Stack corruption via unchecked TimeRule week copy
Published Aug 5, 2022 · Updated Apr 15, 2025
Stack-based buffer overflow in TCL LINKHUB Mesh Wi-Fi AC1200 MS1G_00_01.00_14 allows physically proximate attackers to corrupt stack memory. The confsrv addTimeGroup function passes the attacker-controlled TimeRule week string to strcpy without checking it against the destination stack buffer size. Access to the device Wi-Fi network and port 9003 is required; the documented consequence is stack corruption, with no demonstrated code execution or specific crash behavior.
Summary
What happened
Stack-based buffer overflow in TCL LINKHUB Mesh Wi-Fi AC1200 MS1G_00_01.00_14 allows physically proximate attackers to corrupt stack memory. The confsrv addTimeGroup function passes the attacker-controlled TimeRule week string to strcpy without checking it against the destination stack buffer size. Access to the device Wi-Fi network and port 9003 is required; the documented consequence is stack corruption, with no demonstrated code execution or specific crash behavior.
The record
- CVE
- CVE-2022-25996
- Published
- Aug 5, 2022
- Updated
- Apr 15, 2025
- Vendor
- TCL
- Product
- TCL LINKHUB Mesh Wi-Fi AC1200
- Classifications
- CWE-121, CWE-787
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 5, 2022CVE publishedPublication date reported by the CVE source.
- Apr 15, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=MS1G_00_01.00_14
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo