CVE-2026-81007: linux
Vulnerability summary
CVE-2026-81007 is a high (CVSS 7.1) vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 11-09-2026PublishedVulnerability first disclosed.
- 19-10-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- NVDNIST7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS trend
Probability
0.13%
Chance of exploitation in the next 30 days
Percentile
2%
Versus all other CVEs
30-day change
0.00 pp
From 0.13% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu165 products
- linuxAll versions (No fix recorded)
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded)
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.111-1 | < 7.2.6-1
- linux-6.12< 6.12.111-1~deb12u1
Linux1 product
- linux≥ 51bd6f291583684f495ea498984dfc22049d7fd2, < 8990c7f6bfc1e7689b7012a7d4d0efb9f07a9c89 | ≥ 51bd6f291583684f495ea498984dfc22049d7fd2, < 94f8d20153e348c79bc14dc25f873470518892da | ≥ 51bd6f291583684f495ea498984dfc22049d7fd2, < e527cd4e80066e1ed070fdc7c705bde340cdcc62 | ≥ 51bd6f291583684f495ea498984dfc22049d7fd2, < 7d66d54b974cff0a959e188af844d2d110422767 | ≥ 51bd6f291583684f495ea498984dfc22049d7fd2, < 60939bcda6f3f104ef456fdbf3cc5733c0720fb1 | ≥ 51bd6f291583684f495ea498984dfc22049d7fd2, < 5719431ca2b5fa26560bb38f6202f8b97fa3bbb0 | ≥ 51bd6f291583684f495ea498984dfc22049d7fd2, < a84c6e3d188f2c6e674910929eb790634299d6d5 | ≥ 51bd6f291583684f495ea498984dfc22049d7fd2, < 53637506884dbd5c91a89b1a3547d99d80f8ed2c | 5.3
3 vendors · 168 products