CVE 9.8 CRITICAL

CVE-2025-70085_CVE-2025-70085

February 12, 2026 invoker category_cve

9.8 / 10

CRITICAL

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

Description

An issue was discovered in OpenSatKit 2.2.1. The EventErrStr buffer has a fixed size of 256 bytes. The code uses sprintf to format two filenames (Source1Filename and the string returned by FileUtil_FileStateStr) into this buffer without any length checking and without using bounded format specifiers such as %.*s. If the filename length approaches OS_MAX_PATH_LEN (commonly 64-256 bytes), the combined formatted string together with constant text can exceed 256 bytes, resulting in a stack buffer overflow. Such unsafe sprintf calls are scattered across multiple functions in file.c, including FILE_ConcatenateCmd() and ConcatenateFiles(), all of which fail to validate the output length.

AI Analysis

Stack buffer overflow vulnerability due to unsafe sprintf calls in file.c

Basic Information

ID CVE-2025-70085

Source mitre

Published Feb 11, 2026 at 00:00

Modified Feb 12, 2026 at 15:02

Affected Product

Vendor OpenSatKit

Product OpenSatKit

Version 2.2.1

Affected Versions n/a n/a n/a

CWE Classification

CWE-121

AI Assessment

AI Score 9.8 / 10

AI Severity Critical

Vendor OpenSatKit

Product OpenSatKit

Version 2.2.1

References

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    "published": "2026-02-11T00:00:00.000Z",
    "modified": "2026-02-12T15:02:00.414Z",
    "type": "cve",
    "title": "CVE-2025-70085",
    "source": "mitre",
    "references": "https://github.com/OpenSatKit/OpenSatKit\nhttps://github.com/OpenSatKit/OpenSatKit/releases/tag/v2.2.1\nhttps://raw.githubusercontent.com/OpenSatKit/OpenSatKit/master/cfs/apps/filemgr/fsw/src/file.c\nhttps://gist.github.com/jonafk555",
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        "version": "3.1"
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