CVE-2026-25243
High7.7redis-server RESTORE invalid memory access may allow remote code executiontitle from the CVE record
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.
- CVSS
- 7.7v4.0
- EPSS (exploit probability)
- 4.0%91th pct
- CISA KEV
- Not listed
EPSS trendFIRST daily scores, last 90 days
Daily values
| Score date | EPSS | Percentile |
|---|---|---|
| 2026-10-25 | 4.0% | 90.5% |
| 2026-10-24 | 3.7% | 89.6% |
| 2026-10-23 | 3.7% | 89.6% |
| 2026-10-22 | 3.7% | 89.6% |
| 2026-10-21 | 3.7% | 89.6% |
| 2026-10-20 | 3.7% | 89.5% |
| 2026-10-19 | 3.7% | 89.5% |
| 2026-10-18 | 3.7% | 89.5% |
| 2026-10-17 | 3.7% | 89.5% |
| 2026-10-16 | 3.7% | 89.5% |
| 2026-10-15 | 3.7% | 89.5% |
| 2026-10-14 | 3.7% | 89.5% |
| 2026-10-13 | 3.7% | 89.4% |
| 2026-10-12 | 3.7% | 89.4% |
| 2026-10-11 | 3.7% | 89.4% |
| 2026-10-10 | 3.7% | 89.4% |
| 2026-10-09 | 3.7% | 89.3% |
| 2026-10-08 | 3.7% | 89.3% |
| 2026-10-07 | 3.7% | 89.3% |
| 2026-10-06 | 3.7% | 89.3% |
| 2026-10-05 | 3.7% | 89.3% |
| 2026-10-04 | 3.7% | 89.3% |
| 2026-10-03 | 3.7% | 89.3% |
| 2026-10-02 | 3.7% | 89.3% |
| 2026-10-01 | 3.7% | 89.3% |
| 2026-09-30 | 3.7% | 89.3% |
| 2026-09-29 | 3.7% | 89.3% |
| 2026-09-27 | 3.7% | 89.2% |
| 2026-09-26 | 3.7% | 89.2% |
| 2026-09-25 | 3.7% | 89.2% |
| 2026-09-24 | 3.7% | 89.2% |
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
Learn
Why it happened and what stops it
The weakness (CWE)
How attackers use it (ATT&CK)
Typical for this kind of weakness across CISA KEV exploits (CTID), not specific to this CVE.
How it's exploited
What the attacker gets
Controls that mitigate it (NIST SP 800-53)
- CM-6Configuration SettingsConfiguration Management · mitigates 8 of these techniques
- SI-3Malicious Code ProtectionSystem and Information Integrity · mitigates 8 of these techniques
- SI-4System MonitoringSystem and Information Integrity · mitigates 8 of these techniques
- CA-7Continuous MonitoringSecurity Assessment and Authorization · mitigates 7 of these techniques
- CM-7Least FunctionalityConfiguration Management · mitigates 7 of these techniques
- AC-4Information Flow EnforcementAccess Control · mitigates 6 of these techniques
Affected products
- redis redis
Coverage1 article
References
- https://github.com/redis/redis/releases/tag/8.6.3
- https://github.com/redis/redis/security/advisories/GHSA-c8h9-259x-jff4
- https://access.redhat.com/errata/RHSA-2026:14316
- https://access.redhat.com/errata/RHSA-2026:23229
- https://access.redhat.com/errata/RHSA-2026:25216
- https://access.redhat.com/errata/RHSA-2026:25219
- https://access.redhat.com/errata/RHSA-2026:25925
- https://access.redhat.com/errata/RHSA-2026:26008
- https://access.redhat.com/errata/RHSA-2026:26233
- https://access.redhat.com/errata/RHSA-2026:26306
- https://access.redhat.com/errata/RHSA-2026:26540
- https://access.redhat.com/errata/RHSA-2026:27716
- https://access.redhat.com/errata/RHSA-2026:27787
- https://access.redhat.com/errata/RHSA-2026:28139
- https://access.redhat.com/errata/RHSA-2026:28142
- https://access.redhat.com/errata/RHSA-2026:29817
- https://access.redhat.com/errata/RHSA-2026:33427
- https://access.redhat.com/security/cve/CVE-2026-25243
- https://bugzilla.redhat.com/show_bug.cgi?id=2466828
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25243.json