CVE-2020-27853

highpriority · track · 40EPSS 0.039 · 90 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

3.94% (90th) EPSS

CVSS 7.5 · high

Is it mine?

10 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-28

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-134USprimaryCWE-134USCWE-404US

affected products (10)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Wire Swiss GmbH Wire - Audio, Video, and Signaling (AVS)5.3 → 6.4fstec_bduRU
Wire Swiss GmbH Wire Secure Messenger≤ 3.61fstec_bduRU
Wire Swiss GmbH Wire Secure Messenger≤ 3.49.918fstec_bduRU
wire wire< 3.21.2936nvdUScpe:2.3:a:wire:wire:*:*:*:*:*:*:*:*
wire wire< 3.21.3932nvdUScpe:2.3:a:wire:wire:*:*:*:*:*:*:*:*
wire wire< 3.21.3959nvdUScpe:2.3:a:wire:wire:*:*:*:*:*:*:*:*
wire wire - audio, video, and signaling5.3 → 6.4nvdUScpe:2.3:a:wire:wire_-_audio\,_video\,_and_signaling:*:*:*:*:*:*:*:*
wire wire secure messenger< 3.49.918nvdUScpe:2.3:a:wire:wire_secure_messenger:*:*:*:*:*:*:*:*
wire wire secure messenger< 3.61nvdUScpe:2.3:a:wire:wire_secure_messenger:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2020-10-27modified 2026-06-17

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+776 more

references (7)

External citations — patches, advisories, analysis.

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