# CVE-2025-59439: Denial of service in n/a

> Attackers can cause a denial of service on Samsung Exynos devices by sending malformed NAS Registration messages due to improper exception handling.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Feb 2026
- **Updated:** 5 Feb 2026
- **Also known as:** GHSA-pgj6-pfrx-wvwj

## What is CVE-2025-59439?

CVE-2025-59439 is a high-severity denial of service vulnerability in Samsung Exynos 1080 Firmware, published on 3 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in Samsung Mobile Processor, Wearable Processor and Modem Exynos 980, 990, 850, 1080, 9110, W920, W930, W1000 and Modem 5123. Incorrect handling of NAS Registration messages leads to a Denial of Service because of Improper Handling of Exceptional Conditions.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2025-59439?

It affects 9 products.


Products: Samsung Exynos 1080 Firmware, Samsung Exynos 850 Firmware, Samsung Exynos 9110 Firmware, Samsung Exynos 980 Firmware, Samsung Exynos 990 Firmware, Samsung Exynos Modem 5123 Firmware, Samsung Exynos W1000 Firmware, Samsung Exynos W920 Firmware, Samsung Exynos W930 Firmware.

## How do I fix CVE-2025-59439?

No fix has been published for CVE-2025-59439 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-59439 being exploited?

There is no known exploitation of CVE-2025-59439 in the wild and no public exploit code.

## Other vulnerabilities in Samsung Exynos 1080 Firmware

- [CVE-2025-54328](https://insights.sbomify.com/CVE-2025-54328/): Memory corruption in n/a (critical 10.0)
- [CVE-2025-62818](https://insights.sbomify.com/CVE-2025-62818/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-58349](https://insights.sbomify.com/CVE-2025-58349/): Denial of service in n/a (critical 9.1)
- [CVE-2025-27807](https://insights.sbomify.com/CVE-2025-27807/): Memory corruption in n/a (critical 9.1)
- [CVE-2025-47202](https://insights.sbomify.com/CVE-2025-47202/): Memory corruption in n/a (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-59439 and fix it if it is affected.

What it is: CVE-2025-59439 is a high-severity denial of service vulnerability in Samsung Exynos 1080 Firmware, published on 3 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-59439 in the wild and no public exploit code.

Affected product: Samsung Exynos 1080 Firmware. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-59439/ (Markdown: https://insights.sbomify.com/CVE-2025-59439/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-59439
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-59439
- OSV: https://osv.dev/vulnerability/CVE-2025-59439

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-59439/
Summaries are generated and may contain mistakes; the official description above is the record.