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 v3.1 NVD

6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 NVD

6.1 MEDIUMAV:A/AC:L/Au:N/C:N/I:N/A:C

EPSS

0.82% chance of exploitation in the next 30 days, 56th percentile

Published

2022-05-24

Updated

2024-08-04

Proof-of-concept exploits (1)

• Lyc-heng/routers/blob/main/routers/stack4.md0★ · 2022-01-05

Security advisories

• https://www.cnvd.org.cn/flaw/show/CNVD-2021-24948

References

• CVE Record
• NVD entry

Related

• CVE-2020-22079
• CVE-2020-26728
• CVE-2021-31624
• CVE-2021-31627