# CVE-2025-1115: RT-Thread lwp_syscall.c sys_timer_settime information disclosure

> A local attacker can exploit improper input validation in RT-Thread system calls to disclose sensitive information.

- **Severity:** Medium 4.8 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Feb 2025
- **Updated:** 16 Feb 2025
- **Also known as:** GHSA-4ch9-xrp7-23v7

## What is CVE-2025-1115?

CVE-2025-1115 is a medium-severity vulnerability in RT-Thread, published on 8 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability classified as problematic was found in RT-Thread up to 5.1.0. Affected by this vulnerability is the function sys_device_close/sys_device_control/sys_device_find/sys_device_init/sys_device_open/sys_device_read/sys_device_register/sys_device_write/sys_event_delete/sys_event_recv/sys_event_send/sys_mb_delete/sys_mb_recv/sys_mb_send/sys_mb_send_wait/sys_mq_recv/sys_mq_send/sys_mq_urgent/sys_mutex_delete/sys_mutex_release/sys_mutex_take/sys_rt_timer_control/sys_rt_timer_delete/sys_rt_timer_start/sys_rt_timer_stop/sys_sem_delete/sys_sem_release/sys_sem_take/sys_shmat/sys_shmdt/sys_thread_create/sys_thread_delete/sys_thread_startup/sys_timer_delete/sys_timer_gettime/sys_timer_settime of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument arg[0] leads to information disclosure. An attack has to be approached locally.

Weakness: CWE-284 (Improper Access Control), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2025-1115?

It affects 1 product.


Products: Rt-Thread Rt-Thread.

## How do I fix CVE-2025-1115?

No fix has been published for CVE-2025-1115 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-1115 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-1115 exists.

## Other vulnerabilities in RT-Thread

- [CVE-2024-25393](https://insights.sbomify.com/CVE-2024-25393/): Memory corruption in n/a (critical 9.8)
- [CVE-2024-25395](https://insights.sbomify.com/CVE-2024-25395/): Memory corruption in n/a (high 8.8)
- [CVE-2025-5865](https://insights.sbomify.com/CVE-2025-5865/): RT-Thread Parameter lwp_syscall.c sys_select memory corruption (high 8.6)
- [CVE-2025-5866](https://insights.sbomify.com/CVE-2025-5866/): RT-Thread lwp_syscall.c sys_sigprocmask array index (high 8.6)
- [CVE-2025-5867](https://insights.sbomify.com/CVE-2025-5867/): RT-Thread lwp_syscall.c csys_sendto null pointer dereference (high 8.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-1115 and fix it if it is affected.

What it is: CVE-2025-1115 is a medium-severity vulnerability in RT-Thread, published on 8 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-1115 exists.

Affected product: RT-Thread. 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-2025-1115/ (Markdown: https://insights.sbomify.com/CVE-2025-1115/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-1115
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-1115
- OSV: https://osv.dev/vulnerability/CVE-2025-1115

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-1115/
Summaries are generated and may contain mistakes; the official description above is the record.