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CVE-2026-25243— redis-server RESTORE invalid memory access may allow remote code execution

Quick assessment

Affected
redis redis
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Redis是美国Redis公司的一套开源的使用ANSI C编写、支持网络、可基于内存亦可持久化的日志型、键值（Key-Value）存储数据库，并提供多种语言的API。 Redis 8.6.3及之前版本存在安全漏洞，该漏洞源于RESTORE命令未正确验证序列化值，经过身份验证的攻击者可提供特制的序列化有效载荷，触发无效内存访问，可能导致远程代码执行。

AI Predicted 8.6 Difficulty: Moderate EPSS 3.66% · P89

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
redis redis < 8.6.3 affected
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I. Basic Information for CVE-2026-25243

Vulnerability Information
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Vulnerability Title
redis-server RESTORE invalid memory access may allow remote code execution
Source: CVE Program / CVE List V5
Vulnerability Description
Redis is an in-memory data structure store. In versions of redis-server up to 8.6.3, the RESTORE command does not properly validate serialized values. An authenticated attacker with permission to execute RESTORE can supply a crafted serialized payload that triggers invalid memory access and may lead to remote code execution. A workaround is to restrict access to the RESTORE command with ACL rules. This is patched in version 8.6.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Redis 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Redis是美国Redis公司的一套开源的使用ANSI C编写、支持网络、可基于内存亦可持久化的日志型、键值（Key-Value）存储数据库，并提供多种语言的API。 Redis 8.6.3及之前版本存在安全漏洞，该漏洞源于RESTORE命令未正确验证序列化值，经过身份验证的攻击者可提供特制的序列化有效载荷，触发无效内存访问，可能导致远程代码执行。
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

Vendor Product Affected Versions CPE Subscribe
redis redis < 8.6.3 -

II. Public POCs for CVE-2026-25243

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
default-local-qwen3.6 · 11500 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-25243

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Vendor Advisories for CVE-2026-25243 (1)

Vendor Pages for CVE-2026-25243 (1)

Same Patch Batch · redis · 2026-05-05 · 3 CVEs total

CVE-2026-23631 redis-server Lua use-after-free may allow remote code execution
CVE-2026-23479 redis-server use-after-free in unblock client flow may allow remote code execution

IV. Related Vulnerabilities

Same product: redis
Same vendor: redis
Same weakness: CWE-122

V. Comments for CVE-2026-25243

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