CRITICAL

CVE-2020-27853

CVSS v3

9.8

CRITICAL

EPSS Score

3.9 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2020-27853 yet.

Full record on NVD

Description

Wire before 2020-10-16 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a format string. This affects Wire AVS (Audio, Video, and Signaling) 5.3 through 6.x before 6.4, the Wire Secure Messenger application before 3.49.918 for Android, and the Wire Secure Messenger application before 3.61 for iOS. This occurs via the value parameter to sdp_media_set_lattr in peerflow/sdp.c.

Technical details

Published: 2020-10-27

Frequently asked questions

What is CVE-2020-27853?

Is CVE-2020-27853 actively exploited?

Active exploitation of CVE-2020-27853 has not been confirmed. Its EPSS score was 3.9% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-27853?

CVE-2020-27853 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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