CASCACascade Atlas

Evidence dossier

CVE-2021-25489

CVE-2021-25489

49.7–70.2Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

Assuming radio permission is gained, missing input validation in modem interface driver prior to SMR Oct-2021 Release 1 results in format string bug leading to kernel panic.

State
PUBLISHED
Published
Oct 6, 2021
Updated
Oct 21, 2025
Evidence coverage
72%
CISA KEVCatalog member

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable

FIRST EPSS0.50%

2026-07-18 · v2026.06.15 · percentile 39.4%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

Samsung Mobileoriginal assertion
container

Assuming radio permission is gained, missing input validation in modem interface driver prior to SMR Oct-2021 Release 1 results in format string bug leading to kernel panic.

CISA KEVoriginal assertion
observed_exploitation

Samsung Mobile Devices Improper Input Validation Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.004990000000; percentile 0.394310000000

Applicability

Cited product scope

Trace impact →
Samsung MobileSamsung Mobile Devices
[{"status": "affected", "version": "O(8.1), P(9.0), Q(10.0), R(11.0)", "lessThan": "SMR Oct-2021 Release 1", "versionType": "custom"}]unknown
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:10.0:smr-apr-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:10.0:smr-aug-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:10.0:smr-feb-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:10.0:smr-jan-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:10.0:smr-jul-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:10.0:smr-jun-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:10.0:smr-mar-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:10.0:smr-may-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:10.0:smr-sep-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:11.0:smr-apr-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:11.0:smr-aug-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:11.0:smr-feb-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:11.0:smr-jan-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:11.0:smr-jul-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:11.0:smr-jun-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:11.0:smr-mar-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:11.0:smr-may-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:11.0:smr-sep-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:8.1:-:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:9.0:smr-apr-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:9.0:smr-aug-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:9.0:smr-feb-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:9.0:smr-jan-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:9.0:smr-jul-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:9.0:smr-jun-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:9.0:smr-mar-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:9.0:smr-may-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:9.0:smr-sep-2021-r1:*:*:*:*:*:*supported

Assessments

CVSS by origin

5.5
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.9
nvd@nist.govCVSS 2.0 · role PrimaryAV:L/AC:L/Au:N/C:N/I:N/A:C
3.3
mobile.security@samsung.comCVSS 3.1 · role SecondaryCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
3.3
Samsung MobileCVSS 3.1 · role unknownCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.