PT-2022-12493 · Tenda · Tenda Routers G3+1

Published 2022-02-04 · Updated 2022-02-08 · CVE-2021-45994

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Tenda routers G1 and G3 version 15.11.0.17(9502) CN

Description A stack overflow was discovered in the function formDelDhcpRule, allowing attackers to cause a Denial of Service (DoS) via the delDhcpIndex parameter.

Recommendations For Tenda routers G1 and G3 version 15.11.0.17(9502) CN, consider disabling the formDelDhcpRule function until a patch is available to prevent exploitation via the delDhcpIndex parameter. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-45994

Affected Products

Tenda Routers G1

Tenda Routers G3

References · 6

• https://osv.dev/vulnerability/CVE-2021-45994 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-45994 · Security Note
• https://t.me/cvenotify/26228 · Telegram Post
• https://t.me/cvenotify/26248 · Telegram Post
• https://exchange.xforce.ibmcloud.com/vulnerabilities/218934 · Note
• ❌ https://github.com/pjqwudi/my_vuln/blob/main/Tenda/vuln_12/12.md · Note, Deleted