CVE-2019-8992 [High] | File Upload / RCE in Activematrix Bpm

The administrative 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 wherein a user without privileges to upload distributed application archives ("Upload DAA" permission) can theoretically upload arbitrary code, and in some circumstances then execute that code on ActiveMatrix Service Grid nodes. 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.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-03-25	0.79%	0.75%	-0.04%
2	2025-12-23	0.60%	0.79%	+0.20%
3	2025-11-21	—	0.60%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-03-25

0.79%

0.75%

-0.04%

2025-12-23

0.60%

0.79%

+0.20%

2025-11-21

—

0.60%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.8	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:L/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: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: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.	2.8	5.9	[email protected]
9.9	3.0	CRITICAL	`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/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: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: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: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.	3.1	6.0	[email protected]
6.5	2.0	MEDIUM	`AV:N/AC:L/Au:S/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:S) A single authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:P) Partial availability impact.	8.0	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

8.8

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/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: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: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.

2.8

5.9

[email protected]

9.9

3.0

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/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: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: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: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.

3.1

6.0

[email protected]

6.5

2.0

MEDIUM

AV:N/AC:L/Au:S/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:S): A single authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:P): Partial integrity impact.
Availability impact (A:P): Partial availability impact.

8.0

6.4

[email protected]

Affected software / configurations for CVE-2019-8992

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-2019-8992

URL	Tags
http://www.securityfocus.com/bid/108058	Broken Link Third Party Advisory VDB Entry
http://www.tibco.com/services/support/advisories	Vendor Advisory
https://www.tibco.com/support/advisories/2019/04/tibco-security-advisory-april-24-2019-tibco-active-matrix-service-grid-2019-8992	Vendor Advisory

URL

CVE-2019-8992 | TIBCO Active Matrix Service Grid Administrator Remote Code Execution

Exploit prediction scoring system (EPSS) score for CVE-2019-8992

Common vulnerability scoring system (CVSS) metrics for CVE-2019-8992

Weakness enumeration for CVE-2019-8992

Affected software / configurations for CVE-2019-8992

References for CVE-2019-8992