Vulnerability in Tenda Ac9
CVE-2020-26728
A vulnerability was discovered in Tenda AC9 v3.0 V15.03.06.42_multi and Tenda AC9 V1.0 V15.03.05.19(6318)_CN which allows for remote code execution via shell metacharacters in the guestuser field to the __fastcall function with a POST request.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.038 (89.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.038 · newest: 0.038 · change: 0.000
Affected products
- Tenda Ac9 — versions 3.0, 1.0
- Tenda Ac9 Firmware — versions 15.03.05.19(6318)_cn, 15.03.05.19\(6318\)_cn, 15.03.06.42_multi
References
- github.com/Lyc-heng/Router/blob/main/Tenda/rce1.md (Broken Link)
- github.com/Lyc-heng/routers/blob/a80b30bccfc9b76f3a4868ff28ad5ce2e0fca180/route… (Exploit, Third Party Advisory)
- github.com/Lyc-heng/routers/blob/main/routers/rce1.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-26728?
- CVE-2020-26728 is a critical-severity vulnerability in Tenda Ac9. CVSS score: 9.8/10. Published 2022-02-11.
- How severe is CVE-2020-26728?
- Critical severity. CVSS v3 base score is 9.8 out of 10.