CVE-2019-18222

lowpriority · track · 19EPSS 0.003 · 27 %ileDEEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.34% (27th) EPSS
CVSS 1.9 · low
Is it mine?
24 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · nvd · pepperl_fuchs_psirt

EPSS · scored 2026-10-27

The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks.

01

remediations

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

No vendor fix yet; a mitigation is available.

  • Mitigationpepperl_fuchs_psirt

    An external protective measure is required. Minimize network exposure for affected products and ensure that they are not accessible via the Internet. Isolate affected products from the corporate network. If remote access is required, use secure methods such as virtual private networks (VPNs).

02

cvss

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

4.7
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.9–4.7

v2.01.9lowAV:L/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 3.4 · impact 2.9
v3.14.7mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 1 · impact 3.6
v3.14.7mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · Pepperl+Fuchs PSIRT DE
v3.14.3mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)
03

weaknesses

The CWE weakness classes this flaw belongs to.

04

affected products (24)

Products and version ranges known to be affected.

05

advisories (1)

Vendor and ecosystem advisories describing this.

  • VDE-2021-018Pepperl+Fuchs: Multiple vulnerabilites in ICE1 Ethernet IO Modules2021-05-12csaf · pepperl_fuchs_psirtDE

    Critical vulnerability has been discovered in the utilized components rcX, mbedTLS, PROFINET IO Device and EtherNet/IP Core by Hilscher Gesellschaft für Systemautomation mbH. The impact of the vulnerabilities on the affected device is that it can result in: * Denial of Service (DoS) * Remote Code Execution (RCE) * Code Exposure **Note:** ICE1-8IOL-S2-G60L-V1D (70103603) is not affected by CVE-2021-20986

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

09

references (20)

External citations — patches, advisories, analysis.

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