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CVE-2026-46128— ipmi: Check event message buffer response for bad data

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ipmi事件消息缓冲区响应数据未及时检查，可能导致处理空消息时出现问题。

AI Predicted 5.3 Difficulty: Trivial EPSS 0.13% · P3

Possible ATT&CK Techniques 1 AI

T1205 · Traffic Signaling

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< cf1ef30c42a7079e5bad863cd01c52aa3a17c3ac affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 474e53d4397087913a5b9c9eb90fa068da4808bf affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 01f8387fa5b796f13cf50014c171f6da7abc46ea affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 2418e4b21fb1355504d095da5d5f0a210564a43d affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 7f7ada72c07a83b46045ddfeee526bd9e2e3c8f0 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 42432b579a594b66ac32e5e7b7c26e6bc578ec89 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 24269264c3d59a49eb09b10af2c75b14f2931482 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 36920f30e78e69df01f9691c470b6f3ba8aebf98 affected
… +10 more rows
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I. Basic Information for CVE-2026-46128

Vulnerability Information
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Vulnerability Title
ipmi: Check event message buffer response for bad data
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ipmi: Check event message buffer response for bad data The event message buffer response data size got checked later when processing, but check it right after the response comes back. It appears some BMCs may return an empty message instead of an error when fetching events. There are apparently some new BMCs that make this error, so we need to compensate.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ipmi事件消息缓冲区响应数据未及时检查，可能导致处理空消息时出现问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ cf1ef30c42a7079e5bad863cd01c52aa3a17c3ac -
Linux Linux 2.6.12 -

II. Public POCs for CVE-2026-46128

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III. Intelligence Information for CVE-2026-46128

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Patches & Fixes for CVE-2026-46128 (8)

Same Patch Batch · Linux · 2026-05-28 · 135 CVEs total

CVE-2026-46195 9.8 CRITICAL smb: client: validate dacloffset before building DACL pointers
CVE-2026-46137 9.8 CRITICAL mptcp: pm: ADD_ADDR rtx: fix potential data-race
CVE-2026-46115 9.8 CRITICAL block: add pgmap check to biovec_phys_mergeable
CVE-2026-46135 9.8 CRITICAL nvmet-tcp: fix race between ICReq handling and queue teardown
CVE-2026-46155 9.1 CRITICAL smb/client: fix out-of-bounds read in smb2_compound_op()
CVE-2026-46185 9.1 CRITICAL smb/client: fix out-of-bounds read in symlink_data()
CVE-2026-46119 9.1 CRITICAL libceph: Fix slab-out-of-bounds access in auth message processing
CVE-2026-46152 8.8 HIGH wifi: mac80211: drop stray 'static' from fast-RX rx_result
CVE-2026-46212 8.8 HIGH batman-adv: bla: prevent use-after-free when deleting claims
CVE-2026-46166 8.8 HIGH wifi: mac80211: use safe list iteration in radar detect work
CVE-2026-46174 8.8 HIGH x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
CVE-2026-46113 8.8 HIGH KVM: x86: Fix shadow paging use-after-free due to unexpected GFN
CVE-2026-46125 8.8 HIGH wifi: mac80211: remove station if connection prep fails
CVE-2026-46238 8.8 HIGH batman-adv: stop caching unowned originator pointers in BAT IV
CVE-2026-46198 8.8 HIGH batman-adv: fix integer overflow on buff_pos
CVE-2026-46232 8.1 HIGH HID: playstation: Clamp num_touch_reports
CVE-2026-46138 8.1 HIGH Bluetooth: hci_event: Fix OOB read and infinite loop in hci_le_create_big_complete_evt
CVE-2026-46145 7.8 HIGH RDMA/mana: Validate rx_hash_key_len
CVE-2026-46205 7.8 HIGH staging: media: atomisp: Disallow all private IOCTLs
CVE-2026-46173 7.8 HIGH exit: prevent preemption of oopsing TASK_DEAD task

Showing top 20 of 135 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46128

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