CVE-2026-21528 Vulnerability Analysis & Exploit Details

CVE-2026-21528
Vulnerability Scoring

6.5
/10
High Risk

If left unpatched, CVE-2026-21528 could lead to major system disruptions or data loss.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2026-21528 Details

Status: Analyzed

Last updated: 🕤 11 Feb 2026, 21:43 UTC
Originally published on: 🕕 10 Feb 2026, 18:16 UTC

Time between publication and last update: 1 days

CVSS Release: version 3

CVSS3 Source

secure@microsoft.com

CVSS3 Type

Primary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVE-2026-21528 Vulnerability Summary

CVE-2026-21528: Binding to an unrestricted ip address in Azure IoT SDK allows an unauthorized attacker to disclose information over a network.

Assessing the Risk of CVE-2026-21528

Access Complexity Graph

The exploitability of CVE-2026-21528 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-21528

With low attack complexity and no required privileges, CVE-2026-21528 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-21528, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-21528, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2026-21528 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: Low
    Exploiting CVE-2026-21528 may cause minor changes to data without severely impacting its accuracy.
  • Availability: None
    CVE-2026-21528 does not impact system availability.

CVE-2026-21528 References

External References

CWE Common Weakness Enumeration

CWE-668

Vulnerable Configurations

  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.0:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.0:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.1:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.1:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.2:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.2:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.3:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.3:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.4:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.4:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.5:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.5:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.6:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.6:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.7:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.7:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.8:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.8:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.9:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.9:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.10:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.10:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.11:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.11:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.12:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.12:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.13:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.13:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.14:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.14:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.15:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.15:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.16:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.16:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.17:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.17:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.18:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.18:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.10.19:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.10.19:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.11.1:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.11.1:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.11.2:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.11.2:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.11.3:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.11.3:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.11.4:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.11.4:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.12.0:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.12.0:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.13.0:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.13.0:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.13.1:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.13.1:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.13.2:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.13.2:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.13.3:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.13.3:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.13.4:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.13.4:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.13.5:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.13.5:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.13.6:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.13.6:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.14.0:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.14.0:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.14.1:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.14.1:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.14.2:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.14.2:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.14.3:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.14.3:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.14.4:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.14.4:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.14.5:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.14.5:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.14.6:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.14.6:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.14.7:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.14.7:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.14.8:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.14.8:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.14.9:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.14.9:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.14.10:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.14.10:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.14.11:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.14.11:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.14.12:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.14.12:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.14.13:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.14.13:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.14.14:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.14.14:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.15.0:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.15.0:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.15.1:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.15.1:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.15.2:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.15.2:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.15.4:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.15.4:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.15.5:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.15.5:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.15.6:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.15.6:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.15.7:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.15.7:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.15.8:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.15.8:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.15.9:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.15.9:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.15.11:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.15.11:*:*:*:*:*:*:*
  • cpe:2.3:a:microsoft:azure_iot_explorer:0.15.12:*:*:*:*:*:*:*
    cpe:2.3:a:microsoft:azure_iot_explorer:0.15.12:*:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2026-21528: Combat Critical CVE Threats

Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.

Other 5 Recently Published CVEs Vulnerabilities

  • CVE-2026-2474 – Crypt::URandom versions from 0.41 before 0.55 for Perl is vulnerable to a heap buffer overflow in the XS function crypt_urandom_getrandom(). The f...
  • CVE-2026-2001 – The WowRevenue plugin for WordPress is vulnerable to unauthorized plugin installation due to a missing capability check in the 'Notice::install_act...
  • CVE-2026-2567 – A vulnerability was detected in Wavlink WL-NU516U1 20251208. This vulnerability affects the function sub_401218 of the file /cgi-bin/nas.cgi. Perfo...
  • CVE-2026-2566 – A security vulnerability has been detected in Wavlink WL-NU516U1 up to 130/260. This affects the function sub_406194 of the file /cgi-bin/adm.cgi. ...
  • CVE-2019-25395 – Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains multiple stored cross-site scripting vulnerabilities in the preferences.cgi script that al...