CVE-2026-71933CWE-862broken-access-control

CVE-2026-71933

Critical · published August 24, 2026

CVSS v3.1
9.1
EPSS
1%
Percentile
45.4
In the wild
Unconfirmed
What it is

Multiple DrayTek VigorSwitch models contain unauthorized operation vulnerabilities in multiple syslog functions. The vulnerability is caused by missing authorization checks. A remote attacker can trigger these vulnerabilities via crafted requests to modify configuration, restart services, save startup configuration, or clear logs.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CVSS v4.0
8.8 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00553 · 45.4th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-08-24T22:17Z
References (2)
https://www.draytek.com/about/security-advisory/multiple-vulnerabilities-in-vigorswitch-series-august-2026/ · [email protected]https://www.vulncheck.com/advisories/draytek-vigorswitch-multiple-models-missing-authorization-in-syslog-functions · [email protected]
EPSS history
Timeline
  • 26 AUG 08:24Z
    EPSS moved — → 0%
    epss
  • 24 AUG 17:07Z
    DrayTek VigorSwitch Multiple Models Missing Authorization in Syslog Functions
    cvelistv5