CVE-2019-11930
9.8
CRITICAL · CVSS 3.1 · EPSS 3.2% (pctl 88)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
An invalid free in mb_detect_order can cause the application to crash or potentially result in remote code execution. This issue affects HHVM versions prior to 3.30.12, all versions between 4.0.0 and 4.8.5, all versions between 4.9.0 and 4.23.1, as well as 4.24.0, 4.25.0, 4.26.0, 4.27.0, 4.28.0, and 4.28.1.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.25% — more likely to be exploited than 88% of all CVEs |
| Weakness | CWE-763 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2019-12-04 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| hhvm |
References
- https://github.com/facebook/hhvm/commit/524d2e60cfe910406ec6109e4286d7edd545ab36
- https://hhvm.com/blog/2019/10/28/security-update.html
- https://www.facebook.com/security/advisories/cve-2019-11930
- https://github.com/facebook/hhvm/commit/524d2e60cfe910406ec6109e4286d7edd545ab36
- https://hhvm.com/blog/2019/10/28/security-update.html
- https://www.facebook.com/security/advisories/cve-2019-11930
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