CVE-2026-31595 | Linux Kernel up to 6.12.82/6.18.23/6.19.13/7.0.0 PCI epf_ntb_epc_cleanup privilege escalation

VDB-359390 · CVE-2026-31595 · GCVE-0-2026-31595 LINUX KERNEL UP TO 6.12.82/6.18.23/6.19.13/7.0.0 PCI EPF_NTB_EPC_CLEANUP PRIVILEGE ESCALATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.4 $0-$5k 0.57+ Summaryinfo A vulnerability labeled as problematic has been found in Linux Kernel up to 6.12.82/6.18.23/6.19.13/7.0.0. This impacts the function epf_ntb_epc_cleanup of the component PCI. Such manipulation leads to an unknown weakness. This vulnerability is referenced as CVE-2026-31595. No exploit is available. The affected component should be upgraded. Detailsinfo A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 6.12.82/6.18.23/6.19.13/7.0.0. Affected by this issue is the function epf_ntb_epc_cleanup of the component PCI. The impact remains unknown. CVE summarizes: In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup Disable the delayed work before clearing BAR mappings and doorbells to avoid running the handler after resources have been torn down. Unable to handle kernel paging request at virtual address ffff800083f46004 [...] Internal error: Oops: 0000000096000007 [#1] SMP [...] Call trace: epf_ntb_cmd_handler+0x54/0x200 [pci_epf_vntb] (P) process_one_work+0x154/0x3b0 worker_thread+0x2c8/0x400 kthread+0x148/0x210 ret_from_fork+0x10/0x20 The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2026-31595 since 03/09/2026. The exploitation is known 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 04/24/2026). Upgrading to version 6.12.83, 6.18.24, 6.19.14 or 7.0.1 eliminates this vulnerability. Applying the patch 6773cc24c004930903a57761132c1e7728907f8f/9921cce25bfe4021f6e55ca995351eb967165297/5999067140c67530a6cb6f41a8471596e60452cb/fbb6c353fa2fb5f5f990eda034a1074b0356127e 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. Productinfo Type Operating System Vendor Linux Name Kernel Version 6.12.0 6.12.1 6.12.2 6.12.3 6.12.4 6.12.5 6.12.6 6.12.7 6.12.8 6.12.9 6.12.10 6.12.11 6.12.12 6.12.13 6.12.14 6.12.15 6.12.16 6.12.17 6.12.18 6.12.19 6.12.20 6.12.21 6.12.22 6.12.23 6.12.24 6.12.25 6.12.26 6.12.27 6.12.28 6.12.29 6.12.30 6.12.31 6.12.32 6.12.33 6.12.34 6.12.35 6.12.36 6.12.37 6.12.38 6.12.39 6.12.40 6.12.41 6.12.42 6.12.43 6.12.44 6.12.45 6.12.46 6.12.47 6.12.48 6.12.49 6.12.50 6.12.51 6.12.52 6.12.53 6.12.54 6.12.55 6.12.56 6.12.57 6.12.58 6.12.59 6.12.60 6.12.61 6.12.62 6.12.63 6.12.64 6.12.65 6.12.66 6.12.67 6.12.68 6.12.69 6.12.70 6.12.71 6.12.72 6.12.73 6.12.74 6.12.75 6.12.76 6.12.77 6.12.78 6.12.79 6.12.80 6.12.81 6.12.82 6.18.0 6.18.1 6.18.2 6.18.3 6.18.4 6.18.5 6.18.6 6.18.7 6.18.8 6.18.9 6.18.10 6.18.11 6.18.12 6.18.13 6.18.14 6.18.15 6.18.16 6.18.17 6.18.18 6.18.19 6.18.20 6.18.21 6.18.22 6.18.23 6.19.0 6.19.1 6.19.2 6.19.3 6.19.4 6.19.5 6.19.6 6.19.7 6.19.8 6.19.9 6.19.10 6.19.11 6.19.12 6.19.13 7.0 License open-source Website Vendor: https://www.kernel.org/ 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 Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock 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 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock 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: 6773cc24c004930903a57761132c1e7728907f8f/9921cce25bfe4021f6e55ca995351eb967165297/5999067140c67530a6cb6f41a8471596e60452cb/fbb6c353fa2fb5f5f990eda034a1074b0356127e Timelineinfo 03/09/2026 CVE reserved 04/24/2026 +45 days Advisory disclosed 04/24/2026 +0 days VulDB entry created 04/24/2026 +0 days VulDB entry last update Sourcesinfo Vendor: kernel.org Advisory: git.kernel.org Status: Confirmed CVE: CVE-2026-31595 (🔒) GCVE (CVE): GCVE-0-2026-31595 GCVE (VulDB): GCVE-100-359390 Entryinfo Created: 04/24/2026 17:52 Changes: 04/24/2026 17:52 (57) Complete: 🔍 Cache ID: 99:A47:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸