Linux Kernel up to 6.16.3 media vb2_is_busy buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Linux Kernel up to 6.16.3. This issue affects the function vb2_is_busy of the component media. The manipulation results in buffer overflow. This vulnerability is known as CVE-2025-39714. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.16.3. Affected is the function vb2_is_busy of the component media. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: media: usbtv: Lock resolution while streaming When an program is streaming (ffplay) and another program (qv4l2) changes the TV standard from NTSC to PAL, the kernel crashes due to trying to copy to unmapped memory. Changing from NTSC to PAL increases the resolution in the usbtv struct, but the video plane buffer isn't adjusted, so it overflows. [hverkuil: call vb2_is_busy instead of vb2_is_streaming]

The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2025-39714 since 04/16/2025. The exploitability is told to be easy. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/09/2026).

The vulnerability scanner Nessus provides a plugin with the ID 261627 (Linux Distros Unpatched Vulnerability : CVE-2025-39714), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.297, 5.10.241, 5.15.190, 6.1.149, 6.6.103, 6.12.44, 6.16.4 or 6.17-rc1 eliminates this vulnerability. Applying the patch c35e7c7a004ef379a1ae7c7486d4829419acad1d/ee7bade8b9244834229b12b6e1e724939bedd484/5427dda195d6baf23028196fd55a0c90f66ffa61/ef9b3c22405192afaa279077ddd45a51db90b83d/3d83d0b5ae5045a7a246ed116b5f6c688a12f9e9/c3d75524e10021aa5c223d94da4996640aed46c0/9f886d21e235c4bd038cb20f6696084304197ab3/7e40e0bb778907b2441bff68d73c3eb6b6cd319f 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 databases at Tenable (261627), EUVD (EUVD-2025-31513) and CERT Bund (WID-SEC-2025-1988). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Debian Linux
  • Google Cloud Platform
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • NetApp FAS
  • NetApp AFF
  • NetApp ActiveIQ Unified Manager
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • Microsoft Azure
  • Dell Secure Connect Gateway
  • IBM QRadar SIEM
  • IBM Security Verify Access
  • Dell NetWorker

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.6

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 261627
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-39714

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.4.297/5.10.241/5.15.190/6.1.149/6.6.103/6.12.44/6.16.4/6.17-rc1
Patch: c35e7c7a004ef379a1ae7c7486d4829419acad1d/ee7bade8b9244834229b12b6e1e724939bedd484/5427dda195d6baf23028196fd55a0c90f66ffa61/ef9b3c22405192afaa279077ddd45a51db90b83d/3d83d0b5ae5045a7a246ed116b5f6c688a12f9e9/c3d75524e10021aa5c223d94da4996640aed46c0/9f886d21e235c4bd038cb20f6696084304197ab3/7e40e0bb778907b2441bff68d73c3eb6b6cd319f

Timelineinfo

04/16/2025 CVE reserved
09/05/2025 +142 days Advisory disclosed
09/05/2025 +0 days VulDB entry created
02/09/2026 +157 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-39714 (🔒)
GCVE (CVE): GCVE-0-2025-39714
GCVE (VulDB): GCVE-100-322920
EUVD: 🔒
CERT Bund: WID-SEC-2025-1988 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 09/05/2025 21:59
Updated: 02/09/2026 19:21
Changes: 09/05/2025 21:59 (59), 09/07/2025 06:04 (2), 11/07/2025 02:47 (7), 11/27/2025 21:54 (1), 01/03/2026 15:02 (1), 01/12/2026 18:17 (11), 01/13/2026 22:02 (1), 01/20/2026 10:08 (1), 02/09/2026 19:21 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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