNumberFormatGetMultipleLevel function, affecting products like Debian Linux and xmlsoft libxslt. This flaw could allow an unauthenticated attacker to trigger heap corruption by providing specially crafted XML data. Rated as HIGH severity (CVSS 7.5), it carries a significant impact of high availability loss, although confidentiality and integrity are not directly affected. While there are no known public exploits or Metasploit/Nuclei modules, and it's not listed on the KEV catalog, the vulnerability has garnered some community discussion and media coverage, indicating a degree of awareness despite its inactive exploitation status.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.1.33CPE matchmatch criteria
cpe:2.3:a:xmlsoft:libxslt:*:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
< 74.0.3729.108CPE match
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
1.82%
Probability of exploitation in next 30 days
EPSS Percentile
76.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0182 is in the 59th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

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 (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: chromium-browser-0:74.0.3729.108-1.el6_10
View patch
rubygemspatch availablevia ghsa
Product: nokogiriFixed in: 1.10.5

Vendor Advisories (2)

rubygemsGHSA-vmfx-gcfq-wvm2high

Nokogiri implementation of libxslt vulnerable to heap corruption

May 24, 2022
redhatCVE-2019-5815Moderate

chromium-browser: Heap buffer overflow in Blink

Apr 23, 2019

References

bugs.chromium.org / p/chromium/issues/detail
gitlab.gnome.org / GNOME/libxslt/commit/08b62c25871b38d5d573515ca8a065b4b8f64f6b
lists.debian.org / debian-lts-announce/2022/09/msg00010.html