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CVE-2026-47784

CVSS 8.1 · High EPSS 0.07% · P22

Possible ATT&CK Techniques 1AI

T1207 · Rogue Domain Controller

Affected Version Matrix 1

VendorProductVersion RangeStatus
memcachedmemcached< 1.6.42affected
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I. Basic Information for CVE-2026-47784

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过时间差异性导致的信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Memcached 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Memcached是美国memcached community社区的一套高性能的分布式内存对象缓存系统。 Memcached 1.6.42之前版本存在安全漏洞，该漏洞源于SASL密码数据库认证中密码数据存在时序侧信道，因为sasl_server_userdb_checkpass使用了memcmp进行比较。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
memcachedmemcached 0 ~ 1.6.42 -

II. Public POCs for CVE-2026-47784

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 8165 chars
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III. Intelligence Information for CVE-2026-47784

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Patches & Fixes for CVE-2026-47784 (2)

Vendor Pages for CVE-2026-47784 (1)

IV. Related Vulnerabilities

Same product: memcached
Same vendor: memcached
Same weakness: CWE-208

V. Comments for CVE-2026-47784

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