Risk Letters

Exploited vulnerability

CVE-2026-25243

TLP:CLEAR

Redis redis Heap-based Buffer Overflow

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.

Facts

  • Vendor: redis
  • Product: redis
  • CVSS: 8.8
  • EPSS (probability of exploitation within 30 days): 4 %
  • First known exploitation: 17 October 2026
  • First seen by Risk Letters: 6 May 2026

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD