CVE-2017-12973 [Low] | Security Vulnerability in Nimbus Jose\+jwt

CVE-2017-12973 is rated Low Risk (28.6/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.64%). 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	0.33%	0.64%	+0.30%
2	2026-06-07	0.23%	0.33%	+0.10%
3	2026-04-21	—	0.23%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.33%

0.64%

+0.30%

2026-06-07

0.23%

0.33%

+0.10%

2026-04-21

—

0.23%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
3.1	3.0	LOW	`CVSS:3.0/AV:N/AC:H/PR:N/UI:R/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: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: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.	1.6	1.4	[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

3.1

3.0

LOW

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

1.6

1.4

[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-2017-12973

Vendor	Product	Version	Raw CPE
connect2id	nimbus_jose\+jwt	1.0	cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.0:::::::*
connect2id	nimbus_jose\+jwt	1.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.1:::::::*
connect2id	nimbus_jose\+jwt	1.2	cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.2:::::::*
connect2id	nimbus_jose\+jwt	1.3	cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.3:::::::*
connect2id	nimbus_jose\+jwt	1.4	cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.4:::::::*
connect2id	nimbus_jose\+jwt	1.5	cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.5:::::::*
connect2id	nimbus_jose\+jwt	1.6	cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.6:::::::*
connect2id	nimbus_jose\+jwt	1.7	cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.7:::::::*
connect2id	nimbus_jose\+jwt	1.8	cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.8:::::::*
connect2id	nimbus_jose\+jwt	1.9	cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.9:::::::*
connect2id	nimbus_jose\+jwt	1.9.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.9.1:::::::*
connect2id	nimbus_jose\+jwt	1.10	cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.10:::::::*
connect2id	nimbus_jose\+jwt	1.11	cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.11:::::::*
connect2id	nimbus_jose\+jwt	1.12	cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.12:::::::*
connect2id	nimbus_jose\+jwt	2.0	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.0:::::::*
connect2id	nimbus_jose\+jwt	2.0.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.0.1:::::::*
connect2id	nimbus_jose\+jwt	2.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.1:::::::*
connect2id	nimbus_jose\+jwt	2.1.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.1.1:::::::*
connect2id	nimbus_jose\+jwt	2.2	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.2:::::::*
connect2id	nimbus_jose\+jwt	2.3	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.3:::::::*
connect2id	nimbus_jose\+jwt	2.4	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.4:::::::*
connect2id	nimbus_jose\+jwt	2.5	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.5:::::::*
connect2id	nimbus_jose\+jwt	2.6	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.6:::::::*
connect2id	nimbus_jose\+jwt	2.7	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.7:::::::*
connect2id	nimbus_jose\+jwt	2.8	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.8:::::::*
connect2id	nimbus_jose\+jwt	2.9	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.9:::::::*
connect2id	nimbus_jose\+jwt	2.10	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.10:::::::*
connect2id	nimbus_jose\+jwt	2.10.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.10.1:::::::*
connect2id	nimbus_jose\+jwt	2.11.0	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.11.0:::::::*
connect2id	nimbus_jose\+jwt	2.12.0	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.12.0:::::::*
connect2id	nimbus_jose\+jwt	2.13.0	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.13.0:::::::*
connect2id	nimbus_jose\+jwt	2.13.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.13.1:::::::*
connect2id	nimbus_jose\+jwt	2.14	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.14:::::::*
connect2id	nimbus_jose\+jwt	2.15	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.15:::::::*
connect2id	nimbus_jose\+jwt	2.15.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.15.1:::::::*
connect2id	nimbus_jose\+jwt	2.15.2	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.15.2:::::::*
connect2id	nimbus_jose\+jwt	2.16	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.16:::::::*
connect2id	nimbus_jose\+jwt	2.17	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.17:::::::*
connect2id	nimbus_jose\+jwt	2.17.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.17.1:::::::*
connect2id	nimbus_jose\+jwt	2.17.2	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.17.2:::::::*
connect2id	nimbus_jose\+jwt	2.18	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.18:::::::*
connect2id	nimbus_jose\+jwt	2.18.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.18.1:::::::*
connect2id	nimbus_jose\+jwt	2.18.2	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.18.2:::::::*
connect2id	nimbus_jose\+jwt	2.19	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.19:::::::*
connect2id	nimbus_jose\+jwt	2.19.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.19.1:::::::*
connect2id	nimbus_jose\+jwt	2.20	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.20:::::::*
connect2id	nimbus_jose\+jwt	2.21	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.21:::::::*
connect2id	nimbus_jose\+jwt	2.22	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.22:::::::*
connect2id	nimbus_jose\+jwt	2.22.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.22.1:::::::*
connect2id	nimbus_jose\+jwt	2.23	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.23:::::::*
connect2id	nimbus_jose\+jwt	2.24	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.24:::::::*
connect2id	nimbus_jose\+jwt	2.25	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.25:::::::*
connect2id	nimbus_jose\+jwt	2.26	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.26:::::::*
connect2id	nimbus_jose\+jwt	2.26.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:2.26.1:::::::*
connect2id	nimbus_jose\+jwt	3.0	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.0:::::::*
connect2id	nimbus_jose\+jwt	3.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.1:::::::*
connect2id	nimbus_jose\+jwt	3.1.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.1.1:::::::*
connect2id	nimbus_jose\+jwt	3.1.2	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.1.2:::::::*
connect2id	nimbus_jose\+jwt	3.2	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.2:::::::*
connect2id	nimbus_jose\+jwt	3.2.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.2.1:::::::*
connect2id	nimbus_jose\+jwt	3.2.2	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.2.2:::::::*
connect2id	nimbus_jose\+jwt	3.3	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.3:::::::*
connect2id	nimbus_jose\+jwt	3.4	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.4:::::::*
connect2id	nimbus_jose\+jwt	3.5	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.5:::::::*
connect2id	nimbus_jose\+jwt	3.6	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.6:::::::*
connect2id	nimbus_jose\+jwt	3.7	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.7:::::::*
connect2id	nimbus_jose\+jwt	3.8	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.8:::::::*
connect2id	nimbus_jose\+jwt	3.8.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.8.1:::::::*
connect2id	nimbus_jose\+jwt	3.8.2	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.8.2:::::::*
connect2id	nimbus_jose\+jwt	3.9	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.9:::::::*
connect2id	nimbus_jose\+jwt	3.9.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.9.1:::::::*
connect2id	nimbus_jose\+jwt	3.9.2	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.9.2:::::::*
connect2id	nimbus_jose\+jwt	3.10	cpe:2.3:a:connect2id:nimbus_jose\+jwt:3.10:::::::*
connect2id	nimbus_jose\+jwt	4.0	cpe:2.3:a:connect2id:nimbus_jose\+jwt:4.0:::::::*
connect2id	nimbus_jose\+jwt	4.0.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:4.0.1:::::::*
connect2id	nimbus_jose\+jwt	4.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:4.1:::::::*
connect2id	nimbus_jose\+jwt	4.1.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:4.1.1:::::::*
connect2id	nimbus_jose\+jwt	4.2	cpe:2.3:a:connect2id:nimbus_jose\+jwt:4.2:::::::*
connect2id	nimbus_jose\+jwt	4.3	cpe:2.3:a:connect2id:nimbus_jose\+jwt:4.3:::::::*
connect2id	nimbus_jose\+jwt	4.3.1	cpe:2.3:a:connect2id:nimbus_jose\+jwt:4.3.1:::::::*

References for CVE-2017-12973

URL	Tags
https://bitbucket.org/connect2id/nimbus-jose-jwt/commits/6a29f10f723f406eb25555f55842c59a43a38912	Patch Third Party Advisory
https://bitbucket.org/connect2id/nimbus-jose-jwt/issues/223/aescbc-return-immediately-on-invalid-hmac	Third Party Advisory
https://bitbucket.org/connect2id/nimbus-jose-jwt/src/master/CHANGELOG.txt	Release Notes Third Party Advisory

URL

CVE-2017-12973

Exploit prediction scoring system (EPSS) score for CVE-2017-12973

Common vulnerability scoring system (CVSS) metrics for CVE-2017-12973

Weakness enumeration for CVE-2017-12973

GitHub Security Advisory for CVE-2017-12973

Affected software / configurations for CVE-2017-12973

References for CVE-2017-12973