CVE-2021-39810

highpriority · track · 31OT risk · elevatedEPSS 0.001 · 2 %ileDEEUNLUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.12% (2nd) EPSS
CVSS 7.8 · high
Is it mine?
19 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-27

In verifyDefaults of CardEmulationManager.java, there is a possible way to set a third party app as the default contactless payment app without user consent due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

01

cvss

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

7.8
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 1.8 · impact 5.9
v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL
02

ssvc

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

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-862USprimary
04

affected products (19)

Products and version ranges known to be affected.

05

advisories (4)

Vendor and ecosystem advisories describing this.

  • NCSC-2025-0273Kwetsbaarheden verholpen in Google Android en Samsung MobileNL2025-09-04csaf · ncsc_nlNL

    Google heeft kwetsbaarheden verholpen in Android. Samsung heeft de voor Samsung Mobile relevante kwetsbaarheden verholpen in Samsung Mobile.

  • WID-SEC-W-2023-2778Google Android: Mehrere SchwachstellenDeutsch2023-10-30csaf · cert_bundDE

    Ein entfernter anonymer Angreifer kann mehrere Schwachstellen in Google Android ausnutzen, um beliebigen Code auszuführen, einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen und seine Privilegien zu erhöhen.

  • WID-SEC-W-2025-1944Android Patchday September 2025: Multiple VulnerabilitiesDeutsch2025-09-02csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Google Android ausnutzen, um seine Privilegien zu erhöhen, beliebigen Code auszuführen, einen Denial-of-Service-Zustand zu verursachen oder andere nicht näher spezifizierte Angriffe durchzuführen.

  • ASB-A-2126107362025-09-01vendor · osvUS

    In verifyDefaults of CardEmulationManager.java, there is a possible way to set a third party app as the default contactless payment app without user consent due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdosvcert_bundncsc_nlnvdNVDCVE.orgMITRE
published 2023-10-30modified 2026-06-17
09

references (8)

External citations — patches, advisories, analysis.

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