CVE-2020-1757

mediumpriority · track · 33EPSS 0.016 · 76 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.62% (76th) EPSS

CVSS 5.5 · medium

Is it mine?

21 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-23

A flaw was found in all undertow-2.x.x SP1 versions prior to undertow-2.0.30.SP1, all undertow-1.x.x and undertow-2.x.x versions prior to undertow-2.1.0.Final, where the Servlet container causes servletPath to normalize incorrectly by truncating the path after semicolon which may lead to an application mapping resulting in the security bypass.

cvss

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

8.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.5–8.1

v2.05.5mediumAV:N/AC:L/Au:S/C:P/I:P/A:Nprimary · NVD / NIST USexploitability 8 · impact 4.9

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 5.2

v3.08.1highCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondary · ENISA EU

v3.08.1highCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondary · secalert@redhat.com USexploitability 2.8 · impact 5.2

v3.08.1highCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondary · OSV

v3.17.4highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20USCWE-200USCWE-200US

affected products (21)

Products and version ranges known to be affected.

IBM InfoSphere Information Serverall versionscert_bundDEcpe:/a:ibm:infosphere_information_server:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat JBoss Enterprise Application Platform 7.2all versionscert_bundDEcpe:/a:redhat:jboss_enterprise_application_platform:7.2
Red Hat JBoss Enterprise Application Platform 7.2_EL6all versionscert_bundDEcpe:/a:redhat:jboss_enterprise_application_platform:7.2_el6
Red Hat JBoss Enterprise Application Platform 7.2_EL7all versionscert_bundDEcpe:/a:redhat:jboss_enterprise_application_platform:7.2_el7
Red Hat JBoss Enterprise Application Platform 7.2_EL8all versionscert_bundDEcpe:/a:redhat:jboss_enterprise_application_platform:7.2_el8
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Red Hat undertow≤ all undertow-2.x.x SP1 versions prior to undertow-2.0.30.SP1enisa_euvdEU
Red Hat undertow≤ all undertow-1.x.x and undertow-2.x.x versions prior to undertow-2.1.0.Finalenisa_euvdEU
redhat jboss data grid= 7.0.0nvdUScpe:2.3:a:redhat:jboss_data_grid:*:*:*:*:*:*:*:*
redhat jboss enterprise application platform= 7.0.0nvdUScpe:2.3:a:redhat:jboss_enterprise_application_platform:*:*:*:*:*:*:*:*
redhat jboss fuse= 6.0.0nvdUScpe:2.3:a:redhat:jboss_fuse:*:*:*:*:*:*:*:*
redhat jboss fuse= 7.0.0nvdUScpe:2.3:a:redhat:jboss_fuse:*:*:*:*:*:*:*:*
redhat openshift application runtimesall versionsnvdUScpe:2.3:a:redhat:openshift_application_runtimes:*:*:*:*:*:*:*:*
redhat single sign-on= 7.0nvdUScpe:2.3:a:redhat:single_sign-on:*:*:*:*:*:*:*:*
redhat undertow< 2.1.0nvdUScpe:2.3:a:redhat:undertow:*:*:*:*:*:*:*:*
redhat undertow= 2.0.0nvdUScpe:2.3:a:redhat:undertow:*:*:*:*:*:*:*:*
redhat undertow= 2.0.25nvdUScpe:2.3:a:redhat:undertow:*:*:*:*:*:*:*:*
redhat undertow= 2.0.26nvdUScpe:2.3:a:redhat:undertow:*:*:*:*:*:*:*:*
redhat undertow= 2.0.28nvdUScpe:2.3:a:redhat:undertow:*:*:*:*:*:*:*:*

showing 20 of 21

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-1926Red Hat JBoss Enterprise Application Platform: Mehrere SchwachstellenDeutsch2024-08-26csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Red Hat JBoss Enterprise Application Platform auf Red Hat Enterprise Linux ausnutzen, um beliebigen Programmcode auszuführen, einen Denial-of-Service-Zustand zu erzeugen, vertrauliche Informationen preiszugeben, Dateien und Daten zu manipulieren oder Sicherheitsmaßnahmen zu umgehen.
WID-SEC-W-2025-2123Red Hat JBoss Enterprise Application Platform: Mehrere SchwachstellenDeutsch2020-05-11csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat JBoss Enterprise Application Platform ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsvorkehrungen zu umgehen, einen Cross-Site-Angriff durchzuführen, einen Denial of Service Zustand herbeizuführen, Informationen offenzulegen oder Dateien zu manipulieren.
GHSA-2w73-fqqj-c92pImproper Input Validation in Undertow2022-05-24ghsa · osvUS
A flaw was found in all undertow-2.x.x SP1 versions prior to undertow-2.0.30.SP1, all undertow-1.x.x and undertow-2.x.x versions prior to undertow-2.1.0.Final, where the Servlet container causes servletPath to normalize incorrectly by truncating the path after semicolon which may lead to an application mapping resulting in the security bypass.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv NVD CVE.org MITRE

published 2020-04-21modified 2026-06-17

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+25119 more

references (17)

External citations — patches, advisories, analysis.

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