CVE-2020-3926 json
ServiSign Windows Versions- Arbitrary File Access
published 2020-02-03 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-25191
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 74%
- public exploits
- 0
- none known
Summary
An arbitrary-file-access vulnerability exists in ServiSign security plugin, as long as the attackers learn the specific API function, they may access arbitrary files on target system via crafted API parameter.
Exploit prediction
1.48% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 7.8 | AV:N/AC:L/Au:N/C:C/I:N/A:N |
Affected products
- CHANGING ServiSign Windows versions
Classification
- Weakness
-
- CWE-552 Files or Directories Accessible to External Parties
References
-
tvn.twcert.org.tw
/taiwanvn/TVN-201910006
third-party-advisory
-
chtsecurity.com
/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce
third-party-advisory
Sources
- CVE List CVE-2020-3926
- NVD CVE-2020-3926
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.