CVE-2021-44525

CVE-2021-44525 is a critical-severity vulnerability in Zohocorp Manageengine Pam360 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-287.

Key facts

• Severity: Critical (CVSS 3.x base score 9.8)
• CVSS v2: 7.5
• EPSS exploit prediction: 3% (88th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-287
• Affected product: Zohocorp Manageengine Pam360
• Published: 2021-12-20
• Last modified: 2026-06-17

Description

Zoho ManageEngine PAM360 before build 5303 allows attackers to modify a few aspects of application state because of a filter bypass in which authentication is not required.

Frequently asked questions

What is CVE-2021-44525?

Zoho ManageEngine PAM360 before build 5303 allows attackers to modify a few aspects of application state because of a filter bypass in which authentication is not required.

How severe is CVE-2021-44525?

CVE-2021-44525 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-2021-44525 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-44525?

CVE-2021-44525 primarily affects Zohocorp Manageengine Pam360. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-44525?

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-2021-44525 published?

CVE-2021-44525 was published on 2021-12-20 and last updated on 2026-06-17.

References

• https://pitstop.manageengine.com/portal/en/community/topic/title-security-advisory-for-cve-2021-44525-authentication-bypass-vulnerability-in-manageengine-pam360

Affected products (23)

• cpe:2.3:a:zohocorp:manageengine_pam360:4.0:*:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:4.0:build4001:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:4.0:build4002:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:4.1:*:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:4.1:build4100:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:4.1:build4101:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:4.5:*:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:4.5:build4500:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:4.5:build4501:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:5.0:*:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:5.0:build5000:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:5.0:build5001:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:5.0:build5002:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:5.0:build5003:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:5.0:build5004:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:5.1:*:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:5.1:build5100:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:5.2:*:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:5.2:build5200:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:5.3:*:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:5.3:build5300:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:5.3:build5301:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:manageengine_pam360:5.3:build5302:*:*:*:*:*:*

More vulnerabilities in Zohocorp Manageengine Pam360

• 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-2022-47523 — Critical (CVSS 9.8): Zoho ManageEngine Access Manager Plus before 4309, Password Manager Pro before 12210, and PAM360 before 5801 are…
• CVE-2022-43672 — Critical (CVSS 9.8): Zoho ManageEngine Password Manager Pro before 12122, PAM360 before 5711, and Access Manager Plus before 4306 allow SQL…
• CVE-2022-43671 — Critical (CVSS 9.8): Zoho ManageEngine Password Manager Pro before 12122, PAM360 before 5711, and Access Manager Plus before 4306 allow SQL…
• CVE-2022-40300 — Critical (CVSS 9.8): Zoho ManageEngine Password Manager Pro through 12120 before 12121, PAM360 through 5550 before 5600, and Access Manager…
• CVE-2022-35405 — Critical (CVSS 9.8): Zoho ManageEngine Password Manager Pro before 12101 and PAM360 before 5510 are vulnerable to unauthenticated remote…

All CVEs affecting Zohocorp Manageengine Pam360 →

Other CWE-287 (Improper Authentication) vulnerabilities

• CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
• CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
• CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
• CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
• CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
• CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →