VULNERABILITY INTELLIGENCE

CVE-2018-6340

CVSS score8.1 HIGH

EPSS probability1.43%

CISA KEVNot currently listed

Published2018-12-31

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

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).

Weakness classification

CWE-125: Out-of-bounds Read

Primary references

cve-assign@fb.com — Patch, Third Party Advisory
cve-assign@fb.com — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory