CVE-2026-113391: DrayTek Vigor2960

DrayTek Vigor2960 Upload Endpoint mainfunction.cgi uploadlangs command injection

CVSS 9.4 CriticalCriticalEPSS 0.021 · 81st percentile

Critical, because:

CVSS score 9.4: 9.0 or more.

Published by the CVE Program (CNA: VulDB) at 20 Oct 2026, 12:45 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
DrayTek	Vigor2960	affected 1.5.1.6 Revision 8218 unaffected 1.5.1.7

Identifiers

CVE-2026-113391

CNA

VulDB

Weakness (CWE)

CWE-74 · CWE-77

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.4	Critical	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P	CNA (VulDB)Used for this record
9.9	Critical	3.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C	CNA (VulDB)
9.9	Critical	3.0	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C	CNA (VulDB)
9.0	High	2.0	AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:OF/RC:C	CNA (VulDB)

CISA KEV Not listed.
EPSS 0.021, the 81st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 20 Oct 2026. New records show when each source confirmed them.

Sources

References from the CNA

vuldb.com/vuln/422667 vdb-entrytechnical-description
vuldb.com/vuln/422667/cti signaturepermissions-required
vuldb.com/cve/CVE-2026-113391 third-party-advisory
vuldb.com/submit/992244 third-party-advisory
fw.draytek.com.tw/Vigor2960/Firmware/v1.5.1.7/Vigor2960_v1.5.1.7.zip patch
github.com/yikesoftware/DrayTek_Vigor2960_Security_Analysis/tree/main/cases/DRV2960-0008-authenticated-upload-filename-command-injection exploit

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.