CVE-2026-31410 | Linux Kernel up to 6.12.77/6.18.19/6.19.9/7.0-rc4 ksmbd vfs_statfs privilege escalation (EUVD-2026-19194)

VDB-355496 · CVE-2026-31410 · EUVD-2026-19194 LINUX KERNEL UP TO 6.12.77/6.18.19/6.19.9/7.0-RC4 KSMBD VFS_STATFS PRIVILEGE ESCALATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.3 $0-$5k 1.83 Summaryinfo A vulnerability categorized as critical has been discovered in Linux Kernel up to 6.12.77/6.18.19/6.19.9/7.0-rc4. This impacts the function vfs_statfs of the component ksmbd. Such manipulation leads to an unknown weakness. This vulnerability is documented as CVE-2026-31410. There is not any exploit available. It is advisable to upgrade the affected component. Detailsinfo A vulnerability was found in Linux Kernel up to 6.12.77/6.18.19/6.19.9/7.0-rc4 and classified as critical. Affected by this issue is the function vfs_statfs of the component ksmbd. The impact remains unknown. CVE summarizes: In the Linux kernel, the following vulnerability has been resolved: ksmbd: use volume UUID in FS_OBJECT_ID_INFORMATION Use sb->s_uuid for a proper volume identifier as the primary choice. For filesystems that do not provide a UUID, fall back to stfs.f_fsid obtained from vfs_statfs(). The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2026-31410 since 03/09/2026. The exploitation is known to be easy. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/06/2026). Upgrading to version 6.12.78, 6.18.20, 6.19.10 or 7.0-rc5 eliminates this vulnerability. Applying the patch ce00616bc1df675bfdacc968f2bf7c51f4669227/3d80ebe6d1b7bc9ad20fd9b0c1a0c56d804f8a0a/c283a6ffe6d5d6e5594d991286b9ce15951572e1/3a64125730cabc34fccfbc230c2667c2e14f7308 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 vulnerability database at EUVD (EUVD-2026-19194). 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 6.18.0 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 6.19.0 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 7.0-rc1 7.0-rc2 7.0-rc3 7.0-rc4 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: 5.5 VulDB Meta Temp Score: 5.3 VulDB Base Score: 5.5 VulDB Temp Score: 5.3 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 6.12.78/6.18.20/6.19.10/7.0-rc5 Patch: ce00616bc1df675bfdacc968f2bf7c51f4669227/3d80ebe6d1b7bc9ad20fd9b0c1a0c56d804f8a0a/c283a6ffe6d5d6e5594d991286b9ce15951572e1/3a64125730cabc34fccfbc230c2667c2e14f7308 Timelineinfo 03/09/2026 CVE reserved 04/06/2026 +27 days Advisory disclosed 04/06/2026 +0 days VulDB entry created 04/06/2026 +0 days VulDB entry last update Sourcesinfo Vendor: kernel.org Advisory: git.kernel.org Status: Confirmed CVE: CVE-2026-31410 (🔒) GCVE (CVE): GCVE-0-2026-31410 GCVE (VulDB): GCVE-100-355496 EUVD: 🔒 Entryinfo Created: 04/06/2026 10:20 Updated: 04/06/2026 12:30 Changes: 04/06/2026 10:20 (58), 04/06/2026 12:30 (1) Complete: 🔍 Cache ID: 99:0C3:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸