Memcached: >> Memcached >> 1.4.32 Security Vulnerabilities
In memcached before 1.6.42, username data for SASL password database authentication has a timing side channel because a loop exits as soon as a valid username is found by sasl_server_userdb_checkpass.
CVSS Score
8.1
EPSS Score
0.001
Published
2026-05-20
In memcached before 1.6.42, password data for SASL password database authentication has a timing side channel because memcmp is used by sasl_server_userdb_checkpass.
CVSS Score
8.1
EPSS Score
0.001
Published
2026-05-20
In Memcached before 1.6.22, a buffer overflow exists when processing multiget requests in proxy mode, if there are many spaces after the "get" substring.
CVSS Score
7.5
EPSS Score
0.001
Published
2023-10-27
In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \n is used instead of \r\n.
CVSS Score
9.8
EPSS Score
0.002
Published
2023-10-27
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 Score
7.5
EPSS Score
0.016
Published
2019-04-29
memcached version prior to 1.4.37 contains an Integer Overflow vulnerability in items.c:item_free() that can result in data corruption and deadlocks due to items existing in hash table being reused from free list. This attack appear to be exploitable via network connectivity to the memcached service. This vulnerability appears to have been fixed in 1.4.37 and later.
CVSS Score
7.5
EPSS Score
0.01
Published
2018-03-13
The try_read_command function in memcached.c in memcached before 1.4.39 allows remote attackers to cause a denial of service (segmentation fault) via a request to add/set a key, which makes a comparison between signed and unsigned int and triggers a heap-based buffer over-read. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-8705.
CVSS Score
7.5
EPSS Score
0.017
Published
2017-07-17