CVE-2026-23282 | Linux Kernel up to 6.18.16/6.19.6/7.0-rc2 SMB Client smb2_unlink privilege escalation

VDB-352999 · CVE-2026-23282 · GCVE-0-2026-23282 LINUX KERNEL UP TO 6.18.16/6.19.6/7.0-RC2 SMB CLIENT SMB2_UNLINK PRIVILEGE ESCALATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.3 $0-$5k 2.64+ Summaryinfo A vulnerability has been found in Linux Kernel up to 6.18.16/6.19.6/7.0-rc2 and classified as critical. This impacts the function smb2_unlink of the component SMB Client. This manipulation causes an unknown weakness. The identification of this vulnerability is CVE-2026-23282. There is no exploit available. The affected component should be upgraded. Detailsinfo A vulnerability classified as critical was found in Linux Kernel up to 6.18.16/6.19.6/7.0-rc2. Affected by this vulnerability is the function smb2_unlink of the component SMB Client. The impact remains unknown. The summary by CVE is: In the Linux kernel, the following vulnerability has been resolved: smb: client: fix oops due to uninitialised var in smb2_unlink() If SMB2_open_init() or SMB2_close_init() fails (e.g. reconnect), the iovs set @rqst will be left uninitialised, hence calling SMB2_open_free(), SMB2_close_free() or smb2_set_related() on them will oops. Fix this by initialising @close_iov and @open_iov before setting them in @rqst. It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2026-23282 since 01/13/2026. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/25/2026). Upgrading to version 6.18.17, 6.19.7 or 7.0-rc3 eliminates this vulnerability. Applying the patch 86163b98891aa9800f6103252e5acc7bb98afb91/dc710c87af3341554d02d634ada1d2036c49a94a/048efe129a297256d3c2088cf8d79515ff5ec864 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 6.18.0 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 6.19.0 6.19.1 6.19.2 6.19.3 6.19.4 6.19.5 6.19.6 7.0-rc1 7.0-rc2 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 6.18.17/6.19.7/7.0-rc3 Patch: 86163b98891aa9800f6103252e5acc7bb98afb91/dc710c87af3341554d02d634ada1d2036c49a94a/048efe129a297256d3c2088cf8d79515ff5ec864 Timelineinfo 01/13/2026 CVE reserved 03/25/2026 +71 days Advisory disclosed 03/25/2026 +0 days VulDB entry created 03/25/2026 +0 days VulDB entry last update Sourcesinfo Vendor: kernel.org Advisory: git.kernel.org Status: Confirmed CVE: CVE-2026-23282 (🔒) GCVE (CVE): GCVE-0-2026-23282 GCVE (VulDB): GCVE-100-352999 Entryinfo Created: 03/25/2026 12:05 Changes: 03/25/2026 12:05 (58) Complete: 🔍 Cache ID: 99:54E:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸