Vulnerability Monitor

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CVE-2021-27705

Buffer Overflow in Tenda G1 and G3 routers with firmware v15.11.0.17(9502)_CN allows remote attackers to execute arbitrary code via a crafted action/"qosIndex "request. This occurs because the "formQOSRuleDel" function directly passes the parameter "qosIndex" to strcpy without limit.

Published

2021-04-14T15:15:13.970

Last Modified

2024-11-21T05:58:27.570

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-120
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System tenda g1_firmware v15.11.0.17\(9502\)_cn Yes
Hardware tenda g1 - No
Operating System tenda g3_firmware v15.11.0.17\(9502\)_cn Yes
Hardware tenda g3 - No
References