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CVE-2017-12974

25
FAUCET Score

CVE-2017-12974 describes an Invalid Curve Attack vulnerability in Nimbus JOSE+JWT versions prior to 4.36, affecting the connect2id nimbus_jose+jwt library. The flaw allows attackers to bypass cryptographic protections by providing invalid elliptic curve coordinates during ECKey construction, specifically when the underlying JCE provider lacks proper curve validation. With a CVSS score of 7.5 (HIGH), this vulnerability is remotely exploitable with low attack complexity, potentially leading to high confidentiality impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.0CPE matchmatch criteria
cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.0:*:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.1:*:*:*:*:*:*:*
1.2CPE matchmatch criteria
cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.2:*:*:*:*:*:*:*
1.3CPE matchmatch criteria
cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.3:*:*:*:*:*:*:*
1.4CPE matchmatch criteria
cpe:2.3:a:connect2id:nimbus_jose\+jwt:1.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.26%
Probability of exploitation in next 30 days
EPSS Percentile
66.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0126 is in the 46th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: com.nimbusds:nimbus-jose-jwtFixed in: 4.36

Vendor Advisories (1)

mavenGHSA-pfv2-37f7-9m6whigh

Improper Verification of Cryptographic Signature in Nimbus JOSE+JWT

May 13, 2022

References

bitbucket.org / connect2id/nimbus-jose-jwt/commits/f3a7a801f0c6b078899fed9226368eb7b44e2b2f
Third Party Advisory
bitbucket.org / connect2id/nimbus-jose-jwt/issues/217/explicit-check-for-ec-public-key-on-curve
PatchThird Party Advisory
bitbucket.org / connect2id/nimbus-jose-jwt/src/master/CHANGELOG.txt
Release NotesThird Party Advisory
lists.apache.org / thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe%40%3Ccommits.druid.apache.org%3E