Arbitrary file upload in Anydesk
CVE-2021-44426
An issue was discovered in AnyDesk before 6.2.6 and 6.3.x before 6.3.5. An upload of an arbitrary file to a victim's local ~/Downloads/ directory is possible if the victim is using the AnyDesk Windows client to connect to a remote machine, if an attacker is also connected remotely with AnyDesk to the same remote machine. The upload is done without any approval or action taken by the victim.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (65.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.012 · change: +0.001
Affected products
Weakness classification (CWE)
References
- anydesk.com/en/downloads/windows (Product, Vendor Advisory)
- argus-sec.com/discovering-tunneling-service-security-flaws-in-anydesk-remote-ap… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-44426?
- CVE-2021-44426 is a high-severity vulnerability in Anydesk, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2022-09-12.
- How severe is CVE-2021-44426?
- High severity. CVSS v3 base score is 8.8 out of 10.