Linux Kernel up to 6.14.6 UCSI Driver ucsi_displayport_work null pointer dereference

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.5$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 5.15.182/6.1.138/6.6.90/6.12.28/6.14.6 and classified as critical. Affected by this issue is the function ucsi_displayport_work of the component UCSI Driver. Performing a manipulation results in null pointer dereference. This vulnerability is cataloged as CVE-2025-37994. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 5.15.182/6.1.138/6.6.90/6.12.28/6.14.6. This affects the function ucsi_displayport_work of the component UCSI Driver. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: displayport: Fix NULL pointer access This patch ensures that the UCSI driver waits for all pending tasks in the ucsi_displayport_work workqueue to finish executing before proceeding with the partner removal.

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2025-37994 since 04/16/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 242164 (Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2025-20470)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.15.183, 6.1.139, 6.6.91, 6.12.29 or 6.14.7 eliminates this vulnerability. Applying the patch 7804c4d63edfdd5105926cc291e806e8f4ce01b5/076ab0631ed4928905736f1701e25f1e722bc086/14f298c52188c34acde9760bf5abc669c5c36fdb/5ad298d6d4aebe1229adba6427e417e89a5208d8/e9b63faf5c97deb43fc39a52edbc39d626cc14bf/312d79669e71283d05c05cc49a1a31e59e3d9e0e 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 (242164), EUVD (EUVD-2025-16382) and CERT Bund (WID-SEC-2025-1201). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • NetApp AFF
  • RESF Rocky Linux
  • Dell Avamar
  • NetApp FAS
  • Open Source Linux Kernel
  • Dell NetWorker
  • Dell Secure Connect Gateway

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 242164
Nessus Name: Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2025-20470)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.15.183/6.1.139/6.6.91/6.12.29/6.14.7
Patch: 7804c4d63edfdd5105926cc291e806e8f4ce01b5/076ab0631ed4928905736f1701e25f1e722bc086/14f298c52188c34acde9760bf5abc669c5c36fdb/5ad298d6d4aebe1229adba6427e417e89a5208d8/e9b63faf5c97deb43fc39a52edbc39d626cc14bf/312d79669e71283d05c05cc49a1a31e59e3d9e0e

Timelineinfo

04/16/2025 🔍
05/29/2025 +43 days 🔍
05/29/2025 +0 days 🔍
12/16/2025 +201 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-37994 (🔍)
GCVE (CVE): GCVE-0-2025-37994
GCVE (VulDB): GCVE-100-310509
EUVD: 🔍
CERT Bund: WID-SEC-2025-1201 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 05/29/2025 17:13
Updated: 12/16/2025 21:26
Changes: 05/29/2025 17:13 (59), 06/04/2025 16:42 (1), 07/17/2025 15:00 (2), 11/28/2025 17:06 (7), 12/16/2025 21:26 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!