CVE-2021-36745

A vulnerability in Trend Micro ServerProtect for Storage 6.0, ServerProtect for EMC Celerra 5.8, ServerProtect for Network Appliance Filers 5.8, and ServerProtect for Microsoft Windows / Novell Netware 5.8 could allow a remote attacker to bypass authentication on affected installations.

Published: 2021-09-29 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-36745 is rated High Risk (76.4/100): CVSS Critical severity, with high exploitation likelihood (EPSS 18.72%, 95th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +4.03% 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-2021-36745

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 2025-04-15 14.69% 18.72% +4.03%
2 2025-03-30 18.73% 14.69% -4.04%
3 2025-03-29 — 18.73% —

Full EPSS history (24 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-36745

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]
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C 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:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2021-36745

Affected software / configurations for CVE-2021-36745

Vendor Product Version Raw CPE
trendmicro serverprotect 5.8 cpe:2.3:a:trendmicro:serverprotect:5.8:*:*:*:*:emc:*:*
trendmicro serverprotect 5.8 cpe:2.3:a:trendmicro:serverprotect:5.8:*:*:*:*:netapp:*:*
trendmicro serverprotect 5.8 cpe:2.3:a:trendmicro:serverprotect:5.8:*:*:*:*:netware:*:*
trendmicro serverprotect 5.8 cpe:2.3:a:trendmicro:serverprotect:5.8:*:*:*:*:windows:*:*
trendmicro serverprotect 6.0 cpe:2.3:a:trendmicro:serverprotect:6.0:*:*:*:*:storage:*:*

References for CVE-2021-36745

cvelogic Threat Intelligence