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CVE-2021-40539

critical · 9.8Actively exploited

On the CISA Known Exploited Vulnerabilities catalog

Apply updates per vendor instructions.

Added 2021-11-03Remediation due 2021-11-17

A public exploit / detection template exists

Weaponised detection is publicly available, which meaningfully raises real-world risk regardless of CVSS. nuclei-templates

Zoho ManageEngine ADSelfService Plus version 6113 and prior is vulnerable to REST API authentication bypass with resultant remote code execution.

9.8
CVSS
99.0%
EPSS (exploit prob.)
100th
EPSS percentile
2021-09-07
Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-706

Affected products

VendorProductAffected versions
zohocorpmanageengine_adselfservice_plus< 6.1
zohocorpmanageengine_adselfservice_plus6.1
zohocorpmanageengine_adselfservice_plus6.1
zohocorpmanageengine_adselfservice_plus6.1
zohocorpmanageengine_adselfservice_plus6.1
zohocorpmanageengine_adselfservice_plus6.1
zohocorpmanageengine_adselfservice_plus6.1
zohocorpmanageengine_adselfservice_plus6.1
zohocorpmanageengine_adselfservice_plus6.1
zohocorpmanageengine_adselfservice_plus6.1

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2021-40539