PT-2025-29189 · Tenda · Tenda O3V2

Pjq123 · Published 2025-07-04 · Updated 2025-07-11 · CVE-2025-7420

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 O3V2 version 1.0.0.12(3880)

Description: A critical issue exists in Tenda O3V2. The formWifiBasicSet function within the /goform/setWrlBasicInfo file of the httpd component is susceptible to a stack-based buffer overflow. This occurs through the manipulation of the extChannel argument, allowing for remote exploitation. The exploit for this issue has been publicly disclosed.

Recommendations: Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, consider restricting access to the /goform/setWrlBasicInfo file.

Exploit

Fix

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-121

CWE-119

Related Identifiers

BDU:2025-08763

CVE-2025-7420

Affected Products

Tenda O3V2

References · 11

• 🔥 https://github.com/wudipjq/my_vuln/blob/main/Tenda3/vuln_53/53.md · Exploit
• 🔥❌ https://github.com/wudipjq/my_vuln/blob/main/Tenda3/vuln_53/53.md#poc · Exploit, Deleted
• https://osv.dev/vulnerability/CVE-2025-7420 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-7420 · Security Note
• https://bdu.fstec.ru/vul/2025-08763 · Security Note
• https://twitter.com/VulmonFeeds/status/1943533140451995841 · Twitter Post
• https://twitter.com/CVEnew/status/1943668160651215325 · Twitter Post
• https://tenda.com.cn · Note
• https://vuldb.com/?ctiid.315880 · Note
• https://vuldb.com/?submit.608866 · Note
• https://vuldb.com/?id.315880 · Note