Disclosure summary
An integer overflow during the parsing of XML using the Expat library. This vulnerability affects Firefox < 50.
Source-reported weakness categories
CWE-190
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2016-9063
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| mozilla | firefox | * {"versionEndExcluding":"50"} |
| debian | debian_linux | 8.0 |
| debian | debian_linux | 9.0 |
| debian | debian_linux | 10.0 |
| python | python | * {"versionStartIncluding":"3.6.0","versionEndExcluding":"3.6.2"} |
Original records & references
- NIST NVD record
- CVE Program record
- bugzilla.mozilla.org — Issue Tracking, Vendor Advisory
- www.debian.org — Third Party Advisory
- www.mozilla.org — Vendor Advisory
- bugzilla.mozilla.org — Issue Tracking, Vendor Advisory
- www.debian.org — Third Party Advisory
- www.mozilla.org — Vendor Advisory
PUBLISHED 2018-06-11T17:29:00-04:00
MODIFIED 2026-10-08T17:17:05-04:00
INGESTED 2026-10-10T20:50:18-04:00