CVE-2019-17026
CVSS v3
8.8
HIGH
EPSS Score
64.8 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 68.4.1, Thunderbird < 68.4.1, and Firefox < 72.0.1.
CISA Known Exploited Vulnerability
- Date Added
- 2021-11-03
- Patch Due Date
- 2022-05-03
- Ransomware Use
- Unknown
Technical details
- Published
- 2020-03-02
- Exploit-DB
- EDB-49864
Frequently asked questions
What is CVE-2019-17026?
Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 68.4.1, Thunderbird < 68.4.1, and Firefox < 72.0.1.
Is CVE-2019-17026 actively exploited?
Yes. CVE-2019-17026 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-05-03.
What is the CVSS score for CVE-2019-17026?
CVE-2019-17026 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2019-17026 affecting your environment?
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