CVE-2021-42659

There is a buffer overflow vulnerability in the Web server httpd of the router in Tenda router devices such as Tenda AC9 V1.0 V15.03.02.19(6318) and Tenda AC9 V3.0 V15.03.06.42_multi. When setting the virtual service, the httpd program will crash and exit when the super-long list parameter occurs.

CVSS v3 6.5 MEDIUM
CVSS v2.0 6.1 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

6.1^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 6.5 / Impact : 6.9

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/Lyc-heng/routers/blob/main/routers/stack4.md	Exploit Third Party Advisory
https://www.cnvd.org.cn/flaw/show/CNVD-2021-24948	Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:ac9_firmware:15.03.05.19\(6318\):*:*:*:*:*:*:*

cpe:2.3:h:tenda:ac9:1.0:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:tenda:ac9_firmware:15.03.06.42_multi:*:*:*:*:*:*:*

cpe:2.3:h:tenda:ac9:3.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2022-05-24 12:15

Updated : 2024-02-28 19:09

NVD link : CVE-2021-42659

Mitre link : CVE-2021-42659

CVE.ORG link : CVE-2021-42659

JSON object : View

Products Affected

tenda

ac9
ac9_firmware

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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