CASCACascade Atlas

Evidence dossier

CVE-2021-25371

CVE-2021-25371

57.0–74.8Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

A vulnerability in DSP driver prior to SMR Mar-2021 Release 1 allows attackers load arbitrary ELF libraries inside DSP.

State
PUBLISHED
Published
Mar 26, 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 EPSS0.80%

2026-07-18 · v2026.06.15 · percentile 52.5%

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

A vulnerability in DSP driver prior to SMR Mar-2021 Release 1 allows attackers load arbitrary ELF libraries inside DSP.

CISA KEVoriginal assertion
observed_exploitation

Samsung Mobile Devices Unspecified Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.008020000000; percentile 0.525340000000

Applicability

Cited product scope

Trace impact →
Samsung MobileSamsung Mobile Devices
[{"status": "affected", "version": "Q(10.0), R(11.0) devices with exynos980, exynos2100, exynos9830", "lessThan": "SMR Mar-2021 Release 1", "versionType": "custom"}]unknown
Unknown vendorUnknown product
cpe:2.3:h:samsung:exynos_2100:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:samsung:exynos_980:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:samsung:exynos_9830:-:*:*:*:*:*:*:*constrained
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:11.0:smr-feb-2021-r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:samsung:android:11.0:smr-jan-2021-r1:*:*:*:*:*:*supported

Assessments

CVSS by origin

6.7
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2
nvd@nist.govCVSS 2.0 · role PrimaryAV:L/AC:L/Au:N/C:C/I:C/A:C
6.1
mobile.security@samsung.comCVSS 3.1 · role SecondaryCVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
6.1
Samsung MobileCVSS 3.1 · role unknownCVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

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.