What is CVE-2019-5815?

CVE-2019-5815 is a high-severity vulnerability in Google Chrome, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2019-12-11.

How severe is CVE-2019-5815?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Google Chrome

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.

Vulnerability class: Buffer Overflow

Published 2019-12-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.018 (78.5th percentile), scored 2026-10-22.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Google Chrome — versions unspecified
Xmlsoft Libxslt
Debian Linux — versions 10.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2019-5815?: CVE-2019-5815 is a high-severity vulnerability in Google Chrome, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2019-12-11.
How severe is CVE-2019-5815?: High severity. CVSS v3 base score is 7.5 out of 10.