CVE-2026-71933

criticalpriority · track · 36OT risk · elevatedEPSS 0.006 · 46 %ileNL
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.55% (46th) EPSS
CVSS 9.1 · critical
Is it mine?
29 products
Check your exposure
Who says so?
1 sources
ncsc_nl

EPSS · scored 2026-10-27

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.

01

cvss

Technical severity, 0–10. One row per scoring source.

9.1
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.8–9.1

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Hprimary · disclosure@vulncheck.comexploitability 3.9 · impact 5.2
v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Hsecondary · NCSC-NL NL
v4.08.8highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · disclosure@vulncheck.com
v4.06.8mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-862USCWE-862US
04

affected products (29)

Products and version ranges known to be affected.

showing 20 of 29
05

advisories (1)

Vendor and ecosystem advisories describing this.

  • NCSC-2026-0328Kwetsbaarheden verholpen in DrayTek VigorSwitchNL2026-08-26csaf · ncsc_nlNL

    DrayTek heeft meerdere kwetsbaarheden verholpen in de VigorSwitch productlijn.

06

sources

Which sources assert this record, and when.

ncsc_nlNVDCVE.orgMITRE
published 2026-08-24modified 2026-08-26
07

references (2) nvd

External citations — patches, advisories, analysis.

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