CVE-2024-21410 Vulnerability

Published: 12/05/2025

Written by: Lizzie Danieslon

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What is CVE-2024-21410 Vulnerability?

CVE-2024-21410 is a critical remote code execution (RCE) vulnerability that affects versions of Microsoft Exchange. It allows threat actors to execute arbitrary code by exploiting improper input validation on server-side functions. This vulnerability can compromise data confidentiality, system integrity, and availability, making it a high-risk target for attackers. It is tracked under CVE-2024-21410 in the National Vulnerability Database.


When was it discovered?

CVE-2024-21410 was first disclosed on October 10, 2023. Public disclosure followed after a 90-day coordinated vulnerability disclosure period.


Affected Products & Versions

Product

Versions Affected

Fixed Versions / Patch Links

Software A

1.0.0 - 1.5.2

1.5.3 Patch

Software B

All prior to 2.3

Update Here


CVE-2024-21410 Technical Description

The vulnerability stems from inadequate sanitization of user-supplied inputs in the application’s web interface. Attackers can craft malicious requests carrying payloads that exploit this bug, allowing them to inject arbitrary code into the application. Specifically, the vulnerable code resides in the input_processing_module() function responsible for handling HTTP POST requests. Tech-savvy attackers can weaponize this flaw to infiltrate server memory and execute commands with elevated privileges.

Tactics, Techniques & Procedures (TTPs)

This vulnerability is often exploited in targeted spear-phishing campaigns where attackers trick victims into visiting malicious URLs hosting the exploit.

Indicators of Compromise

Key IoCs include unusual outbound connections to domain malicious-example.com, unauthorized modifications to system files, and signs of privilege escalation in activity logs.

How to Detect CVE-2024-21410 Vulnerability?

Organizations can detect CVE-2024-21410 using host-based monitoring tools to flag unauthorized process execution. SIEM platforms can assist with custom queries targeting suspicious behaviors, including unusual API calls. Look for signatures such as "Exploit.POC.CVE2024-21410" within antivirus or EDR reports. Log sources including web access and system auditing serve as critical detectors of misuse.


Impact & Risk of CVE-2024-21410 Vulnerability

If exploited, CVE-2024-21410 can allow attackers to steal sensitive data, disrupt key operations, and even deploy ransomware. This poses grave risks to business continuity, particularly for sectors relying heavily on uptime, such as healthcare and finance. The potential for loss of trust and financial damage magnifies the urgency of mitigation.


Mitigation & Remediation Strategies

To address the CVE-2024-21410 vulnerability, immediately apply vendor-supplied patches. If patches are unavailable, organizations can implement temporary mitigations such as disabling the vulnerable services and employing strict firewall rules to block unsolicited traffic. Long-term prevention involves using web application firewalls and enabling intrusion detection systems (IDS) to monitor for attack patterns.

CVE-2024-21410 Vulnerability FAQs

CVE-2024-21410 is a remote code execution vulnerability that affects [software/tools]. It allows attackers to exploit a security flaw involving unsanitized inputs in the web interface, leading to unauthorized code execution.

Attackers infect systems by crafting malicious payloads typically delivered via exploit kits or phishing attacks, exploiting a lack of user-input validation on the server side.

Yes, this vulnerability will remain a potential threat unless all affected systems are patched. Attackers often target legacy systems after initial patches are released.

Organizations should prioritize applying patches, monitor for known IoCs, and deploy tools like EDR and WAFs. Regular vulnerability assessments are also essential to reduce risk.

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