PT-2025-21759 · Tenda · Tenda Ac7

Yhryhryhr_Miemie · Published 2025-05-16 · Updated 2025-05-25 · CVE-2025-4809

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Tenda AC7 version 15.03.06.44

Description: A critical issue was found in the function fromSafeSetMacFilter of the file /goform/setMacFilterCfg. The manipulation of the argument deviceList leads to a stack-based buffer overflow. This issue can be exploited remotely.

Recommendations: For Tenda AC7 version 15.03.06.44, as a temporary workaround, consider disabling the fromSafeSetMacFilter function until a patch is available. Restrict access to the /goform/setMacFilterCfg file to minimize the risk of exploitation. Avoid using the deviceList argument in the affected function until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-121

CWE-119

Related Identifiers

BDU:2025-05874

CVE-2025-4809

Affected Products

Tenda Ac7

References · 13

• 🔥 https://lavender-bicycle-a5a.notion.site/Tenda-AC7-fromSafeSetMacFilter-1ed53a41781f80cbbf13c8d4cc405ed1?pvs=4 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-4809 · Security Note
• https://osv.dev/vulnerability/CVE-2025-4809 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-05874 · Security Note
• https://t.me/cvetracker/24065 · Telegram Post
• https://vuldb.com/?id.309264 · Note
• https://twitter.com/CVEnew/status/1923600391104536710 · Twitter Post
• https://lavender-bicycle-a5a.notion.site/Tenda-AC7-fromSafeSetMacFilter-1ed53a41781f80cbbf13c8d4cc405ed1 · Note
• https://vuldb.com/?ctiid.309264 · Note
• https://vuldb.com/?submit.573642 · Note
• https://tenda.com.cn · Note
• https://twitter.com/VulmonFeeds/status/1923534782270427258 · Twitter Post
• https://twitter.com/dailycve/status/1926773087963320438 · Twitter Post