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Fencer Intel
medium 6.4

CVE-2025-23421 json

Qardio iOS and Android applications Files or Directories Accessible to External Parties

published last yr. modified 4mo ago also EUVD-2025-3169

cvss
6.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 13%
public exploits
0
none known

Summary

An attacker could obtain firmware files and reverse engineer their intended use leading to loss of confidentiality and integrity of the hardware devices enabled by the Qardio iOS and Android applications.

Is CVE-2025-23421 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSMA-25-044-01 updated cvss 6.4

Qardio Heart Health IOS and Android Application and QardioARM A100

  • Qardio Heart Health Android Mobile Application 2.5.1 Qardio Heart Health IOS Mobile Application 2.7.4 QardioARM A100
    affected: mitigation “Qardio has not responded to requests to work with CISA to mitigate these vulnerabilities. Users of these affected products are invited to contact Qardio customer support for additional information.” qardio.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 6.4 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
CNA 4.0 6.9 CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
CNA 4.0 6.9 CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • Qardio Heart Health IOS Mobile Application
  • Qardio Heart Health Android Mobile Application

Classification

Weakness
  • CWE-552 Files or Directories Accessible to External Parties

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.