CVE-2021-28958

Zoho ManageEngine ADSelfService Plus through 6101 is vulnerable to unauthenticated Remote Code Execution while changing the password.

Published: 2021-06-25 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2021-28958 is rated High Risk (68.4/100): CVSS Critical severity, with high exploitation likelihood (EPSS 48.94%, 98th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: 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-2021-28958

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 2026-05-16 55.32% 48.94% -6.38%
2 2026-03-25 57.46% 55.32% -2.14%
3 2025-12-09 57.46%

Full EPSS history (24 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-28958

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-2021-28958

Affected software / configurations for CVE-2021-28958

Vendor Product Version Raw CPE
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4510:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4511:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4520:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4522:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4531:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4540:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4543:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4544:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4550:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4560:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4570:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4571:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4572:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4580:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4590:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4591:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 4.5 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:4.5:4592:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.0 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5000:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.0 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5001:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.0 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5002:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.0 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5010:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.0 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5011:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.0 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5020:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.0 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5021:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.0 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5022:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.0 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5030:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.0 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5032:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.0 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5040:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.0 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0:5041:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.0.6 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.0.6:*:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5100:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5101:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5102:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5103:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5104:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5105:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5106:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5107:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5108:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5109:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5110:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5111:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5112:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5113:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5114:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5115:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.1 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.1:5116:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.2 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5200:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.2 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5201:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.2 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5202:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.2 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5203:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.2 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5204:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.2 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5205:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.2 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5206:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.2 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.2:5207:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5300:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5301:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5302:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5303:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5304:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5305:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5306:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5307:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5308:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5309:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5310:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5311:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5312:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5313:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5314:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5315:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5316:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5317:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5318:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5319:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5320:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5321:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5322:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5323:*:*:*:*:*:*
zohocorp manageengine_adselfservice_plus 5.3 cpe:2.3:a:zohocorp:manageengine_adselfservice_plus:5.3:5324:*:*:*:*:*:*

References for CVE-2021-28958

cvelogic Threat Intelligence