Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.2 media dtv5100_i2c_msg rlen out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.2 and classified as critical. Affected is the function dtv5100_i2c_msg of the component media. The manipulation of the argument rlen results in out-of-bounds. This vulnerability is known as CVE-2025-68819. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.2. Affected is the function dtv5100_i2c_msg of the component media. The manipulation of the argument rlen with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. CVE summarizes:

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.

The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2025-68819 since 12/24/2025. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 298680 (Debian dla-4475 : ata-modules-5.10.0-35-armmp-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.160, 6.6.120, 6.12.64, 6.18.3 or 6.19-rc1 eliminates this vulnerability. Applying the patch 61f214a878e96e2a8750bf96a98f78c658dba60c/4a54d8fcb093761e4c56eb211cf4e39bf8401fa1/fe3e129ab49806aaaa3f22067ebc75c2dfbe4658/ac92151ff2494130d9fc686055d6bbb9743a673e/b91e6aafe8d356086cc621bc03e35ba2299e4788 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (298680). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 298680
Nessus Name: Debian dla-4475 : ata-modules-5.10.0-35-armmp-di - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.160/6.6.120/6.12.64/6.18.3/6.19-rc1
Patch: 61f214a878e96e2a8750bf96a98f78c658dba60c/4a54d8fcb093761e4c56eb211cf4e39bf8401fa1/fe3e129ab49806aaaa3f22067ebc75c2dfbe4658/ac92151ff2494130d9fc686055d6bbb9743a673e/b91e6aafe8d356086cc621bc03e35ba2299e4788

Timelineinfo

12/24/2025 CVE reserved
01/13/2026 +20 days Advisory disclosed
01/13/2026 +0 days VulDB entry created
02/16/2026 +34 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-68819 (🔒)
GCVE (CVE): GCVE-0-2025-68819
GCVE (VulDB): GCVE-100-340680

Entryinfo

Created: 01/13/2026 17:51
Updated: 02/16/2026 13:34
Changes: 01/13/2026 17:51 (60), 02/16/2026 13:34 (2)
Complete: 🔍
Cache ID: 216::103

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