CVE-2026-49169 Vulnerability Analysis & Exploit Details

CVE-2026-49169
Vulnerability Scoring

8.0
/10
Very High Risk

Highly exploitable, CVE-2026-49169 poses a critical security risk that could lead to severe breaches.

Attack Complexity Details

  • Attack Complexity: High
    Exploits require significant effort and special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: High
    High-level privileges are required for exploitation.
  • Scope: Changed
    Successful exploitation can impact components beyond the vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2026-49169 Details

Status: Analyzed

Last updated: 🕓 16 Jul 2026, 16:13 UTC
Originally published on: 🕔 14 Jul 2026, 17:16 UTC

Time between publication and last update: 1 days

CVSS Release: version 3

CVSS3 Source

secure@microsoft.com

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2026-49169 Vulnerability Summary

CVE-2026-49169: Use after free in DNS Server allows an authorized attacker to execute code over a network.

Assessing the Risk of CVE-2026-49169

Access Complexity Graph

The exploitability of CVE-2026-49169 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-2026-49169

The exploitability of CVE-2026-49169 is influenced by multiple factors. Security teams should analyze system configurations and apply appropriate countermeasures to mitigate threats.

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-2026-49169, 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-2026-49169, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2026-49169 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2026-49169 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: High
    CVE-2026-49169 can disrupt system operations, potentially causing complete denial of service (DoS).

CVE-2026-49169 References

External References

CWE Common Weakness Enumeration

CWE-416

Vulnerable Configurations

  • cpe:2.3:o:microsoft:windows_server_2025:-:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:-:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.1742:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.1742:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.2033:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.2033:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.2314:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.2314:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.2605:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.2605:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.2894:*:*:*:-:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.2894:*:*:*:-:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.3107:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.3107:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.3194:*:*:*:-:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.3194:*:*:*:-:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.3403:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.3403:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.3476:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.3476:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.3775:*:*:*:-:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.3775:*:*:*:-:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.3781:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.3781:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.3981:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.3981:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4061:*:*:*:-:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4061:*:*:*:-:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4066:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4066:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4270:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4270:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4349:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4349:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4652:*:*:*:-:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4652:*:*:*:-:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4656:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4656:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4851:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4851:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4946:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.4946:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.6508:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.6508:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.6563:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.6563:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.6584:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.6584:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.6588:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.6588:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.6899:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.6899:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.6901:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.6901:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.6905:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.6905:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.7092:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.7092:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.7171:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.7171:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.7178:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.7178:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.7392:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.7392:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.7456:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.7456:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.7462:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.7462:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.7623:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.7623:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32230:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32230:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32234:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32234:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32236:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32236:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32313:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32313:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32370:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32370:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32463:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32463:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32522:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32522:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32690:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32690:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32698:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32698:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32772:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32772:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32860:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32860:*:*:*:*:*:x64:*
  • cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32995:*:*:*:*:*:x64:*
    cpe:2.3:o:microsoft:windows_server_2025:10.0.26100.32995:*:*:*:*:*:x64:*

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