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Vulnerability record · CVE-2019-11596 · published 29 April 2019

CVE-2019-11596: Memcached null pointer dereference vulnerability

MMemcached · Memcached

In memcached before 1.5.14, a NULL pointer dereference was found in the "lru mode" and "lru temp_ttl" commands. This causes a denial of service when parsing crafted lru command messages in process_lru_command in memcached.c.

7.5 CVSS 3.0 High EPSS 3.0% · top 13.3% CWE-476 · NULL pointer dereference
7.5CVSS 3.0 base score, v2 5.0
3.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
14References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

In memcached before 1.5.14, a NULL pointer dereference was found in the "lru mode" and "lru temp_ttl" commands. This causes a denial of service when parsing crafted lru command messages in process_lru_command in memcached.c.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00060.html
https://github.com/memcached/memcached/commit/d35334f368817a77a6bd1f33c6a5676b2c402c02 PatchThird Party Advisory
https://github.com/memcached/memcached/compare/ee1cfe3...50bdc9f Patch
https://github.com/memcached/memcached/issues/474 ExploitThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UUE3QBMP5UWTXMPKJREUICH
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y2CCWRM4LHB253KG5SPOKRV
https://usn.ubuntu.com/3963-1/ Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00060.html
https://github.com/memcached/memcached/commit/d35334f368817a77a6bd1f33c6a5676b2c402c02 PatchThird Party Advisory
https://github.com/memcached/memcached/compare/ee1cfe3...50bdc9f Patch
https://github.com/memcached/memcached/issues/474 ExploitThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UUE3QBMP5UWTXMPKJREUICH
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y2CCWRM4LHB253KG5SPOKRV
https://usn.ubuntu.com/3963-1/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2019-11596), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.