dbcve.org
Exynos 980 FirmwareOperating system · Samsung

CVE-2025-58341

MEDIUM · 6.2 CVSS v3.1 Published 2026-02-03
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
67/100
Remediation priority · Elevated
No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An issue was discovered in the Wi-Fi driver in Samsung Mobile Processor and Wearable Processor Exynos 980, 850, 1080, 1280, 1330, 1380, 1480, 1580, W920, W930 and W1000. There is unbounded memory allocation via a large buffer in a /proc/driver/unifi0/ap_cert_disable_ht_vht write operation, leading to kernel memory exhaustion.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A vulnerability in the Wi-Fi driver for Samsung Exynos processors (980, 850, 1080, 1280, 1330, 1380, 1480, 1580, W920, W930, W1000) allows unbounded memory allocation via a /proc/driver/unifi0/ap_cert_disable_ht_vht write operation without proper input size validation, leading to kernel memory exhaustion (DoS).

MitigationApply vendor firmware/security patch from Samsung for the affected Exynos processors. If unavailable, consider disabling Wi-Fi functionality or restricting access to the vulnerable /proc interface through kernel access controls.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Exynos 980 FirmwareOperating system
Affected:all versions
Exynos 850 FirmwareOperating system
Affected:all versions
Exynos 1080 FirmwareOperating system
Affected:all versions
Exynos 1280 FirmwareOperating system
Affected:all versions
Exynos 1330 FirmwareOperating system
Affected:all versions
Exynos 1380 FirmwareOperating system
Affected:all versions
Exynos 1480 FirmwareOperating system
Affected:all versions
Exynos 1580 FirmwareOperating system
Affected:all versions

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Exynos processor model
    Check the processor/soc information on the device (e.g., via /proc/cpuinfo, device info in settings, or kernel cmdline). Look for model numbers such as s5e9830 (Exynos 980), s5e3830 (Exynos 850), s5e9835 (Exynos 1080), s5e8825 (Exynos 1280), s5e8835 (Exynos 1330), s5e8830 (Exynos 1380), s5e8840 (Exynos 1480), or s5e8845 (Exynos 1580).
    Affected if The device uses any of the Exynos 980, 850, 1080, 1280, 1330, 1380, 1480, or 1580 processors.
  2. Verify Wi-Fi driver is loaded
    Check if the unifi Wi-Fi driver module or firmware is active on the system. Look for the unifi0 interface or module via 'lsmod | grep unifi' or check Wi-Fi functionality is operational.
    Affected if The unifi Wi-Fi driver (unifi0) is loaded and the Wi-Fi interface is present.
  3. Locate vulnerable proc interface
    Check for the existence of /proc/driver/unifi0/ap_cert_disable_ht_vht using 'ls -la /proc/driver/unifi0/' or similar path inspection.
    Affected if The file /proc/driver/unifi0/ap_cert_disable_ht_vht exists on the system.
  4. Check write access to vulnerable interface
    Verify write permissions on the proc interface: 'ls -la /proc/driver/unifi0/ap_cert_disable_ht_vht'. If writable by the Wi-Fi driver process or an attacker, the flaw can be triggered.
    Affected if The /proc/driver/unifi0/ap_cert_disable_ht_vht interface is writable without proper size validation.

If the device runs on an affected Exynos processor (980, 850, 1080, 1280, 1330, 1380, 1480, 1580) and the unifi Wi-Fi driver is active with the vulnerable proc interface present and accessible, the environment is affected by this unbounded memory allocation flaw.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor firmware/security patch from Samsung for the affected Exynos processors. If unavailable, consider disabling Wi-Fi functionality or restricting access to the vulnerable /proc interface through kernel access controls.

Fix this in Exynos 980 Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing3.0 h
  • Review / QA2.0 h
8.0 hours of engineering $1,390
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-58341 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data