CVE-2010-4021

lowpriority · track · 9EPSS 0.021 · 82 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.09% (82nd) EPSS

CVSS 2.1 · low

Is it mine?

5 products

Check your exposure

Who says so?

3 sources

enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 does not properly restrict the use of TGT credentials for armoring TGS requests, which might allow remote authenticated users to impersonate a client by rewriting an inner request, aka a "KrbFastReq forgery issue."

cvss

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

2.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.02.1lowAV:N/AC:H/Au:S/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 2.9

v2.01.8lowAV:N/AC:H/Au:S/C:N/I:P/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-16USprimaryCWE-264USprimary

affected products (5)

Products and version ranges known to be affected.

IBM Security Verify Access 10.0.0all versionscert_bundDEcpe:/a:ibm:security_verify_access:10.0.0
IBM Security Verify Access 10.0.0.0 - 10.0.6.1all versionscert_bundDEcpe:/a:ibm:security_verify_access:10.0.0.0_-_10.0.6.1
IBM Security Verify Access Docker 10.0.0all versionscert_bundDEcpe:/a:ibm:security_verify_access:docker_container__10.0.2.0
n/a n/a≤ n/aenisa_euvdEU
mit kerberos 5= 1.7nvdUScpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-0602IBM Security Verify Access: Mehrere SchwachstellenDeutsch2022-07-06csaf · cert_bundDE
Ein entfernter anonymer, authentisierter oder lokaler Angreifer oder ein Angreifer aus dem angrenzenden Netzwerk kann mehrere Schwachstellen in IBM Security Verify Access ausnutzen, um einen Cross-Site-Scripting-Angriff durchzuführen, vertrauliche Informationen offenzulegen, seine Privilegien zu erweitern, Informationen zu manipulieren, einen Denial-of-Service-Zustand zu verursachen und Sicherheitsmaßnahmen zu umgehen.

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2010-12-02modified 2026-06-16

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references (34)

External citations — patches, advisories, analysis.

scry

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