# CVE-2026-21017: Missing authorization in Samsung Mobile Devices

> Local attackers can access privileged files due to improper privilege handling in the SecTelephonyProvider component of Samsung mobile devices.

- **Severity:** Medium 4.6 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 5 Jun 2026
- **Updated:** 5 Jun 2026
- **Also known as:** GHSA-jvgc-m9mp-hwqr

## What is CVE-2026-21017?

CVE-2026-21017 is a medium-severity missing authorization vulnerability in Samsung Android, published on 5 Jun 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Improper handling of insufficient privileges in SecTelephonyProvider prior to SMR Jun-2026 Release 1 allows local attackers to access privileged files.

## Which versions are affected by CVE-2026-21017?

It affects 1 product.


Products: Samsung Android.

## How do I fix CVE-2026-21017?

No fix has been published for CVE-2026-21017 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-21017 being exploited?

There is no known exploitation of CVE-2026-21017 in the wild and no public exploit code.

Public exploit code:

- https://github.com/George0Papasotiriou/CVE-2026-21017-LDAP-Anonymous-Bind-Privilege-Escalation (github_poc): https://github.com/George0Papasotiriou/CVE-2026-21017-LDAP-Anonymous-Bind-Privilege-Escalation

## Other vulnerabilities in Samsung Android

- [CVE-2025-21042](https://insights.sbomify.com/CVE-2025-21042/): Samsung Mobile Devices Out-of-Bounds Write (high 8.8, exploited in the wild)
- [CVE-2025-21043](https://insights.sbomify.com/CVE-2025-21043/): Samsung Mobile Devices Out-of-Bounds Write (high 8.8, exploited in the wild)
- [CVE-2021-25487](https://insights.sbomify.com/CVE-2021-25487/): Samsung Mobile Devices Out-of-Bounds Read (high 7.3, exploited in the wild)
- [CVE-2021-25394](https://insights.sbomify.com/CVE-2021-25394/): Samsung Mobile Devices Race Condition (medium 6.4, exploited in the wild)
- [CVE-2021-25395](https://insights.sbomify.com/CVE-2021-25395/): Samsung Mobile Devices Race Condition (medium 6.4, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-21017 and fix it if it is affected.

What it is: CVE-2026-21017 is a medium-severity missing authorization vulnerability in Samsung Android, published on 5 Jun 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-21017 in the wild and no public exploit code.

Affected product: Samsung Android. 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-2026-21017/ (Markdown: https://insights.sbomify.com/CVE-2026-21017/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-21017
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-21017
- OSV: https://osv.dev/vulnerability/CVE-2026-21017

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-21017/
Summaries are generated and may contain mistakes; the official description above is the record.