CVE-2020-16123

lowpriority · track · 19EPSS 0.003 · 25 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.32% (25th) EPSS

CVSS 2.1 · low

Is it mine?

9 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

An Ubuntu-specific patch in PulseAudio created a race condition where the snap policy module would fail to identify a client connection from a snap as coming from a snap if SCM_CREDENTIALS were missing, allowing the snap to connect to PulseAudio without proper confinement. This could be exploited by an attacker to expose sensitive information. Fixed in 1:13.99.3-1ubuntu2, 1:13.99.2-1ubuntu2.1, 1:13.99.1-1ubuntu3.8, 1:11.1-1ubuntu7.11, and 1:8.0-0ubuntu3.15.

cvss

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

4.7

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.1–4.7

v2.02.1lowAV:L/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 2.9

v3.14.7mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 1 · impact 3.6

v3.14.4mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.14.4mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:Nsecondary · security@ubuntu.comexploitability 0.8 · impact 3.6

v3.14.3mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-362USprimary

affected products (9)

Products and version ranges known to be affected.

Canonical pulseaudio1:11.1-1 → 1:11.1-1ubuntu7.11enisa_euvdEU
Canonical pulseaudio1:13.99.1-1 → 1:13.99.1-1ubuntu3.8enisa_euvdEU
Canonical pulseaudio1:13.99.2-1 → 1:13.99.2-1ubuntu2.1enisa_euvdEU
Canonical pulseaudio1:13.99.3-1 → 1:13.99.3-1ubuntu2enisa_euvdEU
Canonical pulseaudio1:8.0-0 → 1:8.0-0ubuntu3.15enisa_euvdEU
canonical ubuntu linux= 16.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 18.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 20.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 20.10nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2020-12-04modified 2026-06-17

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+4153 more

references (11)

External citations — patches, advisories, analysis.

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