Cyber Resilience

CVE-2025-48025

Samsung Exynos 980 Firmware

Published
20 October 2025
Modified
28 October 2025
Patch / advisory
CVSS Score v3.1 4.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS Score 0.0026 18th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2025-48025 is a medium-severity Improper Access Control (CWE-284) vulnerability in Samsung Exynos 980 Firmware. Its CVSS base score is 4.3 (Medium).

Operationally, ranked at the 18th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and AU-9 (Protection of Audit Information) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

In Samsung Mobile Processor and Wearable Processor Exynos 980, 850, 1280, 1330, 1380, 1480, 1580, W920, W930, and W1000, there is an improper access control vulnerability related to a log file.

CWE(s)

Related Threats

CVEs Like This One

CVE-2024-28818Same product: Samsung Exynos 1280
CVE-2023-21465Same vendor: Samsung
CVE-2023-21518Same vendor: Samsung
CVE-2023-21490Same vendor: Samsung
CVE-2025-21031Same vendor: Samsung
CVE-2023-42542Same vendor: Samsung
CVE-2023-42540Same vendor: Samsung
CVE-2023-21495Same vendor: Samsung
CVE-2023-21442Same vendor: Samsung
CVE-2023-21493Same vendor: Samsung

Affected Assets

samsung
exynos 980 firmware
all versions
samsung
exynos 850 firmware
all versions
samsung
exynos 1280 firmware
all versions
samsung
exynos 1330 firmware
all versions
samsung
exynos 1380 firmware
all versions
samsung
exynos 1480 firmware
all versions
samsung
exynos 1580 firmware
all versions
samsung
exynos w930 firmware
all versions
samsung
exynos w920 firmware
all versions
samsung
exynos w1000 firmware
all versions

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • AC-3 Access Enforcement
  • AU-9 Protection of Audit Information
  • AC-6 Least Privilege
Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)
  • 8 hardening rules · 4 OS baselines
Validate
Prove the fix (OWASP ASVS)
  • V10.3.5

Mitigating Controls (NIST 800-53 r5) AI

prevent

Directly enforces access control policy on the log file so that only authorized subjects can read or modify it.

prevent

Requires cryptographic or other protection mechanisms that prevent unauthorized access to audit records exactly as described in the log-file vulnerability.

prevent

Limits the set of users and processes granted any access to the log file to the minimum necessary privileges.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-05 mostly match
prevents

PR.AA-05 directly enforces policy-based access management and least privilege, eliminating most improper-access-control defects, yet CWE-284 also covers implementation flaws and design gaps outside a single management control.

PR.PS-01 mostly match
prevents

Hardened baselines and deviation monitoring directly eliminate most configuration-induced access-control defects, yet CWE-284 also encompasses code-level and design flaws outside the scope of configuration management alone.

PR.PS-06 mostly match
prevents

Secure SDLC practices catch most access-control defects during design/coding/testing (mostly), yet leave residual risk from runtime configuration, architecture, and operational controls (partial).

PR.AA-01 partial match
prevents

PR.AA-01 supplies managed identities/credentials that support but do not implement access-control decisions, so it only partially prevents CWE-284 in either direction.

PR.AA-03 partial match
prevents

Authentication directly blocks unauthenticated actors (partial prevention of CWE-284) but leaves authorization logic, policy enforcement, and role checks untouched, so the control neither eliminates nor fully mitigates the broader weakness.

PR.DS-01 partial match
prevents

PR.DS-01 encryption mitigates impact of failed access checks on stored data but neither implements nor constrains access-control logic itself.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

prevents

Defining and enforcing explicit access rights and restrictions for each entity directly stops the assignment of permissions that exceed what is required, eliminating the root condition that allows improper access control.

prevents

Formal authorization, role-based provisioning, and timely revocation of access rights directly stop the creation of accounts or permissions that exceed what the business actually needs.

prevents

By enforcing explicit rules on which identities or groups may perform read, write, delete or execute operations and by denying anonymous access to sensitive data, the control directly stops the creation of overly permissive or missing access-control checks.

prevents

Requiring one-to-one mapping of identities to entities and timely removal of unused identities directly stops attackers from leveraging stale or shared accounts to bypass access restrictions.

prevents

By explicitly transferring security roles and responsibilities when personnel change jobs or leave, the control reduces the chance that former employees retain access rights they no longer need, thereby limiting improper access control.

prevents

Physical entry controls enforce explicit authorization and authentication at every access point, directly stopping unauthorized actors from reaching information-processing assets.

References