Firefox vulnerability

An integer overflow during the parsing of XML using the Expat library. This vulnerability affects Firefox < 50.

Published 11 Jun 2018Updated 8 Oct 202612 sources
CVSS 9.8

What happened

An integer overflow during the parsing of XML using the Expat library. This vulnerability affects Firefox < 50.

Affected versions

Firefox: unspecified through before 50 (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.