CVE-2023-21504

criticalpriority · track · 39EPSS 0.006 · 50 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.62% (50th) EPSS

CVSS 9.8 · critical

Is it mine?

8 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

Potential buffer overflow vulnerability in mm_Plmncoordination.c in Shannon baseband prior to SMR May-2023 Release 1 allows remote attackers to cause invalid memory access.

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 · medium–critical · 5.6–9.8

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

v3.15.6mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · ENISA EU

v3.15.6mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · mobile.security@samsung.comexploitability 2.2 · impact 3.4

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)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-120USprimaryCWE-20US

affected products (8)

Products and version ranges known to be affected.

Samsung Android 11all versionscert_bundDEcpe:/o:samsung:android:11
Samsung Android 12all versionscert_bundDEcpe:/o:samsung:android:12
Samsung Android 13all versionscert_bundDEcpe:/o:samsung:android:13
Samsung Exynos CP chipsetsall versionscert_bundDEcpe:/h:samsung:exynos:cp_chipsets
Samsung Mobile Samsung Mobile DevicesSelect devices using Exynos CP chipsets → SMR May-2023 Release 1enisa_euvdEU
samsung android= 11.0nvdUScpe:2.3:o:samsung:android:*:*:*:*:*:*:*:*
samsung android= 12.0nvdUScpe:2.3:o:samsung:android:*:*:*:*:*:*:*:*
samsung android= 13.0nvdUScpe:2.3:o:samsung:android:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1117Samsung Android und Samsung Exynos: Mehrere SchwachstellenDeutsch2023-05-01csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Samsung Android und Samsung Exynos ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, seine Privilegien zu erweitern und Daten zu manipulieren.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2023-05-04modified 2026-06-17

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+5663 more

references (4)

External citations — patches, advisories, analysis.

scry

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