CVE-2023-52442
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate session id and tree id in compound request `smb2_get_msg()` in smb2_get_ksmbd_tcon() and smb2_check_user_session() will always return the first request smb2 header in a…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 29.6%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate session id and tree id in compound request `smb2_get_msg()` in smb2_get_ksmbd_tcon() and smb2_check_user_session() will always return the first request smb2 header in a compound request. if `SMB2_TREE_CONNECT_HE` is the first command in compound request, will return 0, i.e. The tree id check is skipped. This patch use ksmbd_req_buf_next() to get current command in compound.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 29.64% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS 29.6% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://git.kernel.org/stable/c/017d85c94f02090a87f4a473dbe0d6ee0da72693Patch
- https://git.kernel.org/stable/c/3df0411e132ee74a87aa13142dfd2b190275332ePatch
- https://git.kernel.org/stable/c/4c2b350b2e269e3fd17bbfa42de1b42775b777acPatch
- https://git.kernel.org/stable/c/becb5191d1d5fdfca0198a2e37457bbbf4fe266fPatch
- https://git.kernel.org/stable/c/017d85c94f02090a87f4a473dbe0d6ee0da72693Patch
- https://git.kernel.org/stable/c/3df0411e132ee74a87aa13142dfd2b190275332ePatch
- https://git.kernel.org/stable/c/4c2b350b2e269e3fd17bbfa42de1b42775b777acPatch
- https://git.kernel.org/stable/c/becb5191d1d5fdfca0198a2e37457bbbf4fe266fPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.