Command execution via timezone stack buffer overflow
Published Nov 19, 2024 · Updated Jul 5, 2026
Stack buffer overflow in Tenda AC6 v2.0 firmware 15.03.06.50 allows remote attackers to execute commands via a crafted timeZone value. The fromSetSysTime handler passes attacker-controlled timeZone text through sscanf into the fixed-size stack buffer timezone_min_buf without enforcing its length. A crafted POST to /goform/SetSysTimeCfg can overwrite control data and drive a ROP chain that invokes system on the router.
Summary
What happened
Stack buffer overflow in Tenda AC6 v2.0 firmware 15.03.06.50 allows remote attackers to execute commands via a crafted timeZone value. The fromSetSysTime handler passes attacker-controlled timeZone text through sscanf into the fixed-size stack buffer timezone_min_buf without enforcing its length. A crafted POST to /goform/SetSysTimeCfg can overwrite control data and drive a ROP chain that invokes system on the router.
The record
- CVE
- CVE-2024-52714
- Published
- Nov 19, 2024
- Updated
- Jul 5, 2026
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- AC6 v2.0 Firmware
- Classifications
- CWE-120, T1059.004
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 19, 2024CVE publishedPublication date reported by the CVE source.
- Jul 5, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=15.03.06.50
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- fromSetSysTime HTTP ROP proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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