CVE-2017-12972

mediumpriority · track · 30OT risk · elevatedEPSS 0.009 · 59 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.89% (59th) EPSS

CVSS 5 · medium

Is it mine?

140 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

In Nimbus JOSE+JWT before 4.39, there is no integer-overflow check when converting length values from bytes to bits, which allows attackers to conduct HMAC bypass attacks by shifting Additional Authenticated Data (AAD) and ciphertext so that different plaintext is obtained for the same HMAC.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · OSV

v3.06.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · FSTEC (BDU) RU

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-345USprimaryCWE-345USCWE-345US

affected products (140)

Products and version ranges known to be affected.

EMC Avamarall versionscert_bundDEcpe:/a:emc:avamar:-
Hitachi Ops Centerall versionscert_bundDEcpe:/a:hitachi:ops_center:-
Hitachi Ops Center <Analyzer 10.9.3-00all versionscert_bundDE
Hitachi Ops Center <Viewpoint 10.9.3-00all versionscert_bundDE
IBM DB2 11.1all versionscert_bundDEcpe:/a:ibm:db2:11.1
IBM DB2 11.5all versionscert_bundDEcpe:/a:ibm:db2:11.5
IBM SPSS Analytic Serverall versionscert_bundDEcpe:/a:ibm:spss:analytic_server
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Hitachi Ops Center< Analyzer 10.9.3-00cert_bundDE
Hitachi Ops Center< Viewpoint 10.9.3-00cert_bundDE
n/a n/a≤ n/aenisa_euvdEU
Connect2id Ltd. Nimbus JOSE + JWT≤ 4.39fstec_bduRU
connect2id nimbus jose+jwt= 1.0nvdUScpe:2.3:a:connect2id:nimbus_jose\+jwt:*:*:*:*:*:*:*:*
connect2id nimbus jose+jwt= 1.1nvdUScpe:2.3:a:connect2id:nimbus_jose\+jwt:*:*:*:*:*:*:*:*
connect2id nimbus jose+jwt= 1.10nvdUScpe:2.3:a:connect2id:nimbus_jose\+jwt:*:*:*:*:*:*:*:*
connect2id nimbus jose+jwt= 1.11nvdUScpe:2.3:a:connect2id:nimbus_jose\+jwt:*:*:*:*:*:*:*:*
connect2id nimbus jose+jwt= 1.12nvdUScpe:2.3:a:connect2id:nimbus_jose\+jwt:*:*:*:*:*:*:*:*
connect2id nimbus jose+jwt= 1.2nvdUScpe:2.3:a:connect2id:nimbus_jose\+jwt:*:*:*:*:*:*:*:*
connect2id nimbus jose+jwt= 1.3nvdUScpe:2.3:a:connect2id:nimbus_jose\+jwt:*:*:*:*:*:*:*:*
connect2id nimbus jose+jwt= 1.4nvdUScpe:2.3:a:connect2id:nimbus_jose\+jwt:*:*:*:*:*:*:*:*

showing 20 of 140

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-0770IBM DB2: Mehrere SchwachstellenDeutsch2020-04-23csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in IBM DB2 ausnutzen, um seine Privilegien zu erhöhen oder einen Denial of Service zu verursachen
GHSA-2qp9-wg27-9pcvNimbus JOSE+JWT missing overflow check2022-05-13ghsa · osvUS
In Nimbus JOSE+JWT before 4.39, there is no integer-overflow check when converting length values from bytes to bits, which allows attackers to conduct HMAC bypass attacks by shifting Additional Authenticated Data (AAD) and ciphertext so that different plaintext is obtained for the same HMAC.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd osv NVD CVE.org MITRE

published 2017-08-20modified 2026-06-17

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+1444 more

references (21)

External citations — patches, advisories, analysis.

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