CVE-2025-70083
OpenSatKit Stack Buffer Overflow Vulnerability
Description
An issue was discovered in OpenSatKit 2.2.1. The DirName field in the telecommand is provided by the ground segment and must be treated as untrusted input. The program copies DirName into the local buffer DirWithSep using strcpy. The size of this buffer is OS_MAX_PATH_LEN. If the length of DirName is greater than or equal to OS_MAX_PATH_LEN, a stack buffer overflow occurs, overwriting adjacent stack memory. The path length check (FileUtil_AppendPathSep) is performed after the strcpy operation, meaning the validation occurs too late and cannot prevent the overflow.
INFO
Published Date :
Feb. 11, 2026, 6:16 p.m.
Last Modified :
Feb. 17, 2026, 3:03 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Validate input length before using strcpy.
- Ensure buffer size is adequate for input.
- Implement bounds checking for all string copies.
- Update to a secure coding standard.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-70083.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-70083 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-70083
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-70083 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-70083 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Feb. 17, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:opensatkit:opensatkit:2.2.1:*:*:*:*:*:*:* Added Reference Type MITRE: https://gist.github.com/jonafk555 Types: Third Party Advisory Added Reference Type MITRE: https://github.com/OpenSatKit/OpenSatKit Types: Product Added Reference Type MITRE: https://github.com/OpenSatKit/OpenSatKit/releases/tag/v2.2.1 Types: Release Notes Added Reference Type MITRE: https://raw.githubusercontent.com/OpenSatKit/OpenSatKit/master/cfs/apps/filemgr/fsw/src/dir.c Types: Product Added Reference Type MITRE: https://raw.githubusercontent.com/OpenSatKit/OpenSatKit/master/cfs/apps/filemgr/fsw/src/dir.c#:~:text=strcpy%28DirWithSep Types: Product -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 12, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-121 -
New CVE Received by [email protected]
Feb. 11, 2026
Action Type Old Value New Value Added Description An issue was discovered in OpenSatKit 2.2.1. The DirName field in the telecommand is provided by the ground segment and must be treated as untrusted input. The program copies DirName into the local buffer DirWithSep using strcpy. The size of this buffer is OS_MAX_PATH_LEN. If the length of DirName is greater than or equal to OS_MAX_PATH_LEN, a stack buffer overflow occurs, overwriting adjacent stack memory. The path length check (FileUtil_AppendPathSep) is performed after the strcpy operation, meaning the validation occurs too late and cannot prevent the overflow. Added Reference https://gist.github.com/jonafk555 Added Reference https://github.com/OpenSatKit/OpenSatKit Added Reference https://github.com/OpenSatKit/OpenSatKit/releases/tag/v2.2.1 Added Reference https://raw.githubusercontent.com/OpenSatKit/OpenSatKit/master/cfs/apps/filemgr/fsw/src/dir.c Added Reference https://raw.githubusercontent.com/OpenSatKit/OpenSatKit/master/cfs/apps/filemgr/fsw/src/dir.c#:~:text=strcpy%28DirWithSep