CVE-2019-9810 EXPLOIT
8.8
HIGH · CVSS 3.1 · EPSS 29.7% (pctl 98)
Patch early
A public exploit exists.
Description
Incorrect alias information in IonMonkey JIT compiler for Array.prototype.slice method may lead to missing bounds check and a buffer overflow. This vulnerability affects Firefox < 66.0.1, Firefox ESR < 60.6.1, and Thunderbird < 60.6.1.
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 29.73% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2019-04-26 |
| Last modified | 2026-06-17 |
Affected (6)
| Vendor | Product |
|---|---|
| mozilla | firefox |
| mozilla | thunderbird |
| redhat | enterprise linux |
| redhat | enterprise linux eus |
| redhat | enterprise linux server aus |
| redhat | enterprise linux server tus |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Mozilla FireFox (Windows 10 x64) - Full Chain Client Side Attack | 2019-12-07 |
| exploit-db | Firefox < 66.0.1 - 'Array.prototype.slice' Buffer Overflow | 2019-03-26 |
References
- http://packetstormsecurity.com/files/155592/Mozilla-Firefox-Windows-64-Bit-Chain-Exploit.html
- https://access.redhat.com/errata/RHSA-2019:0966
- https://access.redhat.com/errata/RHSA-2019:1144
- https://bugzilla.mozilla.org/show_bug.cgi?id=1537924
- https://www.mozilla.org/security/advisories/mfsa2019-09/
- https://www.mozilla.org/security/advisories/mfsa2019-10/
- https://www.mozilla.org/security/advisories/mfsa2019-12/
- http://packetstormsecurity.com/files/155592/Mozilla-Firefox-Windows-64-Bit-Chain-Exploit.html
- https://access.redhat.com/errata/RHSA-2019:0966
- https://access.redhat.com/errata/RHSA-2019:1144
- https://bugzilla.mozilla.org/show_bug.cgi?id=1537924
- https://www.mozilla.org/security/advisories/mfsa2019-09/
- https://www.mozilla.org/security/advisories/mfsa2019-10/
- https://www.mozilla.org/security/advisories/mfsa2019-12/
→ the Explorer · watch your stack · NVD