CVE-2020-27853

CRITICAL

Wire < 3.21.2936/3.21.3932/3.21.3959, 5.3-6.3, < 3.49.918, < 3.61 - RCE via SDP Media Attribute Format String

Title source: llm

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.

References (2)

Core 2

Core References

Exploit, Third Party Advisory x_refsource_misc

https://github.com/wireapp/wire-audio-video-signaling/issues/23#issuecomment-710075689

Exploit, Third Party Advisory x_refsource_misc

http://github.security.telekom.com/2020/11/wire-secure-messenger-format-string-vulnerability.html

Scores

CVSS v3 9.8

EPSS 0.0378

EPSS Percentile 88.5%

Attack Vector NETWORK

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

Details

CWE

CWE-134

Status published

Products (6)

wire/wire < 3.21.2936

wire/wire < 3.21.3932

wire/wire < 3.21.3959

wire/wire_-_audio\,_video\,_and_signaling 5.3 - 6.4

wire/wire_secure_messenger < 3.49.918

wire/wire_secure_messenger < 3.61

Published Oct 27, 2020

Tracked Since Feb 18, 2026