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Vulnerability Watch, October 5, 2026: 5 critical CVEs and 2 new vendor and CERT advisories

Every critical-severity CVE NIST published in the past day, plus the latest advisories from national CERTs and vendors.

5 critical CVEs, 2 advisories, NIST NVD, CERTs & vendors

The National Vulnerability Database (NVD) published 5 CVEs rated Critical under CVSS v3 in the 26 hours to this report. Descriptions below are quoted directly from NVD. Scores are NVD or CNA base scores; always confirm against the vendor advisory before prioritizing.

Critical CVEs (NVD)

CVE CVSS Description (NVD)
CVE-2026-105285 10 A security vulnerability has been detected in Totolink A3002MU 1.0.0-B20230403.1455. This affects an unknown function of the file /boafrm/formIpQoS of the component QoS Rule Handler. The manipulation of the argument addQos/comment/entry_name leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.
CVE-2026-105284 10 A weakness has been identified in Totolink A3002MU 1.0.0-B20230403.1455. The impacted element is the function sub_40FCFC of the file /bin/boa of the component Authentication Check. Executing a manipulation can lead to improper authorization. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks.
CVE-2026-105207 9.8 ZITADEL 3.0.0 through 3.4.15 and 4.0.0 before 4.17.3 creates links between user accounts and external identity providers without verifying a primary factor or the caller's permission, including on identify-only Login V2 sessions and via the User Service V2 AddIDPLink endpoint. An unauthenticated attacker knowing a victim's login name can bind their own external IdP identity to the victim's account and then sign in a…
CVE-2026-105209 9.6 ZITADEL 3.x before 3.4.15 and 4.x before 4.17.1 contains an improper authorization vulnerability: when issuing passkey or passwordless enrollment codes, it checks only the organization in the x-zitadel-orgid header, not the target user's organization. Attackers with user-write permission in one organization can obtain an enrollment code for a user in another organization on the same instance and register their own a…
CVE-2026-105215 9.1 ZITADEL before 3.4.14 and 4.x before 4.16.2 contains an authentication bypass in the hosted Login V1 UI because the 'external account not found' registration endpoint trusts client-supplied external identity fields without a completed IdP callback. Unauthenticated attackers can submit forged IDPConfigID and ExternalUserID values to pre-create an account bound to a victim's external IdP identity, which the victim's l…

New advisories from CERTs and vendors

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