CVE-2021-31840
Last modified
CVE-2021-31840 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. A vulnerability in the preloading mechanism of specific dynamic link libraries in McAfee Agent for Windows prior to 5.7.3 could allow an authenticated, local attacker to perform a DLL preloading attack with unsigned DLLs. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system. EPSS estimates a 0.35% chance of exploitation in the next 30 days.
Description
A vulnerability in the preloading mechanism of specific dynamic link libraries in McAfee Agent for Windows prior to 5.7.3 could allow an authenticated, local attacker to perform a DLL preloading attack with unsigned DLLs. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system. This would result in the user gaining elevated permissions and being able to execute arbitrary code.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mcafee | Mcafee Agent | >= 5.0.0, < 5.7.3 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-31840?
How severe is CVE-2021-31840?
How do I fix CVE-2021-31840?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-31835Cross-Site Scripting vulnerability in McAfee ePolicy Orchest…4.8
- CVE-2021-31836Improper privilege management vulnerability in maconfig for …7.1
- CVE-2021-31837Memory corruption vulnerability in the driver file component…7.8
- CVE-2021-31838A command injection vulnerability in MVISION EDR (MVEDR) pri…9.1
- CVE-2021-31839Improper privilege management vulnerability in McAfee Agent …3.3
- CVE-2021-3184MISP 2.4.136 has XSS via a crafted URL to the app/View/Eleme…6.1
- CVE-2021-31841A DLL sideloading vulnerability in McAfee Agent for Windows …7.3
- CVE-2021-31842XML Entity Expansion injection vulnerability in McAfee Endpo…5.5
- CVE-2021-31843Improper privileges management vulnerability in McAfee Endpo…7.8
- CVE-2021-31844A buffer overflow vulnerability in McAfee Data Loss Preventi…7.3
- CVE-2021-31845A buffer overflow vulnerability in McAfee Data Loss Preventi…7.3
- CVE-2021-31847Improper access control vulnerability in the repair process …7.8
Are you affected by CVE-2021-31840?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST