CVE-2020-26555

mediumpriority · track · 22OT risk · elevatedEPSS 0.009 · 59 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.88% (59th) EPSS

CVSS 4.8 · medium

Is it mine?

59 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-27

Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B through 5.2 may permit an unauthenticated nearby device to spoof the BD_ADDR of the peer device to complete pairing without knowledge of the PIN.

remediations

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

A vendor fix is available.

FixedSIMATIC RF160B (6GT2003-0FA00)siemens_psirt
Update to V2.2 or later version
FixedFirmware allversions installed on RSM-EX01B product Familypepperl_fuchs_psirt
The device will play a confirmation sound when a Bluetooth connection is successfully established and a status LED labeled BT indicates that a Bluetooth connection is active. This can be used to detect an unauthenticated connection.
MitigationSIMATIC RF160B (6GT2003-0FA00)cisa_csaf_ot
Siemens has released a new version (V2.2) for SIMATIC RF160B and recommends to update to the latest version.

cvss

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

5.4

010

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

v2.04.8mediumAV:A/AC:L/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USexploitability 6.5 · impact 4.9

v3.15.4mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.5

v3.15.4mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · CISA US

v3.15.4mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.15.4mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · Pepperl+Fuchs PSIRT DE

v3.15mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863USprimaryCWE-863USCWE-863USCWE-863US

affected products (59)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Atlassian Bitbucket <10.0.2all versionscert_bundDE
Atlassian Bitbucket <8.19.25 (LTS)all versionscert_bundDE
Atlassian Bitbucket <9.4.13 (LTS)all versionscert_bundDE
Dell ECS 3.8.1.0-3.8.1.7all versionscert_bundDEcpe:/h:dell:ecs:3.8.1.0_-_3.8.1.7
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat Enterprise Linux 9all versionscert_bundDEcpe:/o:redhat:enterprise_linux:9
Red Hat Enterprise Linux Advanced Cluster Security for Kubernetes 4all versionscert_bundDEcpe:/o:redhat:enterprise_linux:advanced_cluster_security_for_kubernetes_4
Red Hat OpenShiftall versionscert_bundDEcpe:/a:redhat:openshift:-
Red Hat OpenShift CodeReady Workspacesall versionscert_bundDEcpe:/a:redhat:openshift:codeready_workspaces
Red Hat OpenShift Container Platform <4.12.72all versionscert_bundDE
Red Hat OpenShift Container Platform <4.14.38all versionscert_bundDE
Red Hat OpenShift Container Platform <4.16.8all versionscert_bundDE
Red Hat OpenShift Custom Metric Autoscaler 2all versionscert_bundDEcpe:/a:redhat:openshift:custom_metric_autoscaler_2
Red Hat OpenShift Data Foundation <4.14.13all versionscert_bundDE
Red Hat OpenShift GitOps 1.12all versionscert_bundDEcpe:/a:redhat:openshift:gitops_1.12
Red Hat OpenShift GitOps <1.15.2all versionscert_bundDE
Red Hat OpenShift Kube Descheduler Operator 5all versionscert_bundDEcpe:/a:redhat:openshift:kube_descheduler_operator_5
Red Hat OpenShift Migration Toolkit for Applications <7.0.3all versionscert_bundDE

showing 20 of 59

advisories (7)

Vendor and ecosystem advisories describing this.

SSA-770721SSA-770721: Multiple Vulnerabilities in SIMATIC RF160B before V2.22024-03-12csaf · siemens_psirtDE
SIMATIC RF160B contain multiple vulnerabilities of different types that could allow an attacker to execute arbitrary code within the context of a privileged process. Siemens has released a new version for SIMATIC RF160B and recommends to update to the latest version.
VDE-2022-021Pepperl+Fuchs: RSM-EX devices - Multiple Bluetooth vulnerabilities2022-05-16csaf · pepperl_fuchs_psirtDE
Critical vulnerabilities have been discovered in the utilized Bluetooth component. For more information see: https://kb.cert.org/vuls/id/799380
WID-SEC-W-2022-1813Bluetooth: Mehrere SchwachstellenDeutsch2021-05-24csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen im Bluetooth Standard ausnutzen, um Dateien zu manipulieren oder Informationen offenzulegen.
WID-SEC-W-2024-1226Red Hat OpenShift: Mehrere SchwachstellenDeutsch2024-05-22csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Red Hat OpenShift ausnutzen, um Dateien zu manipulieren, einen Denial-of-Service-Zustand zu verursachen, beliebigen Code auszuführen, vertrauliche Informationen offenzulegen, seine Privilegien zu erweitern oder um weitere nicht spezifizierte Angriffe auszuführen.
WID-SEC-W-2024-1905IBM QRadar SIEM: Mehrere SchwachstellenDeutsch2024-08-21csaf · cert_bundDE
Ein entfernter, anonymer oder lokaler Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um seine Privilegien zu erhöhen, beliebigen Code auszuführen, Daten zu manipulieren, vertrauliche Informationen offenzulegen, eine Man-in-the-Middle-Situation zu schaffen, Sicherheitsmaßnahmen zu umgehen oder eine Denial-of-Service-Situation zu schaffen.
ICSA-24-074-07Siemens SIMATIC2024-03-14icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code within the context of a privileged process.
ASB-A-1746262512021-06-01vendor · osvUS
In btm_sec_pin_code_request of btm_sec.cc, there is a possible bypass of Bluetooth pairing pin-code due to improperly used crypto. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv cert_bund siemens_psirt pepperl_fuchs_psirt cisa_csaf_ot NVD CVE.org MITRE

published 2021-05-24modified 2026-06-17

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+5004 more

references (28)

External citations — patches, advisories, analysis.

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