CVE-2026-25243

CVE Enrichment

CVSS: 7.7 HIGH
EPSS: 4.03%
EPSS Percentile: 90.55%
CISA KEV: Not listed

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.

Technical Details

CVSS Version: 4.0
CNA / NVD Source: [email protected]
Published: 06-May-2026 00:17
Last Modified: 25-Jul-2026 18:10
EPSS Date: 2026-10-27
CWE: CWE-122

CVSS Vector


            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 /
                            E:X /
                            CR:X /
                            IR:X /
                            AR:X /
                            MAV:X /
                            MAC:X /
                            MAT:X /
                            MPR:X /
                            MUI:X /
                            MVC:X /
                            MVI:X /
                            MVA:X /
                            MSC:X /
                            MSI:X /
                            MSA:X /
                            S:X /
                            AU:X /
                            R:X /
                            V:X /
                            RE:X /
                            U:X

Affected Products / Versions

redis / redis
Version / affected range: * · before (exclusive) 8.6.3
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*

References

Last enrichment sync: 28-Oct-2026 00:49
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

During analysis of the Valkey instances deployed in the cloud infrastructure, we found that the software version in use was vulnerable to CVE-2026-25243. Researchers Chain Cloud Infrastructure Flaws to Bypass Tenant Isolation

MITRE ATT&CK (8)

Vendors (1)

Products (13)

Tools (1)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.