redis-server use-after-free in unblock client flow may allow remote code execution
CVE-2026-23479 is a use-after-free vulnerability in the redis-server component's unblock client flow. This vulnerability could potentially allow remote code execution if exploited. The issue is categorized under CWE-416, which relates to use-after-free errors. There is no CVSS score available for this vulnerability, and no known exploits in the wild have been reported. The affected products include Microsoft, Azure Linux 3. 0, and valkey. No patch or remediation information is currently provided by the vendor, and this is not a cloud service, so remediation is the responsibility of the user or administrator.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the redis-server's unblock client flow, which may allow an attacker to execute remote code. The vulnerability is tracked as CVE-2026-23479 and is associated with Microsoft products including Azure Linux 3.0. The vulnerability is classified under CWE-416. No CVSS score or detailed vendor advisory is available to confirm patch status or exploitation details.
Potential Impact
If exploited, this vulnerability could allow remote code execution on affected systems running vulnerable versions of redis-server, potentially leading to full system compromise. However, no known exploits are currently reported in the wild, and the absence of a vendor advisory or patch information means the exact impact scope and exploitability remain uncertain.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or workaround is currently provided, users should monitor official Microsoft Security Response Center communications for updates. Until a patch is available, consider limiting exposure of affected redis-server instances to untrusted networks.
redis-server use-after-free in unblock client flow may allow remote code execution
Description
CVE-2026-23479 is a use-after-free vulnerability in the redis-server component's unblock client flow. This vulnerability could potentially allow remote code execution if exploited. The issue is categorized under CWE-416, which relates to use-after-free errors. There is no CVSS score available for this vulnerability, and no known exploits in the wild have been reported. The affected products include Microsoft, Azure Linux 3. 0, and valkey. No patch or remediation information is currently provided by the vendor, and this is not a cloud service, so remediation is the responsibility of the user or administrator.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the redis-server's unblock client flow, which may allow an attacker to execute remote code. The vulnerability is tracked as CVE-2026-23479 and is associated with Microsoft products including Azure Linux 3.0. The vulnerability is classified under CWE-416. No CVSS score or detailed vendor advisory is available to confirm patch status or exploitation details.
Potential Impact
If exploited, this vulnerability could allow remote code execution on affected systems running vulnerable versions of redis-server, potentially leading to full system compromise. However, no known exploits are currently reported in the wild, and the absence of a vendor advisory or patch information means the exact impact scope and exploitability remain uncertain.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or workaround is currently provided, users should monitor official Microsoft Security Response Center communications for updates. Until a patch is available, consider limiting exposure of affected redis-server instances to untrusted networks.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-23479
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a209840e29bf47b50ebe7b0
Added to database: 6/3/2026, 9:10:24 PM
Last enriched: 6/3/2026, 9:16:26 PM
Last updated: 6/4/2026, 4:55:39 AM
Views: 4
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