[UPDATE] [medium] Redis: Multiple vulnerabilities allow execution of arbitrary program code

mediumCVE-2026-23631 CVE-2026-25243 CVE-2026-23479 CVE-2026-25588 CVE-2026-25589

A remote, authenticated attacker can exploit multiple vulnerabilities in Redis to execute arbitrary program code.

CSIRTS triage

vendor: Redis product: Redis Remote code execution

What: Multiple vulnerabilities allow a remote authenticated attacker to execute arbitrary program code.
Who is affected: Authenticated users of Redis are affected.
Urgency: Remediation is medium urgency as exploitation requires authentication.
Action: Update to the latest version of Redis to address these vulnerabilities.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: medium
Published: 2026-08-27
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1370

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Moderate exploitation riskCVE-2026-236312.8% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 86% of all EPSS-scored CVEs.
Moderate exploitation riskCVE-2026-252433.7% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 89% of all EPSS-scored CVEs.
Moderate exploitation riskCVE-2026-234791.4% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 70% of all EPSS-scored CVEs.
Moderate exploitation riskCVE-2026-255881.1% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 64% of all EPSS-scored CVEs.
Moderate exploitation riskCVE-2026-255891.5% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 72% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-23631	coverage & exploitation status	NVD · CVE.org
CVE-2026-25243	coverage & exploitation status	NVD · CVE.org
CVE-2026-23479	coverage & exploitation status	NVD · CVE.org
CVE-2026-25588	coverage & exploitation status	NVD · CVE.org
CVE-2026-25589	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownMultiple vulnerabilities in Tenable products (August 4, 2026)cert-fr-avis
unknownMultiple vulnerabilities in Tenable Security Center (July 21, 2026)cert-fr-avis
unknownMultiple vulnerabilities in IBM products (July 17, 2026)cert-fr-avis

Recent advisories for Redis

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownCVE-2026-92002: Affected versions of MISP use Redis to throttle repeated authentication-failure log entries. T…nvd · 2026-09-15
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