CVE-2019-4606 [High] | Security Vulnerability in Db2 High Performance Unlo…

IBM DB2 High Performance Unload load for LUW 6.1 and 6.5 could allow a local attacker to execute arbitrary code on the system, caused by an untrusted search path vulnerability. By using a executable file, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 168298.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.17%	0.42%	+0.25%
2	2025-11-21	0.08%	0.17%	+0.09%
3	2025-11-18	—	0.08%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.17%

0.42%

+0.25%

2025-11-21

0.08%

0.17%

+0.09%

2025-11-18

—

0.08%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.8	3.1	HIGH	`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H` 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:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. 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.	1.8	5.9	[email protected]
7.4	3.0	HIGH	`CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H` 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: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.	1.4	5.9	[email protected]
6.9	2.0	MEDIUM	`AV:L/AC:M/Au:N/C:C/I:C/A:C` Click to expand Access vector (AV:L) Requires local access to the target system. Access complexity (AC:M) Exploitation needs some favorable conditions, but not exceptional ones. 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.	3.4	10.0	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.8

3.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H 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:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R): A real person has to do something—click, install, enable—otherwise it doesn’t land.
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.

1.8

5.9

[email protected]

7.4

3.0

HIGH

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

1.4

5.9

[email protected]

6.9

2.0

MEDIUM

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

Access vector (AV:L): Requires local access to the target system.
Access complexity (AC:M): Exploitation needs some favorable conditions, but not exceptional ones.
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.

3.4

10.0

[email protected]

Affected software / configurations for CVE-2019-4606

Vendor	Product	Version	Raw CPE
ibm	db2_high_performance_unload_load	5.1.0.0	cpe:2.3:a:ibm:db2_high_performance_unload_load:5.1.0.0:::::::*
ibm	db2_high_performance_unload_load	5.1.0.1	cpe:2.3:a:ibm:db2_high_performance_unload_load:5.1.0.1:::::::*
ibm	db2_high_performance_unload_load	6.1.0.0	cpe:2.3:a:ibm:db2_high_performance_unload_load:6.1.0.0:::::::*
ibm	db2_high_performance_unload_load	6.1.0.1	cpe:2.3:a:ibm:db2_high_performance_unload_load:6.1.0.1:::::::*
ibm	db2_high_performance_unload_load	6.1.0.2	cpe:2.3:a:ibm:db2_high_performance_unload_load:6.1.0.2:::::::*
ibm	db2_high_performance_unload_load	6.1.0.3	cpe:2.3:a:ibm:db2_high_performance_unload_load:6.1.0.3:::::::*
ibm	db2_high_performance_unload_load	6.5.0.0	cpe:2.3:a:ibm:db2_high_performance_unload_load:6.5.0.0:::::::*
ibm	db2_high_performance_unload_load	6.5.0.0	cpe:2.3:a:ibm:db2_high_performance_unload_load:6.5.0.0:if1::::::

References for CVE-2019-4606

URL	Tags
https://exchange.xforce.ibmcloud.com/vulnerabilities/168298	VDB Entry Vendor Advisory
https://www.ibm.com/support/pages/node/1128063	Vendor Advisory

URL

CVE-2019-4606

Exploit prediction scoring system (EPSS) score for CVE-2019-4606

Common vulnerability scoring system (CVSS) metrics for CVE-2019-4606

Weakness enumeration for CVE-2019-4606

Affected software / configurations for CVE-2019-4606

References for CVE-2019-4606