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CVE-2026-5548: Tenda AC10 httpd fromSysToolChangePwd stack-based overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-05 · updated 2026-07-24
• Weakness: CWE-119

Description

A vulnerability was found in Tenda AC10 16.03.10.10_multi_TDE01. Affected by this vulnerability is the function fromSysToolChangePwd of the file /bin/httpd. Performing a manipulation of the argument sys.userpass results in stack-based buffer overflow. The attack can be initiated remotely.

Affected products

• Tenda AC10: 16.03.10.10_multi_tde01

References

• https://github.com/somanyerrors/tenda-ac10v4-vulnerabilities/blob/main/findings/CRITICAL-04-stackoverflow-fromsystoolchangepwd.md
• https://vuldb.com/submit/782297
• https://vuldb.com/vuln/355312
• https://vuldb.com/vuln/355312/cti
• https://www.tenda.com.cn/

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