Vulnerability Database

328,409

Total vulnerabilities in the database

CVE-2024-49040

Microsoft Exchange Server Spoofing Vulnerability

  • Published: Nov 12, 2024
  • Updated: Nov 16, 2025
  • CVE: CVE-2024-49040
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CWEs:

Software From Fixed in
microsoft / exchange_server 2016-cumulative_update_6 2016-cumulative_update_6.x
microsoft / exchange_server 2016-cumulative_update_1 2016-cumulative_update_1.x
microsoft / exchange_server 2016-cumulative_update_5 2016-cumulative_update_5.x
microsoft / exchange_server 2016-cumulative_update_2 2016-cumulative_update_2.x
microsoft / exchange_server 2016-cumulative_update_7 2016-cumulative_update_7.x
microsoft / exchange_server 2016-cumulative_update_8 2016-cumulative_update_8.x
microsoft / exchange_server 2019-cumulative_update_1 2019-cumulative_update_1.x
microsoft / exchange_server 2019-cumulative_update_2 2019-cumulative_update_2.x
microsoft / exchange_server 2019-cumulative_update_3 2019-cumulative_update_3.x
microsoft / exchange_server 2019-cumulative_update_4 2019-cumulative_update_4.x
microsoft / exchange_server 2016 2016.x
microsoft / exchange_server 2016-cumulative_update_10 2016-cumulative_update_10.x
microsoft / exchange_server 2016-cumulative_update_11 2016-cumulative_update_11.x
microsoft / exchange_server 2016-cumulative_update_12 2016-cumulative_update_12.x
microsoft / exchange_server 2016-cumulative_update_13 2016-cumulative_update_13.x
microsoft / exchange_server 2016-cumulative_update_14 2016-cumulative_update_14.x
microsoft / exchange_server 2016-cumulative_update_15 2016-cumulative_update_15.x
microsoft / exchange_server 2016-cumulative_update_9 2016-cumulative_update_9.x
microsoft / exchange_server 2019 2019.x
microsoft / exchange_server 2019-cumulative_update_10 2019-cumulative_update_10.x
microsoft / exchange_server 2019-cumulative_update_11 2019-cumulative_update_11.x
microsoft / exchange_server 2019-cumulative_update_12 2019-cumulative_update_12.x
microsoft / exchange_server 2019-cumulative_update_5 2019-cumulative_update_5.x
microsoft / exchange_server 2019-cumulative_update_6 2019-cumulative_update_6.x
microsoft / exchange_server 2019-cumulative_update_7 2019-cumulative_update_7.x
microsoft / exchange_server 2019-cumulative_update_8 2019-cumulative_update_8.x
microsoft / exchange_server 2019-cumulative_update_9 2019-cumulative_update_9.x
microsoft / exchange_server 2016-cumulative_update_16 2016-cumulative_update_16.x
microsoft / exchange_server 2016-cumulative_update_17 2016-cumulative_update_17.x
microsoft / exchange_server 2016-cumulative_update_18 2016-cumulative_update_18.x
microsoft / exchange_server 2016-cumulative_update_19 2016-cumulative_update_19.x
microsoft / exchange_server 2016-cumulative_update_20 2016-cumulative_update_20.x
microsoft / exchange_server 2016-cumulative_update_21 2016-cumulative_update_21.x
microsoft / exchange_server 2016-cumulative_update_22 2016-cumulative_update_22.x
microsoft / exchange_server 2016-cumulative_update_3 2016-cumulative_update_3.x
microsoft / exchange_server 2016-cumulative_update_4 2016-cumulative_update_4.x

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.