CVE-2019-11930
highpriority · track · 40EPSS 0.032 · 88 %ileEUUSEPSS · scored 2026-10-26
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (25)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://github.com/facebook/hhvm/commit/524d2e60cfe910406ec6109e4286d7edd545ab36cnnvd
- https://hhvm.com/blog/2019/10/28/security-update.htmlcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2019-11930cnnvd
- https://www.facebook.com/security/advisories/cve-2019-11930cnnvd
- https://github.com/facebook/hhvm/commit/524d2e60cfe910406ec6109e4286d7edd545ab36enisa_euvd
- https://hhvm.com/blog/2019/10/28/security-update.htmlenisa_euvd
- https://www.facebook.com/security/advisories/cve-2019-11930enisa_euvd
- https://github.com/facebook/hhvm/commit/524d2e60cfe910406ec6109e4286d7edd545ab36Patchnvd
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