CVE-2019-4719 [Medium] | Information Disclosure in Mq

CVE-2019-4719 is rated Low Risk (30.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.32%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.09%	0.32%	+0.23%
2	2025-11-21	0.04%	0.09%	+0.05%
3	2025-11-18	—	0.04%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.09%

0.32%

+0.23%

2025-11-21

0.04%

0.09%

+0.05%

2025-11-18

—

0.04%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.5	3.1	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. 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.	1.8	3.6	[email protected]
5.1	3.0	MEDIUM	`CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:H) Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work. 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:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	1.4	3.6	[email protected]
2.1	2.0	LOW	`AV:L/AC:L/Au:N/C:P/I:N/A:N` Click to expand Access vector (AV:L) Requires local access to the target system. 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.	3.9	2.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

5.5

3.1

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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.

1.8

3.6

[email protected]

5.1

3.0

MEDIUM

CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H): Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
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:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

1.4

3.6

[email protected]

2.1

2.0

LOW

AV:L/AC:L/Au:N/C:P/I:N/A:N Click to expand

Access vector (AV:L): Requires local access to the target system.
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.

3.9

2.9

[email protected]

Affected software / configurations for CVE-2019-4719

Vendor	Product	Version	Raw CPE
ibm	mq	>= 8.0.0.0, < 8.0.0.14	cpe:2.3:a:ibm:mq::::::::
ibm	mq	>= 9.0.0.0, <= 9.0.0.9	cpe:2.3:a:ibm:mq:::::lts:::*
ibm	mq	>= 9.1.0, < 9.1.4	cpe:2.3:a:ibm:mq:::::continuous_delivery:::*
ibm	mq	>= 9.1.0.0, < 9.1.0.4	cpe:2.3:a:ibm:mq:::::lts:::*
ibm	mq_appliance	>= 8.0.0.0, < 8.0.0.14	cpe:2.3:a:ibm:mq_appliance::::::::
ibm	mq_appliance	>= 9.1.0, < 9.1.4	cpe:2.3:a:ibm:mq_appliance:::::continuous_delivery:::*
ibm	mq_appliance	>= 9.1.0.0, < 9.1.0.4	cpe:2.3:a:ibm:mq_appliance:::::lts:::*
ibm	websphere_mq	>= 7.1.0.0, <= 7.5.0.9	cpe:2.3:a:ibm:websphere_mq::::::::

References for CVE-2019-4719

URL	Tags
https://exchange.xforce.ibmcloud.com/vulnerabilities/172124	VDB Entry Vendor Advisory
https://www.ibm.com/support/pages/node/1136608	Vendor Advisory

URL

CVE-2019-4719

Exploit prediction scoring system (EPSS) score for CVE-2019-4719

Common vulnerability scoring system (CVSS) metrics for CVE-2019-4719

Weakness enumeration for CVE-2019-4719

Affected software / configurations for CVE-2019-4719

References for CVE-2019-4719