CVE-2019-17017

critical
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
9.5

Description

Due to a missing case handling object types, a type confusion vulnerability could occur, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-17017

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-202001-1

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-202001-4

OS impact

OSVersionStatusFixed in
arch archfixed68.4.1-1
debian debiansidfixed72.0-1
debian debianbookwormfixed68.4.0esr-1
debian debianbullseyefixed68.4.0esr-1
debian debianforkyfixed68.4.0esr-1
debian debiantrixiefixed68.4.0esr-1

References

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