CVE-2021-3586

criticalpriority · track · 39OT risk · elevatedEPSS 0.010 · 64 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.03% (64th) EPSS

CVSS 9.8 · critical

Is it mine?

7 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · redhat_csaf

EPSS · scored 2026-10-27

A flaw was found in servicemesh-operator. The NetworkPolicy resources installed for Maistra do not properly specify which ports may be accessed, allowing access to all ports on these resources from any pod. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedservicemesh-operator-0:2.0.5-3.el8.ppc64le as a component of OpenShift Service Mesh 2.0redhat_csaf
The OpenShift Service Mesh Release Notes provide information on the features and known issues: https://docs.openshift.com/container-platform/latest/service_mesh/v2x/servicemesh-release-notes.html
https://access.redhat.com/errata/RHSA-2021:2380
Fixedservicemesh-operator-0:2.0.5-3.el8.s390x as a component of OpenShift Service Mesh 2.0redhat_csaf
The OpenShift Service Mesh Release Notes provide information on the features and known issues: https://docs.openshift.com/container-platform/latest/service_mesh/v2x/servicemesh-release-notes.html
https://access.redhat.com/errata/RHSA-2021:2380
Fixedservicemesh-operator-0:2.0.5-3.el8.src as a component of OpenShift Service Mesh 2.0redhat_csaf
The OpenShift Service Mesh Release Notes provide information on the features and known issues: https://docs.openshift.com/container-platform/latest/service_mesh/v2x/servicemesh-release-notes.html
https://access.redhat.com/errata/RHSA-2021:2380
Fixedservicemesh-operator-0:2.0.5-3.el8.x86_64 as a component of OpenShift Service Mesh 2.0redhat_csaf
The OpenShift Service Mesh Release Notes provide information on the features and known issues: https://docs.openshift.com/container-platform/latest/service_mesh/v2x/servicemesh-release-notes.html
https://access.redhat.com/errata/RHSA-2021:2380
Workaroundservicemesh-operator-0:2.0.5-3.el8.ppc64le as a component of OpenShift Service Mesh 2.0redhat_csaf
Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.
Workaroundservicemesh-operator-0:2.0.5-3.el8.s390x as a component of OpenShift Service Mesh 2.0redhat_csaf
Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.
Workaroundservicemesh-operator-0:2.0.5-3.el8.src as a component of OpenShift Service Mesh 2.0redhat_csaf
Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.
Workaroundservicemesh-operator-0:2.0.5-3.el8.x86_64 as a component of OpenShift Service Mesh 2.0redhat_csaf
Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.

cvss

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

9.8

010

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

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · Red Hat Product Security US

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1188USprimaryCWE-305US

affected products (7)

Products and version ranges known to be affected.

n/a servicemesh-operator≤ Affects v2.0.5.1, Fixed in v2.0.5.2.enisa_euvdEU
redhat openshift service mesh= 2.0nvdUScpe:2.3:a:redhat:openshift_service_mesh:*:*:*:*:*:*:*:*
redhat servicemesh-operator= 2.0.5.1nvdUScpe:2.3:a:redhat:servicemesh-operator:*:*:*:*:*:*:*:*
servicemesh-operator-0:2.0.5-3.el8.ppc64le as a component of OpenShift Service Mesh 2.0all versionsfixedredhat_csafUS
servicemesh-operator-0:2.0.5-3.el8.s390x as a component of OpenShift Service Mesh 2.0all versionsfixedredhat_csafUS
servicemesh-operator-0:2.0.5-3.el8.src as a component of OpenShift Service Mesh 2.0all versionsfixedredhat_csafUS
servicemesh-operator-0:2.0.5-3.el8.x86_64 as a component of OpenShift Service Mesh 2.0all versionsfixedredhat_csafUS

advisories (1)

Vendor and ecosystem advisories describing this.

RHSA-2021:2380Red Hat Security Advisory: servicemesh-operator security update2021-06-10csaf · redhat_csafUS
An update for servicemesh-operator is now available for OpenShift Service Mesh 2.0. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd redhat_csaf NVD CVE.org MITRE

published 2022-08-22modified 2026-06-17

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references (11)

External citations — patches, advisories, analysis.

scry

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