CVE-2021-20371

IBM Jazz Foundation and IBM Engineering products could allow a remote attacker to obtain sensitive information when an error message is returned in the browser. This information could be used in further attacks against the system. IBM X-Force ID: 195516.

Published: 2021-06-02 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-20371 is rated Moderate Risk (49.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.20%). Review affected assets and schedule 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-2021-20371

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 0.26% 1.20% +0.94%
2 2026-01-22 0.14% 0.26% +0.12%
3 2025-11-21 — 0.14% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-20371

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N 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:L)
A normal user session is enough; they don’t have to be admin.
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:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 3.6 [email protected]
4.3 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N 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:L)
A normal user session is enough; they don’t have to be admin.
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:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 1.4 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:N/A:N 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:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2021-20371

Affected software / configurations for CVE-2021-20371

Vendor Product Version Raw CPE
ibm collaborative_lifecycle_management 6.0.6 cpe:2.3:a:ibm:collaborative_lifecycle_management:6.0.6:*:*:*:*:*:*:*
ibm collaborative_lifecycle_management 6.0.6.1 cpe:2.3:a:ibm:collaborative_lifecycle_management:6.0.6.1:*:*:*:*:*:*:*
ibm engineering_lifecycle_management 7.0 cpe:2.3:a:ibm:engineering_lifecycle_management:7.0:*:*:*:*:*:*:*
ibm engineering_lifecycle_management 7.0.1 cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.1:*:*:*:*:*:*:*
ibm engineering_lifecycle_management 7.0.2 cpe:2.3:a:ibm:engineering_lifecycle_management:7.0.2:*:*:*:*:*:*:*
ibm engineering_lifecycle_optimization_-_engineering_insights 7.0 cpe:2.3:a:ibm:engineering_lifecycle_optimization_-_engineering_insights:7.0:*:*:*:*:*:*:*
ibm engineering_lifecycle_optimization_-_engineering_insights 7.0.1 cpe:2.3:a:ibm:engineering_lifecycle_optimization_-_engineering_insights:7.0.1:*:*:*:*:*:*:*
ibm engineering_lifecycle_optimization_-_engineering_insights 7.0.2 cpe:2.3:a:ibm:engineering_lifecycle_optimization_-_engineering_insights:7.0.2:*:*:*:*:*:*:*
ibm engineering_lifecycle_optimization_-_publishing 7.0 cpe:2.3:a:ibm:engineering_lifecycle_optimization_-_publishing:7.0:*:*:*:*:*:*:*
ibm engineering_lifecycle_optimization_-_publishing 7.0.1 cpe:2.3:a:ibm:engineering_lifecycle_optimization_-_publishing:7.0.1:*:*:*:*:*:*:*
ibm engineering_lifecycle_optimization_-_publishing 7.0.2 cpe:2.3:a:ibm:engineering_lifecycle_optimization_-_publishing:7.0.2:*:*:*:*:*:*:*
ibm engineering_test_management 7.0.0 cpe:2.3:a:ibm:engineering_test_management:7.0.0:*:*:*:*:*:*:*
ibm engineering_test_management 7.0.1 cpe:2.3:a:ibm:engineering_test_management:7.0.1:*:*:*:*:*:*:*
ibm rational_doors_next_generation 6.0.6 cpe:2.3:a:ibm:rational_doors_next_generation:6.0.6:*:*:*:*:*:*:*
ibm rational_doors_next_generation 6.0.6.1 cpe:2.3:a:ibm:rational_doors_next_generation:6.0.6.1:*:*:*:*:*:*:*
ibm rational_doors_next_generation 7.0 cpe:2.3:a:ibm:rational_doors_next_generation:7.0:*:*:*:*:*:*:*
ibm rational_doors_next_generation 7.0.1 cpe:2.3:a:ibm:rational_doors_next_generation:7.0.1:*:*:*:*:*:*:*
ibm rational_doors_next_generation 7.0.2 cpe:2.3:a:ibm:rational_doors_next_generation:7.0.2:*:*:*:*:*:*:*
ibm rational_engineering_lifecycle_manager 6.0.6 cpe:2.3:a:ibm:rational_engineering_lifecycle_manager:6.0.6:*:*:*:*:*:*:*
ibm rational_engineering_lifecycle_manager 6.0.6.1 cpe:2.3:a:ibm:rational_engineering_lifecycle_manager:6.0.6.1:*:*:*:*:*:*:*
ibm rational_quality_manager 6.0.6 cpe:2.3:a:ibm:rational_quality_manager:6.0.6:*:*:*:*:*:*:*
ibm rational_quality_manager 6.0.6.1 cpe:2.3:a:ibm:rational_quality_manager:6.0.6.1:*:*:*:*:*:*:*
ibm removable_media_manager 6.0.6 cpe:2.3:a:ibm:removable_media_manager:6.0.6:*:*:*:*:*:*:*
ibm removable_media_manager 6.0.6.1 cpe:2.3:a:ibm:removable_media_manager:6.0.6.1:*:*:*:*:*:*:*
ibm removable_media_manager 7.0 cpe:2.3:a:ibm:removable_media_manager:7.0:*:*:*:*:*:*:*

References for CVE-2021-20371

cvelogic Threat Intelligence