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CVE-2021-37415

97
FAUCET Score

CVE-2021-37415 is a critical authentication bypass vulnerability affecting Zoho ManageEngine ServiceDesk Plus versions prior to 11302, allowing unauthorized access to certain REST-API URLs. With a CVSS score of 9.8, this flaw is easily exploitable over the network without authentication, enabling full compromise of confidentiality, integrity, and availability. The vulnerability is actively exploited in the wild, as confirmed by its inclusion in CISA's KEV catalog, and has garnered significant community discussion and media coverage, though no public Metasploit or ExploitDB modules are currently available.

Impacted Technologies

VendorProductVersion(s)CPE
11.0CPE matchmatch criteria
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.0:11005:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.0:11006:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.0:11007:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.0:11008:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.0:11009:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
99.85%
Probability of exploitation in next 30 days
EPSS Percentile
100.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Dec 1, 2021
Nuclei: CVE-2021-37415 · Dec 9, 2025
This CVE's current EPSS score of 0.9985 is in the 100th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
manageengine.com
Product
manageengine.com / products/service-desk/on-premises/readme.html
Release Notes