How severe is CVE-2021-37927?

CVE-2021-37927 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-37927 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37927?

CVE-2021-37927 primarily affects Zohocorp Manageengine Admanager Plus. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-37927?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-37927 published?

CVE-2021-37927 was published on 2021-09-22 and last updated on 2026-06-17.

CVE-2021-37927

CVE-2021-37927 is a critical-severity vulnerability in Zohocorp Manageengine Admanager Plus with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-347.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-347
Affected product: Zohocorp Manageengine Admanager Plus
Published: 2021-09-22
Last modified: 2026-06-17

Description

Zoho ManageEngine ADManager Plus version 7110 and prior allows account takeover via SSO.

Frequently asked questions

What is CVE-2021-37927?: Zoho ManageEngine ADManager Plus version 7110 and prior allows account takeover via SSO.
How severe is CVE-2021-37927?: CVE-2021-37927 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-37927 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37927?: CVE-2021-37927 primarily affects Zohocorp Manageengine Admanager Plus. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-37927?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-37927 published?: CVE-2021-37927 was published on 2021-09-22 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:zohocorp:manageengine_admanager_plus:*:*:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_admanager_plus:7.1:-:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_admanager_plus:7.1:7100:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_admanager_plus:7.1:7101:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_admanager_plus:7.1:7102:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_admanager_plus:7.1:7110:*:*:*:*:*:*

More vulnerabilities in Zohocorp Manageengine Admanager Plus

CVE-2022-47966 — Critical (CVSS 9.8): Multiple Zoho ManageEngine on-premise products, such as ServiceDesk Plus through 14003, allow remote code execution due…
CVE-2021-42002 — Critical (CVSS 9.8): Zoho ManageEngine ADManager Plus before 7115 is vulnerable to a filter bypass that leads to file-upload remote code…
CVE-2021-38298 — Critical (CVSS 9.8): Zoho ManageEngine ADManager Plus before 7110 is vulnerable to blind XXE.
CVE-2021-37931 — Critical (CVSS 9.8): Zoho ManageEngine ADManager Plus version 7110 and prior allows unrestricted file upload which leads to remote code…
CVE-2021-37930 — Critical (CVSS 9.8): Zoho ManageEngine ADManager Plus version 7110 and prior allows unrestricted file upload which leads to remote code…
CVE-2021-37929 — Critical (CVSS 9.8): Zoho ManageEngine ADManager Plus version 7110 and prior allows unrestricted file upload which leads to remote code…

All CVEs affecting Zohocorp Manageengine Admanager Plus →

Other CWE-347 (Improper Verification of Cryptographic Signature) vulnerabilities

CVE-2026-5430 — Critical (CVSS 10.0): The JWT authentication mechanism accepts tokens signed with algorithms other than those explicitly configured or…
CVE-2026-56451 — Critical (CVSS 10.0): A vulnerability has been identified in Opcenter X (All versions < V2604). Affected applications do not properly…
CVE-2026-48558 — Critical (CVSS 10.0): SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the…
CVE-2023-25574 — Critical (CVSS 10.0): `jupyterhub-ltiauthenticator` is a JupyterHub authenticator for learning tools interoperability (LTI).…
CVE-2024-45409 — Critical (CVSS 10.0): The Ruby SAML library is for implementing the client side of a SAML authorization. Ruby-SAML in <= 12.2 and 1.13.0 <=…
CVE-2024-32962 — Critical (CVSS 10.0): xml-crypto is an xml digital signature and encryption library for Node.js. In affected versions the default…

Browse all CWE-347 (Improper Verification of Cryptographic Signature) vulnerabilities →