CVE-2019-15903

medium
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
5.5

Description

In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: rocky — https://errata.rockylinux.org/RLSA-2020:4484

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2019-15903.html

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-15903

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-201910-17

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-201910-15

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-201910-16

OS impact

OSVersionStatusFixed in
arch archfixed70.0-1
debian debianbookwormfixed0
debian debianbullseyefixed0
debian debianforkyfixed0
debian debiansidfixed0
debian debiantrixiefixed0
suse slesaffected
rockylinux rocky8fixed

References

Verify integrity in audit chain (admin only). AS-IS.