Buffer overflow in Tendacn Ac9
CVE-2020-20746
A stack-based buffer overflow in the httpd server on Tenda AC9 V15.03.06.60_EN allows remote attackers to execute arbitrary code or cause a denial of service (DoS) via a crafted POST request to /goform/SetStaticRouteCfg.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.029 (86.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000
Affected products
- Tendacn Ac9 — versions 3.0
- Tendacn Ac9 Firmware — versions 15.03.06.60_en
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cwe.mitre.org/data/definitions/121.html (Technical Description)
- github.com/grapefruitvul/vulinfo/blob/master/tenda/vul1.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-20746?
- CVE-2020-20746 is a high-severity vulnerability in Tendacn Ac9, classified under Out-of-bounds Write. CVSS score: 7.2/10. Published 2021-09-30.
- How severe is CVE-2020-20746?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2020-20746 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.