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NVD / CVE Program· CNA mitre

CVE-2026-66373: Redis before 8.8.0, in the unusual case where an authenticated attacker can execute RESTORE, allows remote code execution via a RESTORE…

HighCVSS 7.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 30/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.87% (FIRST EPSS); higher than 59.3% of all records.
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: Redis Redis 8.8.0; azl3 valkey 8.0.11-1 on Azure Linux 3.0 Release Notes.

Low priority for now. Upgrade to Redis Redis 8.8.0; azl3 valkey 8.0.11-1 on Azure Linux 3.0 Release Notes or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Redis before 8.8.0, in the unusual case where an authenticated attacker can execute RESTORE, allows remote code execution via a RESTORE payload where the same NACK (pending entry) is referenced by more than one consumer, because deleting both consumers via XGROUP DELCONSUMER leads to a double free. NOTE: this issue exists because of an incomplete fix for CVE-2026-25243.

Published
Jul 24, 2026
Updated
Sep 9, 2026
EPSS
0.8% · 59th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.8%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · mitre
7.5
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-66373

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Using redis? Add it to your stack and be the first to know about CVEs like this one. (Redis)

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When you'll hear from us

  • when a new CVE affecting this product is published
  • when a record in your stack enters KEV or is weaponized

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits every 10 minutes on paid plans, on the hour on the free plan.

Is Redis on your server exposed to the internet?Run a port scan

Your free account also gets you

  • CVE alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools, at most 30 a day (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every Monday

Is Redis on your server exposed to the internet?

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Versions reported by the vendor

Affected version ranges reported by the assigning authority (mitre). Independent of NVD's CPE analysis and usually ahead of it.

  • Redis Redis

    • before 8.8.0affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:10valkeybefore 8.0.11-1.el10_28.0.11-1.el10_2
AlmaLinux:10valkey-develbefore 8.0.11-1.el10_28.0.11-1.el10_2
AlmaLinux:8redisbefore 6.2.24-1.module_el8.10.0+4271+7f8f19af6.2.24-1.module_el8.10.0+4271+7f8f19af
AlmaLinux:8redis-develbefore 6.2.24-1.module_el8.10.0+4271+7f8f19af6.2.24-1.module_el8.10.0+4271+7f8f19af
AlmaLinux:8redis-docbefore 6.2.24-1.module_el8.10.0+4271+7f8f19af6.2.24-1.module_el8.10.0+4271+7f8f19af
AlmaLinux:9redisbefore 6.2.24-1.el9_86.2.24-1.el9_8
AlmaLinux:9redis-develbefore 6.2.24-1.el9_86.2.24-1.el9_8
AlmaLinux:9redis-docbefore 6.2.24-1.el9_86.2.24-1.el9_8
AlmaLinux:9valkeybefore 8.0.10-1.el9_88.0.10-1.el9_8
AlmaLinux:9valkey-develbefore 8.0.10-1.el9_88.0.10-1.el9_8
Debian:12redisbefore 5:7.0.15-1~deb12u95:7.0.15-1~deb12u9
Red Hat:enterprise_linux_eus:10.0valkeybefore 0:8.0.11-1.el10_00:8.0.11-1.el10_0
Red Hat:enterprise_linux_eus:10.0valkey-debuginfobefore 0:8.0.11-1.el10_00:8.0.11-1.el10_0
Red Hat:enterprise_linux_eus:10.0valkey-debugsourcebefore 0:8.0.11-1.el10_00:8.0.11-1.el10_0
Red Hat:enterprise_linux_eus:10.0valkey-develbefore 0:8.0.11-1.el10_00:8.0.11-1.el10_0
Red Hat:enterprise_linux:10.2valkeybefore 0:8.0.11-1.el10_20:8.0.11-1.el10_2
Red Hat:enterprise_linux:10.2valkey-debuginfobefore 0:8.0.11-1.el10_20:8.0.11-1.el10_2
Red Hat:enterprise_linux:10.2valkey-debugsourcebefore 0:8.0.11-1.el10_20:8.0.11-1.el10_2
Red Hat:enterprise_linux:10.2valkey-develbefore 0:8.0.11-1.el10_20:8.0.11-1.el10_2
Red Hat:enterprise_linux:8::appstreamredisbefore 0:6.2.24-1.module+el8.10.0+24746+7b800ac50:6.2.24-1.module+el8.10.0+24746+7b800ac5
Red Hat:enterprise_linux:8::appstreamredis-debuginfobefore 0:6.2.24-1.module+el8.10.0+24746+7b800ac50:6.2.24-1.module+el8.10.0+24746+7b800ac5
Red Hat:enterprise_linux:8::appstreamredis-debugsourcebefore 0:6.2.24-1.module+el8.10.0+24746+7b800ac50:6.2.24-1.module+el8.10.0+24746+7b800ac5
Red Hat:enterprise_linux:8::appstreamredis-develbefore 0:6.2.24-1.module+el8.10.0+24746+7b800ac50:6.2.24-1.module+el8.10.0+24746+7b800ac5
Red Hat:enterprise_linux:8::appstreamredis-docbefore 0:6.2.24-1.module+el8.10.0+24746+7b800ac50:6.2.24-1.module+el8.10.0+24746+7b800ac5

+69

Same product

redis: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-0543It was discovered, that redis, a persistent key-value database, due to a packaging issue, is prone to a (Debian-specific) Lua sandbox…KEV
    100Now
  • CVE-2025-49844Redis Lua Use-After-Free may lead to remote code execution
    64This week
  • CVE-2023-36824Heap overflow in COMMAND GETKEYS and ACL evaluation in Redis
    58Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-23631May 5, 2026 · redis-server Lua use-after-free may allow remote code execution
    25Monitor
  • ← EarlierCVE-2026-25243May 5, 2026 · redis-server RESTORE invalid memory access may allow remote code execution
    31Monitor
  • Later →CVE-2026-81934Aug 27, 2026 · Redis TLS pending-data list use-after-free
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Redis Redis8.8.0Vendor (CNA)
azl3 valkey 8.0.11-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
almalinux:redis6.2.24-1.module_el8.10.0+4271+7f8f19af · AlmaLinux:8Package registry (OSV)
almalinux:redis-devel6.2.24-1.module_el8.10.0+4271+7f8f19af · AlmaLinux:8Package registry (OSV)
almalinux:redis-doc6.2.24-1.module_el8.10.0+4271+7f8f19af · AlmaLinux:8Package registry (OSV)
almalinux:valkey8.0.11-1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:valkey-devel8.0.11-1.el10_2 · AlmaLinux:10Package registry (OSV)
debian:redis5:7.0.15-1~deb12u9 · Debian:12Package registry (OSV)
red hat:redis0:6.2.24-1.module+el8.10.0+24746+7b800ac5 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:redis-debuginfo0:6.2.24-1.module+el8.10.0+24746+7b800ac5 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:redis-debugsource0:6.2.24-1.module+el8.10.0+24746+7b800ac5 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:redis-devel0:6.2.24-1.module+el8.10.0+24746+7b800ac5 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:redis-doc0:6.2.24-1.module+el8.10.0+24746+7b800ac5 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:valkey0:9.0.5-0.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:valkey-compat-redis0:9.0.5-0.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:valkey-compat-redis-devel0:9.0.5-0.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:valkey-debuginfo0:8.0.11-1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:valkey-debugsource0:8.0.11-1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:valkey-devel0:8.0.11-1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:valkey-devel0:9.0.5-0.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:valkey-doc0:9.0.5-0.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:valkey-rdma0:9.0.5-0.1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
rocky linux:redis0:6.2.24-1.module+el8.10.0+40313+282db117 · Rocky Linux:8Package registry (OSV)
rocky linux:valkey0:8.0.11-1.el10_2 · Rocky Linux:10Package registry (OSV)
suse:redis6.2.6-150400.3.49.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSPackage registry (OSV)
suse:redis77.0.8-150500.3.34.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Not on record for this CVE: researcher credit · variant or chain candidate.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-415 · Double Free

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records