CVE-2021-40854
CVE-2021-40854 is a high-severity vulnerability in Anydesk with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 4.6
- EPSS exploit prediction: 0% (10th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-269
- Affected product: Anydesk
- Published:
- Last modified:
Description
AnyDesk before 6.2.6 and 6.3.x before 6.3.3 allows a local user to obtain administrator privileges by using the Open Chat Log feature to launch a privileged Notepad process that can launch other applications.
Frequently asked questions
- What is CVE-2021-40854?
- AnyDesk before 6.2.6 and 6.3.x before 6.3.3 allows a local user to obtain administrator privileges by using the Open Chat Log feature to launch a privileged Notepad process that can launch other applications.
- How severe is CVE-2021-40854?
- CVE-2021-40854 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-40854 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-40854?
- CVE-2021-40854 affects Anydesk. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-40854?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-40854 published?
- CVE-2021-40854 was published on 2021-10-14 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:anydesk:anydesk:*:*:*:*:*:windows:*:*
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