CVE-2021-35093

lowpriority · track · 26EPSS 0.003 · 17 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.26% (17th) EPSS

CVSS 3.3 · low

Is it mine?

7 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · endress_hauser_psirt · nvd

EPSS · scored 2026-10-27

Possible memory corruption in BT controller when it receives an oversized LMP packet over 2-DH1 link and leads to denial of service in BlueCore

remediations

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

No vendor fix yet; a mitigation is available.

Mitigationendress_hauser_psirt
Endress+Hauser recommends using the FieldPort SFP50 only in secure environment and to allow access tothe devices only to authorized persons.
No fix plannedendress_hauser_psirt
Currently no fix planned from chip supplier.

cvss

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

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.3–6.5

v2.03.3lowAV:A/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 6.5 · impact 2.9

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · product-security@qualcomm.comexploitability 2.8 · impact 3.6

v3.16.5mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Endress+Hauser PSIRT DE

v3.16mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-787US

affected products (7)

Products and version ranges known to be affected.

Firmware 1.31<=1.40 installed on FieldPort SFP50 (mobiLink)all versionsendress_hauser_psirtDE
Firmware 1.31<=1.40 installed on mobiLink Bluetooth and USB modem in bundle with Field Xpert SMT50all versionsendress_hauser_psirtDE
Firmware 1.31<=1.40 installed on mobiLink Bluetooth and USB modem in bundle with Field Xpert SMT70all versionsendress_hauser_psirtDE
Firmware 1.31<=1.40 installed on mobiLink Bluetooth and USB modem in bundle with Field Xpert SMT77all versionsendress_hauser_psirtDE
Qualcomm, Inc. BlueCore≤ CSR8510 A10, CSR8811 A12enisa_euvdEU
qualcomm csr8510 a10 firmwareall versionsnvdUScpe:2.3:o:qualcomm:csr8510_a10_firmware:*:*:*:*:*:*:*:*
qualcomm csr8811 a12 firmwareall versionsnvdUScpe:2.3:o:qualcomm:csr8811_a12_firmware:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

VDE-2022-006Endress+Hauser: FieldPort SFP50 Memory Corruption in Bluetooth Controller Firmware2022-03-24csaf · endress_hauser_psirtDE
Possible memory corruption in BT controller when it receives an oversized LMP packet over 2-DH1 link and leads to denial of service.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd endress_hauser_psirt nvd NVD CVE.org MITRE

published 2022-01-03modified 2026-06-17

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+16123 more

references (4)

External citations — patches, advisories, analysis.

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