Linux Kernel up to 6.12.82/6.18.23/6.19.13/7.0.0 Udlfb Driver FBIOPUT_VSCREENINFO divide by zero

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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Linux Kernel up to 6.12.82/6.18.23/6.19.13/7.0.0. Affected is the function FBIOPUT_VSCREENINFO of the component Udlfb Driver. Such manipulation leads to divide by zero. This vulnerability is uniquely identified as CVE-2026-31618. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.12.82/6.18.23/6.19.13/7.0.0 and classified as critical. Affected by this issue is the function FBIOPUT_VSCREENINFO of the component Udlfb Driver. The manipulation with an unknown input leads to a divide by zero vulnerability. Using CWE to declare the problem leads to CWE-369. The product divides a value by zero. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: fbdev: tdfxfb: avoid divide-by-zero on FBIOPUT_VSCREENINFO Much like commit 19f953e74356 ("fbdev: fb_pm2fb: Avoid potential divide by zero error"), we also need to prevent that same crash from happening in the udlfb driver as it uses pixclock directly when dividing, which will crash.

The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2026-31618 since 03/09/2026. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 310279 (Linux Distros Unpatched Vulnerability : CVE-2026-31618), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.12.83, 6.18.24, 6.19.14 or 7.0.1 eliminates this vulnerability. Applying the patch 53cb4e79a07124d2ebe502983c29800104080b47/fc386daa6846551a88d338ba9864fc2812cd9030/6567d3e1aaadfebf44ce7dc9ea2630323cd4c736/63dfb0b4741f46d65b667c4275132b3d1966acc8 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 (310279), EUVD (EUVD-2026-25511) and CERT Bund (WID-SEC-2026-1279). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Red Hat Enterprise Linux
  • Oracle Linux
  • Open Source Linux Kernel

Productinfo

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

Exploitinginfo

Class: Divide by zero
CWE: CWE-369 / CWE-404
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: 310279
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-31618

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.12.83/6.18.24/6.19.14/7.0.1
Patch: 53cb4e79a07124d2ebe502983c29800104080b47/fc386daa6846551a88d338ba9864fc2812cd9030/6567d3e1aaadfebf44ce7dc9ea2630323cd4c736/63dfb0b4741f46d65b667c4275132b3d1966acc8

Timelineinfo

03/09/2026 CVE reserved
04/24/2026 +45 days Advisory disclosed
04/24/2026 +0 days VulDB entry created
06/03/2026 +40 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-31618 (🔒)
GCVE (CVE): GCVE-0-2026-31618
GCVE (VulDB): GCVE-100-359402
EUVD: 🔒
CERT Bund: WID-SEC-2026-1279 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 04/24/2026 17:56
Updated: 06/03/2026 14:21
Changes: 04/24/2026 17:56 (59), 04/26/2026 01:01 (1), 04/27/2026 19:18 (2), 05/26/2026 08:13 (7), 06/03/2026 14:21 (10)
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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