# CVE-2026-92925: Redis: redis: out-of-bounds read via crafted cluster bus packets

Status: published. Published: 2026-09-17. Updated: 2026-11-05.

A flaw was found in Redis community. The cluster bus packet parser, responsible for handling PING, PONG, and MEET packets, fails to properly validate string-carrying extensions for null-termination. This oversight allows a remote attacker to craft a malicious packet, leading to an out-of-bounds read when the packet's payload is processed. Successful exploitation of this vulnerability could result in the disclosure of sensitive information or a remote denial of service (DoS).

## Remediation

- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. (source: CNA: redhat)

## Affected products and versions

- Red Hat / Red Hat Enterprise Linux 10 (valkey): ≥ 0:8.0.7-1.el10_1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (valkey): ≥ 0:8.0.7-1.el9_7; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (redis:7): ≥ 9080020260821173335.9; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions (redis:7): ≥ 9040020260917140622.9; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Support (redis:7): ≥ 9060020260917140656.9; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Pen Drive Powered by Red Hat Lightspeed (pen-drive/pen-drive-scanner-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat 3scale API Management Platform 2 (3scale-amp2/backend-rhel8): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat 3scale API Management Platform 2 (3scale-amp2/system-rhel8): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat 3scale API Management Platform 2 (3scale-amp2/system-rhel9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (redis:6/redis): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (redis): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Hardened Images (valkey): Version range not reported. Source: CNA: redhat

## Severity and prioritization

- CVSS 3.1: 7.1 (high); CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H; source: CNA: redhat

- CISA KEV: No listing in collected sources

- EPSS: 0.71% as of 2026-11-04; percentile 53.54%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-125

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHSA-2026:3443 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:3507 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:65120 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:69520 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:69521 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2026-92925 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2535971 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://github.com/redis/redis/commit/37894faeea11e2db28b9fc2af378a762d2c36523 (CNA: redhat)

- https://github.com/redis/redis/pull/15263 (CNA: redhat)

- https://github.com/redis/redis/releases/tag/8.10.0 (CNA: redhat)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2026-92925; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-92925; retrieved 2026-11-05; source updated Not reported

Revision: ef03cbcac758a9a0040098017760c1fb7d4e83ffd5411ec1830529e270bac7a4

Canonical: https://y2.dev/cve/CVE-2026-92925

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