Vulnerability in Ypsomed Mylife

CVE-2021-27499

Ypsomed mylife Cloud, mylife Mobile Application, Ypsomed mylife Cloud: All versions prior to 1.7.2, Ypsomed mylife App: All versions prior to 1.7.5,The application layer encryption of the communication protocol between the Ypsomed mylife App and mylife Cloud uses non-random IVs, which allows man-in-the-middle attackers to tamper with messages.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.005 (39.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-27499: held from 0.005 to 0.005.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

  • Ypsomed Mylife
  • Ypsomed Mylife Cloud
  • Ypsomed Mylife Cloud, Mobile Application — versions Ypsomed mylife Cloud: All versions prior to 1.7.2, Ypsomed mylife App: All versions prior to 1.7.5

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-27499?
CVE-2021-27499 is a medium-severity vulnerability in Ypsomed Mylife, classified under Generation of Predictable IV with CBC Mode. CVSS score: 5.9/10. Published 2021-08-02.
How severe is CVE-2021-27499?
Medium severity. CVSS v3 base score is 5.9 out of 10.