CVE-2021-44675

Zoho ManageEngine ServiceDesk Plus MSP before 10.5 Build 10534 is vulnerable to unauthenticated remote code execution due to a filter bypass in which authentication is not required.

Published: 2021-12-20 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-44675 is rated High Risk (75.6/100): CVSS Critical severity, with high exploitation likelihood (EPSS 6.48%, 93th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +3.94% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-44675

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 2.54% 6.48% +3.94%
2 2026-03-06 1.88% 2.54% +0.65%
3 2025-12-08 — 1.88% —

Full EPSS history (20 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-44675

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2021-44675

Affected software / configurations for CVE-2021-44675

Vendor Product Version Raw CPE
zohocorp manageengine_servicedesk_plus_msp <= 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:*:*:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10500:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10501:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10502:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10503:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10504:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10505:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10506:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10507:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10508:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10509:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10510:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10511:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10512:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10513:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10514:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10515:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10516:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10517:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10518:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10519:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10520:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10521:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10522:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10523:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10524:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10525:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10526:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10527:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10528:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10529:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10530:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10531:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10532:*:*:*:*:*:*
zohocorp manageengine_servicedesk_plus_msp 10.5 cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10533:*:*:*:*:*:*

References for CVE-2021-44675

cvelogic Threat Intelligence