Linux Kernel up to 6.6.121/6.12.66/6.18.6/6.19-rc5 panel-simple devm_drm_panel_bridge_add privilege escalation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.6.121/6.12.66/6.18.6/6.19-rc5. Affected by this issue is the function devm_drm_panel_bridge_add of the component panel-simple. Executing a manipulation can lead to an unknown weakness. This vulnerability is registered as CVE-2026-23049. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.6.121/6.12.66/6.18.6/6.19-rc5 and classified as critical. This vulnerability affects the function devm_drm_panel_bridge_add of the component panel-simple. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: drm/panel-simple: fix connector type for DataImage SCF0700C48GGU18 panel The connector type for the DataImage SCF0700C48GGU18 panel is missing and devm_drm_panel_bridge_add() requires connector type to be set. This leads to a warning and a backtrace in the kernel log and panel does not work: " WARNING: CPU: 3 PID: 38 at drivers/gpu/drm/bridge/panel.c:379 devm_drm_of_get_bridge+0xac/0xb8 " The warning is triggered by a check for valid connector type in devm_drm_panel_bridge_add(). If there is no valid connector type set for a panel, the warning is printed and panel is not added. Fill in the missing connector type to fix the warning and make the panel operational once again.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2026-23049 since 01/13/2026. The exploitation appears to be difficult. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/30/2026).

The vulnerability scanner Nessus provides a plugin with the ID 297901 (Linux Distros Unpatched Vulnerability : CVE-2026-23049), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.6.122, 6.12.67, 6.18.7 or 6.19-rc6 eliminates this vulnerability. Applying the patch bc0b17bdba3838e9e17e7e9adc968384ac99938b/04218cd68d1502000823c8288f37b4f171dcdcae/f7940d3ec1dc6bf719eddc69d4b8e52cc2201896/6ab3d4353bf75005eaa375677c9fed31148154d6 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 (297901) and CERT Bund (WID-SEC-2026-0324). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Debian Linux
  • Google Cloud Platform
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • RESF Rocky Linux
  • 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: 4.6
VulDB Meta Temp Score: 4.4

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
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: Privilege escalation
CWE: Unknown
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: 297901
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-23049

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.6.122/6.12.67/6.18.7/6.19-rc6
Patch: bc0b17bdba3838e9e17e7e9adc968384ac99938b/04218cd68d1502000823c8288f37b4f171dcdcae/f7940d3ec1dc6bf719eddc69d4b8e52cc2201896/6ab3d4353bf75005eaa375677c9fed31148154d6

Timelineinfo

01/13/2026 CVE reserved
02/04/2026 +22 days Advisory disclosed
02/04/2026 +0 days VulDB entry created
04/30/2026 +85 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-23049 (🔒)
GCVE (CVE): GCVE-0-2026-23049
GCVE (VulDB): GCVE-100-344290
CERT Bund: WID-SEC-2026-0324 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 02/04/2026 18:02
Updated: 04/30/2026 04:08
Changes: 02/04/2026 18:02 (58), 02/06/2026 04:55 (7), 02/07/2026 12:13 (2), 04/30/2026 04:08 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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