Linux Kernel up to 6.6.119/6.12.63/6.18.2/6.19-rc1 privilege escalation

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.
6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.6.119/6.12.63/6.18.2/6.19-rc1 and classified as critical. Affected by this issue is some unknown functionality. The manipulation results in an unknown weakness. This vulnerability is known as CVE-2025-71122. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.6.119/6.12.63/6.18.2/6.19-rc1. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: iommufd/selftest: Check for overflow in IOMMU_TEST_OP_ADD_RESERVED syzkaller found it could overflow math in the test infrastructure and cause a WARN_ON by corrupting the reserved interval tree. This only effects test kernels with CONFIG_IOMMUFD_TEST. Validate the user input length in the test ioctl.

The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2025-71122 since 01/13/2026. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/25/2026).

The vulnerability scanner Nessus provides a plugin with the ID 284716 (Linux Distros Unpatched Vulnerability : CVE-2025-71122), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.6.120, 6.12.64, 6.18.3 or 6.19-rc2 eliminates this vulnerability. Applying the patch 4cc829d61f10c20523fd4085c1546e741a792a97/e6c122cffcbb2e84d321ec8ba0e38ce8e7c10925/b166b8e0a381429fefd9180e67fbc834b3cee82f/e6a973af11135439de32ece3b9cbe3bfc043bea8 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 (284716) and CERT Bund (WID-SEC-2026-0119). Once again VulDB remains the best source for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

CVSSv2info

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

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

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
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: 284716
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-71122

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.6.120/6.12.64/6.18.3/6.19-rc2
Patch: 4cc829d61f10c20523fd4085c1546e741a792a97/e6c122cffcbb2e84d321ec8ba0e38ce8e7c10925/b166b8e0a381429fefd9180e67fbc834b3cee82f/e6a973af11135439de32ece3b9cbe3bfc043bea8

Timelineinfo

01/13/2026 CVE reserved
01/14/2026 +1 days Advisory disclosed
01/14/2026 +0 days VulDB entry created
03/25/2026 +70 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-71122 (🔒)
GCVE (CVE): GCVE-0-2025-71122
GCVE (VulDB): GCVE-100-341100
CERT Bund: WID-SEC-2026-0119 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 01/14/2026 17:53
Updated: 03/25/2026 22:03
Changes: 01/14/2026 17:53 (56), 01/16/2026 05:17 (7), 01/16/2026 08:26 (2), 03/09/2026 05:29 (1), 03/25/2026 22:03 (11)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!