CVE-2025-68819
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-13

Last updated on: 2026-01-19

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb: dtv5100: fix out-of-bounds in dtv5100_i2c_msg() rlen value is a user-controlled value, but dtv5100_i2c_msg() does not check the size of the rlen value. Therefore, if it is set to a value larger than sizeof(st->data), an out-of-bounds vuln occurs for st->data. Therefore, we need to add proper range checking to prevent this vuln.
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Meta Information
Published
2026-01-13
Last Modified
2026-01-19
Generated
2026-06-16
AI Q&A
2026-01-14
EPSS Evaluated
2026-06-15
NVD
CVE-2025-68819
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux_kernel dvb-usb *-*
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Exploitability
CWE
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability occurs in the Linux kernel's media dvb-usb dtv5100 driver, specifically in the dtv5100_i2c_msg() function. The issue is that the rlen value, which is controlled by the user, is not properly checked for size limits. If rlen is set larger than the size of the data buffer (st->data), it causes an out-of-bounds memory access, which is a security flaw.

Impact Analysis

The vulnerability can lead to out-of-bounds memory access, which may cause system instability, crashes, or potentially allow an attacker to execute arbitrary code or escalate privileges on the affected system.

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