CVE-2016-2922 [Low] | Security Vulnerability in Rational Clearquest

IBM Rational ClearQuest 8.0 through 8.0.1.9 and 9.0 through 9.0.1.3 (CQ OSLC linkages, EmailRelay) fails to check the SSL certificate against the requested hostname. It is subject to a man-in-the-middle attack with an impersonating server observing all the data transmitted to the real server. IBM X-Force ID: 113353.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.11%	0.67%	+0.56%
2	2026-03-13	0.20%	0.11%	-0.09%
3	2025-06-28	—	0.20%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.11%

0.67%

+0.56%

2026-03-13

0.20%

0.11%

-0.09%

2025-06-28

—

0.20%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
3.7	3.0	LOW	`CVSS:3.0/AV:N/AC:H/PR:N/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: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: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.	2.2	1.4	[email protected]
5.9	3.0	MEDIUM	`CVSS:3.0/AV:N/AC:H/PR:N/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: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.	2.2	3.6	[email protected]
4.3	2.0	MEDIUM	`AV:N/AC:M/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:M) Exploitation needs some favorable conditions, but not exceptional ones. 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.	8.6	2.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

3.7

3.0

LOW

CVSS:3.0/AV:N/AC:H/PR:N/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: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: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.

2.2

1.4

[email protected]

5.9

3.0

MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/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: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.

2.2

3.6

[email protected]

4.3

2.0

MEDIUM

AV:N/AC:M/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:M): Exploitation needs some favorable conditions, but not exceptional ones.
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.

8.6

2.9

[email protected]

Affected software / configurations for CVE-2016-2922

Vendor	Product	Version	Raw CPE
ibm	rational_clearquest	>= 8.0.0.0, <= 8.0.0.21	cpe:2.3:a:ibm:rational_clearquest::::::::
ibm	rational_clearquest	>= 8.0.1.0, <= 8.0.1.17	cpe:2.3:a:ibm:rational_clearquest::::::::
ibm	rational_clearquest	>= 9.0.0.0, <= 9.0.0.6	cpe:2.3:a:ibm:rational_clearquest::::::::
ibm	rational_clearquest	>= 9.0.1.0, <= 9.0.1.3	cpe:2.3:a:ibm:rational_clearquest::::::::

References for CVE-2016-2922

URL	Tags
https://exchange.xforce.ibmcloud.com/vulnerabilities/113353	VDB Entry Vendor Advisory
https://www.ibm.com/support/docview.wss?uid=ibm10718377	Vendor Advisory

URL

CVE-2016-2922

Exploit prediction scoring system (EPSS) score for CVE-2016-2922

Common vulnerability scoring system (CVSS) metrics for CVE-2016-2922

Weakness enumeration for CVE-2016-2922

Affected software / configurations for CVE-2016-2922

References for CVE-2016-2922