RCE in Draytek Vigor2960
CVE-2020-8515
DrayTek Vigor2960 1.3.1_Beta, Vigor3900 1.4.4_Beta, and Vigor300B 1.3.3_Beta, 1.4.2.1_Beta, and 1.4.4_Beta devices allow remote code execution as root (without authentication) via shell metacharacters to the cgi-bin/mainfunction.cgi URI. T…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 1.000 (100.0th 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
- Draytek Vigor2960
- Draytek Vigor2960_firmware — versions 1.3.1
- Draytek Vigor300b
- Draytek Vigor300b_firmware — versions 1.3.3, 1.4.2.1, 1.4.4
- Draytek Vigor3900
- Draytek Vigor3900_firmware — versions 1.4.4
- N/a — versions n/a
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- cve@mitre.org (Permissions Required, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2020-8515?
- CVE-2020-8515 is a critical-severity vulnerability in Draytek Vigor2960, classified under OS Command Injection. CVSS score: 9.8/10. Published 2020-02-01.
- How severe is CVE-2020-8515?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-8515 known to be exploited?
- Yes. CVE-2020-8515 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 44 public proof-of-concept repositories are indexed.