RCE in Totolink A3100r
CVE-2021-44247
Totolink devices A3100R v4.1.2cu.5050_B20200504, A830R v5.9c.4729_B20191112, and A720R v4.1.5cu.470_B20200911 were discovered to contain command injection vulnerability in the function setNoticeCfg. This vulnerability allows attackers to execute arbitrary commands via the IpFrom parameter.
Vulnerability class: Command Injection (OS Command Injection)
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: 0.028 (85.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
- Totolink A3100r
- Totolink A3100r Firmware — versions 4.1.2cu.5050_b20200504
- Totolink A720r
- Totolink A720r Firmware — versions 4.1.5cu.470_b20200911
- Totolink A830r
- Totolink A830r Firmware — versions 5.9c.4729_b20191112
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/pjqwudi/my_vuln/blob/main/totolink/vuln_1/1.md (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-44247?
- CVE-2021-44247 is a critical-severity vulnerability in Totolink A3100r, classified under Command Injection. CVSS score: 9.8/10. Published 2022-02-04.
- How severe is CVE-2021-44247?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-44247 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.