CVE-2019-8993 | TIBCO Active Matrix Service Grid Administrator Unauthenticated Download of Sensitive File

The administrative web server component of TIBCO Software Inc.'s TIBCO ActiveMatrix BPM, TIBCO ActiveMatrix BPM Distribution for TIBCO Silver Fabric, TIBCO ActiveMatrix Policy Director, TIBCO ActiveMatrix Service Bus, TIBCO ActiveMatrix Service Grid, TIBCO ActiveMatrix Service Grid Distribution for TIBCO Silver Fabric, TIBCO Silver Fabric Enabler for ActiveMatrix BPM, and TIBCO Silver Fabric Enabler for ActiveMatrix Service Grid contains a vulnerability that could theoretically allow an unauthenticated user to download a file with credentials information. Affected releases are TIBCO Software Inc.'s TIBCO ActiveMatrix BPM: versions up to and including 4.2.0, TIBCO ActiveMatrix BPM Distribution for TIBCO Silver Fabric: versions up to and including 4.2.0, TIBCO ActiveMatrix Policy Director: versions up to and including 1.1.0, TIBCO ActiveMatrix Service Bus: versions up to and including 3.3.0, TIBCO ActiveMatrix Service Grid: versions up to and including 3.3.1, TIBCO ActiveMatrix Service Grid Distribution for TIBCO Silver Fabric: versions up to and including 3.3.0, TIBCO Silver Fabric Enabler for ActiveMatrix BPM: versions up to and including 1.4.1, and TIBCO Silver Fabric Enabler for ActiveMatrix Service Grid: versions up to and including 1.3.1.

Published: 2019-04-24 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-8993 is rated High Risk (70/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.53%). EPSS rose +1.80% 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-2019-8993

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 0.73% 2.53% +1.80%
2 2026-03-25 0.77% 0.73% -0.04%
3 2025-12-03 — 0.77% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-8993

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]
8.6 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/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: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:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
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.
 3.9 4.0 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/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:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2019-8993

Affected software / configurations for CVE-2019-8993

Vendor Product Version Raw CPE
tibco activematrix_bpm <= 4.2.0 cpe:2.3:a:tibco:activematrix_bpm:*:*:*:*:*:*:*:*
tibco activematrix_bpm <= 4.2.0 cpe:2.3:a:tibco:activematrix_bpm:*:*:*:*:*:silver_fabric:*:*
tibco activematrix_policy_director <= 1.1.0 cpe:2.3:a:tibco:activematrix_policy_director:*:*:*:*:*:*:*:*
tibco activematrix_service_bus <= 3.3.0 cpe:2.3:a:tibco:activematrix_service_bus:*:*:*:*:*:*:*:*
tibco activematrix_service_grid <= 3.3.0 cpe:2.3:a:tibco:activematrix_service_grid:*:*:*:*:*:silver_fabric:*:*
tibco activematrix_service_grid <= 3.3.1 cpe:2.3:a:tibco:activematrix_service_grid:*:*:*:*:*:*:*:*
tibco silver_fabric_enabler <= 1.3.1 cpe:2.3:a:tibco:silver_fabric_enabler:*:*:*:*:*:activematrix_service_grid:*:*
tibco silver_fabric_enabler <= 1.4.1 cpe:2.3:a:tibco:silver_fabric_enabler:*:*:*:*:*:activematrix_bpm:*:*

References for CVE-2019-8993

cvelogic Threat Intelligence