What’s Vulnerable › Vulnerabilities

CVE-2025-68819: media: dvb-usb: dtv5100: fix out-of-bounds in dtv5100_i2c_msg()

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-13 · updated 2026-10-19
• Weakness: CWE-787

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.

Affected products

• Linux kernel: 2.6.28 — fixed in 6.19

How to fix

Upgrade to a fixed version: Linux kernel 6.19. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/4a54d8fcb093761e4c56eb211cf4e39bf8401fa1
• https://git.kernel.org/stable/c/61f214a878e96e2a8750bf96a98f78c658dba60c
• https://git.kernel.org/stable/c/ac92151ff2494130d9fc686055d6bbb9743a673e
• https://git.kernel.org/stable/c/b91e6aafe8d356086cc621bc03e35ba2299e4788
• https://git.kernel.org/stable/c/c2305b4c5fc15e20ac06c35738e0578eb4323750
• https://git.kernel.org/stable/c/c2c293ea7b61f12cdaad1e99a5b4efc58c88960a
• https://git.kernel.org/stable/c/fe3e129ab49806aaaa3f22067ebc75c2dfbe4658

Get alerted when CVE-2025-68819 or the next vulnerability affects your stack