CVE-2021-20796 json
Directory traversal vulnerability in the management screen of Cybozu Remote Service 3.1.8 allows a remote authenticated attacker to upload…
published 2021-10-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-8208
- cvss
- 6.5
- version 3.1, NVD
- 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
Directory traversal vulnerability in the management screen of Cybozu Remote Service 3.1.8 allows a remote authenticated attacker to upload an arbitrary file via unspecified vectors.
Exploit prediction
1.52% 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 |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N |
Affected products
- Cybozu, Inc. Cybozu Remote Service
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
kb.cybozu.support
/article/37427
vendor-advisory
-
jvn.jp
/en/jp/JVN52694228/index.html
third-party-advisory
Sources
- CVE List CVE-2021-20796
- NVD CVE-2021-20796
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