What is CVE-2021-41094?

CVE-2021-41094 is a medium-severity vulnerability in Wire, classified under Exposure of Resource to Wrong Sphere. CVSS score: 4.2/10. Published 2021-10-04.

How severe is CVE-2021-41094?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Vulnerability in Wire

CVE-2021-41094

Wire is an open source secure messenger. Users of Wire by Bund may bypass the mandatory encryption at rest feature by simply disabling their device passcode. Upon launching, the app will attempt to enable encryption at rest by generating encryption keys via the Secure Enclave, however it will fail silently if no device passcode is set. The user has no indication that encryption at rest is not active since the feature is hidden to them. This issue has been resolved in version 3.70

Published 2021-10-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (6.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Wire
Wireapp Wire-Ios — versions >= 3.68, < 3.70

Weakness classification (CWE)

CWE-668 — Exposure of Resource to Wrong Sphere

References

github.com/wireapp/wire-ios/security/advisories/GHSA-h4m7-pr8h-j7rf (Third Party Advisory)
github.com/wireapp/wire-ios/commit/5ba3eb180efc3fc795d095f9c84ae7f109b84746 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-41094?: CVE-2021-41094 is a medium-severity vulnerability in Wire, classified under Exposure of Resource to Wrong Sphere. CVSS score: 4.2/10. Published 2021-10-04.
How severe is CVE-2021-41094?: Medium severity. CVSS v3 base score is 4.2 out of 10.