{"id":"CVE-2026-97565","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: reject short READ responses in CIFSSMBRead()\n\nCIFSSMBRead() reads DataLengthHigh, DataLength and DataOffset out of\nthe READ_RSP returned by the server with…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: reject short READ responses in CIFSSMBRead()\n\nCIFSSMBRead() reads DataLengthHigh, DataLength and DataOffset out of\nthe READ_RSP returned by the server with…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0f1f77b821506a4dacab6ce7d29cf9e0c26f14cd","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < aaa221c1b1d288845b55e9c366e5ef608dfff49d","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e6142a8bfc230c7263eb8b0475249c958ce49367","Linux 2.6.12"],"published":"2026-09-25","updated":"2026-09-25","sourceUpdated":"2026-09-25T11:17:07.127","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97565","references":[{"url":"https://git.kernel.org/stable/c/0f1f77b821506a4dacab6ce7d29cf9e0c26f14cd","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/aaa221c1b1d288845b55e9c366e5ef608dfff49d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e6142a8bfc230c7263eb8b0475249c958ce49367","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97565.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-97565"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541286"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97565"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97565"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97565.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-25T11:06:38.913Z","epss":0.00198,"epssPercentile":0.09464,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-125"],"slug":"CVE-2026-97565","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: reject short READ responses in CIFSSMBRead()\n\nCIFSSMBRead() reads DataLengthHigh, DataLength and DataOffset out of\nthe READ_RSP returned by the server without first checking that a\nwhole READ_RSP was actually received. The length of the response is\nrecorded in rsp_iov.iov_len, but nothing constrains it to be at least\nread_rsp_size before those fields are dereferenced.\n\nA malicious or compromised SMB1 server can return a response shorter\nthan the READ_RSP header, so that parsing the header itself reads past\nthe end of the receive buffer. SMB1 is not negotiated by default;\nreaching this code requires an explicit vers=1.0 mount.\n\nReject the response unless it is at least read_rsp_size bytes long.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97565.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":212335,"id":"CVE-2026-97565","ts":1790668152912,"field":"cvss","old":null,"new":"5.5"},{"seq":212334,"id":"CVE-2026-97565","ts":1790668152912,"field":"severity","old":"none","new":"medium"}]}