CVE-2018-6340

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CVSS 3.1

8.1 high

EPSS

1%p71

Published

Dec 31, 2018 (Dec 31, 2018)

Modified

Jun 17, 2026

Description

The Memcache::getextendedstats function can be used to trigger an out-of-bounds read. Exploiting this issue requires control over memcached server hostnames and/or ports. This affects all supported versions of HHVM (3.30 and 3.27.4 and below).

Vendors: facebook
Products: hhvm
Weakness: CWE-125
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.4%)

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