CVE-2021-41829 json
Zoho ManageEngine Remote Access Plus before 10.1.2121.1 relies on the application's build number to calculate a certain encryption key.
published 2021-09-30 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-28830
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.2%
- EPSS 3.2% chance of exploitation in 30 days, percentile 88%
- public exploits
- 0
- none known
Summary
Zoho ManageEngine Remote Access Plus before 10.1.2121.1 relies on the application's build number to calculate a certain encryption key.
Patch / fix
- zohocorp manageengine_remote_access_plus 10.1.2121.1
Exploit prediction
3.21% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- medium.com https://medium.com/nestedif/vulnerability-disclosure-statically-derived-encryption-key-zoho-r-a-p-907088263197 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| 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 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-330 Use of Insufficiently Random Values
References
-
medium.com
/nestedif/vulnerability-disclosure-statically-derived-encryption-key-zoho-r-a-p-907088263197
exploit, third-party-advisory
-
manageengine.com
/remote-desktop-management/hotfix-readme.html
vendor-advisory
Sources
- CVE List CVE-2021-41829
- NVD CVE-2021-41829
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.