TL;DR
Redis addresses a critical remote code execution vulnerability, CVE-2025-49844, by releasing fixed versions and recommending best practices to protect instances.
Key Points
Highlight key points with color coding based on sentiment (positive, neutral, negative).A critical remote code execution vulnerability in Redis, identified as CVE-2025-49844, involves a Lua use-after-free issue, allowing authenticated users to execute remote code.
To protect Redis instances, it is recommended to restrict network access, enforce strong authentication, and limit permissions.
The vulnerability affects all Redis versions with Lua scripting, with fixed versions including Redis Software 7.22.2-20 and above.
If an incorrect version was upgraded to, such as 7.22.2-12 or 7.22.2-14, it is advised to upgrade to the correct fixed version, 7.22.2-20.
Indicators of potential exploitation include unauthorized access, unexpected network traffic, anomalous command execution, and unexplained server crashes.
Key Numbers
Present key numerics and statistics in a minimalist format.The CVSS score for the critical remote code execution vulnerability in Redis identified as CVE-2025-49844.
The fixed Redis Software version for the vulnerability.
The fixed Redis Software version for the vulnerability.
The fixed Redis Software version for the vulnerability.
The fixed Redis Software version for the vulnerability.
The fixed Redis Software version for the vulnerability.
The fixed Redis OSS/CE version for the vulnerability.
The fixed Redis OSS/CE version for the vulnerability.
The fixed Redis OSS/CE version for the vulnerability.
The fixed Redis OSS/CE version for the vulnerability.
The fixed Redis Stack version for the vulnerability.
The fixed Redis Stack version for the vulnerability.
Stakeholder Relationships
An interactive diagram mapping entities directly or indirectly involved in this news. Drag nodes to rearrange them and see relationship details.Organizations
Key entities and stakeholders, categorized for clarity: people, organizations, tools, events, regulatory bodies, and industries.They are responsible for identifying, patching, and releasing updates to fix the Redis vulnerability CVE-2025-49844.
Providers who offer Redis as a service are responsible for applying patches to their infrastructure to protect their customers from the vulnerability.
Tools
Key entities and stakeholders, categorized for clarity: people, organizations, tools, events, regulatory bodies, and industries.The software affected by the critical remote code execution vulnerability CVE-2025-49844.
Timeline of Events
Timeline of key events and milestones.A blog post was published detailing the critical remote code execution vulnerability CVE-2025-49844.
The Redis blog post was updated to correct the fixed version from 7.22.2-12 to 7.22.2-20.
Another update to the Redis blog post corrected the fixed version from 7.22.2-14 to 7.22.2-20.
Redis recently found itself in the spotlight with a critical remote code execution vulnerability, CVE-2025-49844, that was revealed in a blog post on October 3, 2025. This vulnerability, affecting various Redis versions, sent ripples of concern through the developer and sysadmin communities. After all, Redis is a go-to for data storage and caching, and the thought of an unpatched system potentially allowing attackers to execute arbitrary code is enough to make anyone uneasy. The blog post didn't mince words about the risks, urging immediate action to prevent possible data breaches or system compromises.
Then, in a bit of a twist, the Redis team had to update their blog post on October 27, 2025, correcting the fixed version from 7.22.2-12 to 7.22.2-20. For developers and IT teams scrambling to patch their systems, this correction was more than just a minor detail. Accurate versioning is crucial - get it wrong, and you might as well leave the door wide open for attackers. Just when everyone thought they had it sorted, another update came on October 30, further adjusting the fixed version to 7.22.2-20. These back-to-back updates are a stark reminder of the changing nature of software maintenance and the constant need to keep an eye on version changes.
This whole episode with Redis is a textbook example of the challenges developers and system administrators face in keeping systems secure. It's not just about knowing there's a vulnerability; it's about staying on top of the patches and updates that fix them. For those managing Redis instances, these updates weren't just technical footnotes - they were critical pieces of information that could make or break the security and stability of their systems.
Additional Resources
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