RCE in Totolink A720r
CVE-2021-27710
Command Injection in TOTOLINK X5000R router with firmware v9.1.0u.6118_B20201102, and TOTOLINK A720R router with firmware v4.1.5cu.470_B20200911 allows remote attackers to execute arbitrary OS commands by sending a modified HTTP request. T…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.079 (94.0th percentile) — read the EPSS interpretation.
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.
Affected products
- Totolink A720r
- Totolink A720r_firmware — versions 4.1.5cu.470_b20200911
- Totolink X5000r
- Totolink X5000r_firmware — versions 9.1.0u.6118_b20201102
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-27710?
- CVE-2021-27710 is a critical-severity vulnerability in Totolink A720r, classified under OS Command Injection. CVSS score: 9.8/10. Published 2021-04-14.
- How severe is CVE-2021-27710?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-27710 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.