CVE-2021-32666

Name: CVE-2021-32666
Creator: NVD / NIST
Published: 2021-06-03T22:15:08.067+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.92%

Last modified Jun 17, 2026

CVE-2021-32666 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. wire-ios is the iOS version of Wire, an open-source secure messaging app. In wire-ios versions 3.8.0 and prior, a vulnerability exists that can cause a denial of service between users. EPSS estimates a 0.92% chance of exploitation in the next 30 days.

Description

wire-ios is the iOS version of Wire, an open-source secure messaging app. In wire-ios versions 3.8.0 and prior, a vulnerability exists that can cause a denial of service between users. If a user has an invalid assetID for their profile picture and it contains the " character, it will cause the iOS client to crash. The vulnerability is patched in wire-ios version 3.8.1.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.92%

55.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Wire	Wire	< 3.81

References

https://github.com/wireapp/wire-ios-data-model/commit/35af3f632085f51a2ce7f608fdaeffd1a69ad89fPatch, Third Party Advisory
https://github.com/wireapp/wire-ios/security/advisories/GHSA-2x9x-vh27-h4rvPatch, Third Party Advisory
https://github.com/wireapp/wire-ios-data-model/commit/35af3f632085f51a2ce7f608fdaeffd1a69ad89fPatch, Third Party Advisory
https://github.com/wireapp/wire-ios/security/advisories/GHSA-2x9x-vh27-h4rvPatch, Third Party Advisory

Timeline

Published: Jun 3, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32666?

How severe is CVE-2021-32666?

CVE-2021-32666 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32666?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-32666?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST