CVE-2020-25744 json
SaferVPN before 5.0.3.3 on Windows could allow low-privileged users to create or overwrite arbitrary files, which could cause a denial of s…
published 2020-09-18 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-18396
- cvss
- 8.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 73%
- public exploits
- 0
- none known
Summary
SaferVPN before 5.0.3.3 on Windows could allow low-privileged users to create or overwrite arbitrary files, which could cause a denial of service (DoS) condition, because a symlink from %LOCALAPPDATA%\SaferVPN\Log is followed.
Patch / fix
- safervpn safervpn 5.0.3.3
Exploit prediction
1.42% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- youtube.com https://www.youtube.com/watch?v=0QdRJdA_aos referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
| NVD | 2.0 | 5.5 | AV:N/AC:L/Au:S/C:N/I:P/A:P |
Classification
- Weakness
-
- CWE-59 Improper Link Resolution Before File Access
References
-
youtube.com
/watch?v=0QdRJdA_aos
exploit, third-party-advisory
- medium.com /%40thebinary0x1/safervpn-for-windows-arbitrary-file-overwrite-dos-bdc88fdb5ead
Sources
- CVE List CVE-2020-25744
- NVD CVE-2020-25744
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.