PT-2022-12624 · Tenda · Tenda Ac Series Router

Cpegg + 2 · Published 2022-02-15 · Updated 2022-02-23 · CVE-2021-46262

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Tenda AC Series Router version AC11 V02.03.01.104 CN

Description The issue is related to a stack buffer overflow in the PPPoE module, which can be exploited by attackers to cause a Denial of Service (DoS) via crafted overflow data.

Recommendations For Tenda AC Series Router version AC11 V02.03.01.104 CN, consider disabling the PPPoE module as a temporary workaround until a patch is available. Restrict access to the PPPoE module to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-46262

Affected Products

Tenda Ac Series Router

References · 4

• 🔥 https://github.com/Ainevsia/CVE-Request/tree/main/Tenda/7 · Exploit
• https://osv.dev/vulnerability/CVE-2021-46262 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-46262 · Security Note
• https://t.me/cibsecurity/37532 · Telegram Post