VDB
MSRC_CVE-2020-25639
MSRC_CVE-2020-25639
PUBLISHED
CVSS 4.400000095367432 MEDIUM
Risk Scores
CVSS 3.1
4.400000095367432
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| <cbl2 kernel 5.10.78.1-1 | ||
| CBL Mariner 1.0 | ||
| <cm1 kernel 5.10.60.1-1 | ||
| cm1 kernel 5.10.60.1 | ||
| cbl2 kernel 5.10.78.1 | ||
| CBL Mariner 2.0 |
Exploit Intelligence
- fei9747/CVE-2021-3493 (github-poc-repo)
- Exploit For OverlayFS (github-poc-repo)
- smallkill/CVE-2021-3493 (github-poc-repo)
- ptkhai15/OverlayFS---CVE-2021-3493 (github-poc-repo)
- Ubuntu OverlayFS Local Privesc (github-poc-repo)
- Exploit a 2021 Kernel vulnerability in Ubuntu to become root almost instantly! (github-poc-repo)
- Sornphut/OverlayFS---CVE-2021-3493 (github-poc-repo)
- root Privileges (github-poc-repo)
- CVE-2021-3493 OverlayFS privilege escalation exploit framework with advanced red team features. Includes persistence mechanisms, post-exploitation modules, stealth capabilities, and comprehensive documentation. For authorized testing only. (github-poc-repo)
- Type Local Privilege Escalation exploit for CVE-2021-3493(Ubuntu Kernel vulnerability) documrnted during TryHackme Lab (github-poc-repo)
…and 26 more exploits
Timeline
- Mar 2, 2021 CVE Published
- Dec 16, 2021 CVE Updated
- Feb 13, 2025 PoC Published
- Mar 28, 2025 PoC Published
- Apr 15, 2026 Security Advisory