CVE-2019-11936

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CVSS 3.1

9.8 critical

EPSS

1%p72

Published

Dec 4, 2019 (Dec 4, 2019)

Modified

Jun 17, 2026

Description

Various APC functions accept keys containing null bytes as input, leading to premature truncation of input. 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.

Vendors: facebook
Products: hhvm
Weakness: CWE-626
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.5%)

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