CVE-2026-81007
ipmi: ipmb: validate write message length
CVSS Score
7.1
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: ipmi: ipmb: validate write message length ipmb_write() read message fields before validating the length byte. A zero or short write can read uninitialized stack bytes. A length smaller than the SMBus header underflows the block write length. Require a non-empty buffer and the minimum IPMB request length. Also require the length byte plus payload before parsing the message.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 11, 2026 |
| Last Updated | Sep 14, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new high vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
51bd6f291583684f495ea498984dfc22049d7fd2 < 8990c7f6bfc1e7689b7012a7d4d0efb9f07a9c89 51bd6f291583684f495ea498984dfc22049d7fd2 < 94f8d20153e348c79bc14dc25f873470518892da 51bd6f291583684f495ea498984dfc22049d7fd2 < e527cd4e80066e1ed070fdc7c705bde340cdcc62 51bd6f291583684f495ea498984dfc22049d7fd2 < 7d66d54b974cff0a959e188af844d2d110422767 51bd6f291583684f495ea498984dfc22049d7fd2 < 60939bcda6f3f104ef456fdbf3cc5733c0720fb1 51bd6f291583684f495ea498984dfc22049d7fd2 < 5719431ca2b5fa26560bb38f6202f8b97fa3bbb0 51bd6f291583684f495ea498984dfc22049d7fd2 < a84c6e3d188f2c6e674910929eb790634299d6d5 51bd6f291583684f495ea498984dfc22049d7fd2 < 53637506884dbd5c91a89b1a3547d99d80f8ed2c
Linux / Linux
5.3
References
git.kernel.org: https://git.kernel.org/stable/c/8990c7f6bfc1e7689b7012a7d4d0efb9f07a9c89 git.kernel.org: https://git.kernel.org/stable/c/94f8d20153e348c79bc14dc25f873470518892da git.kernel.org: https://git.kernel.org/stable/c/e527cd4e80066e1ed070fdc7c705bde340cdcc62 git.kernel.org: https://git.kernel.org/stable/c/7d66d54b974cff0a959e188af844d2d110422767 git.kernel.org: https://git.kernel.org/stable/c/60939bcda6f3f104ef456fdbf3cc5733c0720fb1 git.kernel.org: https://git.kernel.org/stable/c/5719431ca2b5fa26560bb38f6202f8b97fa3bbb0 git.kernel.org: https://git.kernel.org/stable/c/a84c6e3d188f2c6e674910929eb790634299d6d5 git.kernel.org: https://git.kernel.org/stable/c/53637506884dbd5c91a89b1a3547d99d80f8ed2c