CVE-2020-8515

critical · 9.8Actively exploited

On the CISA Known Exploited Vulnerabilities catalog

Apply updates per vendor instructions.

Added 2021-11-03Remediation due 2022-05-03

A public exploit / detection template exists

Weaponised detection is publicly available, which meaningfully raises real-world risk regardless of CVSS. nuclei-templates →

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. This issue has been fixed in Vigor3900/2960/300B v1.5.1.

9.8

CVSS

100.0%

EPSS (exploit prob.)

100th

EPSS percentile

2020-02-01

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-78

Affected products

Vendor	Product	Affected versions
draytek	vigor2960_firmware	1.3.1
draytek	vigor2960	all versions
draytek	vigor300b_firmware	1.3.3
draytek	vigor300b_firmware	1.4.2.1
draytek	vigor300b_firmware	1.4.4
draytek	vigor300b	all versions
draytek	vigor3900_firmware	1.4.4
draytek	vigor3900	all versions

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2020-8515