CVE-2018-5122
9.8
CRITICAL · CVSS 3.0 · EPSS 2.8% (pctl 86)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
A potential integer overflow in the "DoCrypt" function of WebCrypto was identified. If a means was found of exploiting it, it could result in an out-of-bounds write. This vulnerability affects Firefox < 58.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.83% — more likely to be exploited than 86% of all CVEs |
| Weakness | CWE-190 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2018-06-11 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| mozilla | firefox |
References
- http://www.securityfocus.com/bid/102786
- http://www.securitytracker.com/id/1040270
- https://bugzilla.mozilla.org/show_bug.cgi?id=1413841
- https://usn.ubuntu.com/3544-1/
- https://www.mozilla.org/security/advisories/mfsa2018-02/
- http://www.securityfocus.com/bid/102786
- http://www.securitytracker.com/id/1040270
- https://bugzilla.mozilla.org/show_bug.cgi?id=1413841
- https://usn.ubuntu.com/3544-1/
- https://www.mozilla.org/security/advisories/mfsa2018-02/
→ the Explorer · watch your stack · NVD