CVE-2025-26793
Raw vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/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:P/AU:X/R:X/V:X/RE:X/U:XSummary
CVE-2025-26793 is a critical-severity Use of Default Password (CWE-1393) vulnerability in Ycombinator (inferred from references). Its CVSS base score is 9.3 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Default Accounts (T1078.001); ranked in the top 18% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to CM-6 (Configuration Settings) and IA-5 (Authenticator Management) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
The vulnerability affects the Web GUI configuration panel in Hirsch (formerly Identiv and Viscount) Enterphone MESH systems through version 2024. It stems from hardcoded default credentials (username "freedom", password "viscount") that are not changed during initial setup and require multiple manual steps to update afterward, combined with exposure of the mesh.webadmin.MESHAdminServlet endpoint. This is tracked under CWE-1393 and carries a CVSS 4.0 score of 9.3.
Remote attackers with no authentication can reach affected systems over the Internet and obtain administrative access. Successful exploitation grants control over building entry systems and the ability to retrieve personally identifiable information belonging to residents in multiple Canadian and U.S. apartment buildings.
Vendor guidance states that affected deployments are not following manufacturer recommendations to replace the default password. Public reporting, including detailed analysis at ericdaigle.ca and discussion on Hacker News, indicates that the issue enables straightforward remote compromise without additional authentication bypasses. The associated EPSS score has remained in the 0.26 range with only minor fluctuation between current and peak values.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-4246
Vulnerability Data
The Web GUI configuration panel of Hirsch (formerly Identiv and Viscount) Enterphone MESH through 2024 ships with default credentials (username freedom, password viscount). The administrator is not prompted to change these credentials on initial configuration, and changing the credentials requires…
more
many steps. Attackers can use the credentials over the Internet via mesh.webadmin.MESHAdminServlet to gain access to dozens of Canadian and U.S. apartment buildings and obtain building residents' PII. NOTE: the Supplier's perspective is that the "vulnerable systems are not following manufacturers' recommendations to change the default password."
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Authenticator management requires verification of identity at initial distribution and secure handling that directly stops default passwords from remaining in use.
Configuration settings establish the most restrictive secure baselines, which include changing or disabling default passwords.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Credential management directly requires replacing default passwords with unique, strong credentials.
Hardened configuration baselines explicitly prohibit default passwords, covering most of the weakness but not all identity-management aspects.
Vulnerability scanning will discover default-password instances, enabling remediation, yet does not itself prevent their initial use.
Authentication policies can enforce non-default passwords but do not address the full scope of credential lifecycle.
Authorization policies assume credentials already exist and are not default; least-privilege helps limit impact but does not prevent defaults.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Mandates secure handling and change of authentication secrets, directly addressing default passwords.
Configuration management processes typically enforce changing defaults during hardening.
Requires secure authentication mechanisms, which includes replacing or disabling default credentials.
Utility programs often ship with defaults; control requires secure configuration before use.
Privileged accounts must not retain factory passwords, reducing risk of default-credential abuse.