peter bassill · operator
$ cve CVE-2021-42099 JSON

CVE-2021-42099

9.8
CRITICAL · CVSS 3.1 · EPSS 6.8% (pctl 94)

In your normal cycle

Critical by CVSS (9.8), but no sign of active exploitation.

Description

Zoho ManageEngine M365 Manager Plus before 4421 is vulnerable to file-upload remote code execution.

Scoring

CVSS9.8 (CRITICAL, v3.1)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS6.76% — more likely to be exploited than 94% of all CVEs
WeaknessCWE-434
On CISA KEVno
Public exploitnone known
Published2021-11-30
Last modified2026-06-17

Affected (1)

VendorProduct
zohocorpmanageengine m365 manager plus

References

→ the Explorer  ·  watch your stack  ·  NVD