← Global Threat Landscape
CVE-2019-11707
CWE-843
Critical
97.1
RPSRPS range: 0–105; KEV-listed vulnerabilities can receive an exploitation amplifier.
Description
A type confusion vulnerability can occur when manipulating JavaScript objects due to issues in Array.pop. This can allow for an exploitable crash. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 60.7.1, Firefox < 67.0.3, and Thunderbird < 60.7.2.
Source: NVD
Signals
- CVSS
- 8.8
- High · v3.1
- EPSS
- 37.69%
- Probability of exploitation in the next 30 days (FIRST)
- CISA KEV
- In CISA KEV since May 2022
- Fix commit
- No known fix commit
- Sources: MoreFixes, FreshFixes
- Weakness
- CWE-843
- Published
- 23 Jul 2019
- Last modified 27 Oct 2025
How to read these signals: RPS · EPSS · CISA KEV · Data sources
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Data as of 7 Oct 2026, 05:16 UK time