CVE-2021-42954 json
Zoho Remote Access Plus Server Windows Desktop Binary fixed from 10.1.2121.1 is affected by incorrect access control.
published 2021-11-17 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-29909
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 33%
- public exploits
- 0
- none known
Summary
Zoho Remote Access Plus Server Windows Desktop Binary fixed from 10.1.2121.1 is affected by incorrect access control. The installation directory is vulnerable to weak file permissions by allowing full control for Windows Everyone user group (non-admin or any guest users), thereby allowing privilege escalation, unauthorized password reset, stealing of sensitive data, access to credentials in plaintext, access to registry values, tampering with configuration files, etc.
Patch / fix
- zohocorp manageengine_remote_access_plus 10.1.2121.1
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- medium.com https://medium.com/nestedif/vulnerability-disclosure-improper-filesystem-permission-misconfigured-acls-zoho-r-a-p-56e195464b51 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AC:L/AV:L/A:H/C:H/I:H/PR:L/S:U/UI:N |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-732 Incorrect Permission Assignment for Critical Resource
References
-
medium.com
/nestedif/vulnerability-disclosure-improper-filesystem-permission-misconfigured-acls-zoho-r-a-p-56e195464b51
exploit, third-party-advisory
Sources
- CVE List CVE-2021-42954
- NVD CVE-2021-42954
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.