CVE-2023-21631

criticalpriority · track · 39EPSS 0.004 · 30 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.36% (30th) EPSS

CVSS 9.8 · critical

Is it mine?

323 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-27

Weak Configuration due to improper input validation in Modem while processing LTE security mode command message received from network.

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

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

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · product-security@qualcomm.comexploitability 3.9 · impact 3.6

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.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20US

affected products (323)

Products and version ranges known to be affected.

Google Android 11all versionscert_bundDEcpe:/o:google:android:11
Google Android 12all versionscert_bundDEcpe:/o:google:android:12
Google Android 12Lall versionscert_bundDEcpe:/o:google:android:12l
Google Android 13all versionscert_bundDEcpe:/o:google:android:13
Samsung Androidall versionscert_bundDEcpe:/o:samsung:android:-
Samsung Android 13all versionscert_bundDEcpe:/o:samsung:android:13
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Qualcomm, Inc. Snapdragon≤ Snapdragon 4 Gen 2 Mobile Platformenisa_euvdEU
Qualcomm, Inc. Snapdragon≤ QCS4290enisa_euvdEU
Qualcomm, Inc. Snapdragon≤ WCD9385enisa_euvdEU
Qualcomm, Inc. Snapdragon≤ SM7315enisa_euvdEU
Qualcomm, Inc. Snapdragon≤ WCD9306enisa_euvdEU
Qualcomm, Inc. Snapdragon≤ FastConnect 6900enisa_euvdEU
Qualcomm, Inc. Snapdragon≤ QCA6426enisa_euvdEU
Qualcomm, Inc. Snapdragon≤ Snapdragon Wear 2100 Platformenisa_euvdEU
Qualcomm, Inc. Snapdragon≤ WCN3950enisa_euvdEU
Qualcomm, Inc. Snapdragon≤ AR8035enisa_euvdEU
Qualcomm, Inc. Snapdragon≤ Snapdragon 4 Gen 1 Mobile Platformenisa_euvdEU
Qualcomm, Inc. Snapdragon≤ QCA6698AQenisa_euvdEU
Qualcomm, Inc. Snapdragon≤ Snapdragon 8cx Gen 2 5G Compute Platform (SC8180XP-AA, AB)enisa_euvdEU

showing 20 of 323

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1669Android Patchday Juli 2023Deutsch2023-07-05csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Google Android ausnutzen, um beliebigen Programmcode mit Administratorrechten auszuführen, seine Privilegien zu erweitern, Informationen offenzulegen oder einen Denial of Service Zustand herbeizuführen.
WID-SEC-W-2023-1981Samsung Android: Mehrere SchwachstellenDeutsch2023-08-07csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Samsung Android ausnutzen, um seine Privilegien zu erhöhen.

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 CVE.org MITRE

published 2023-07-04modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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