Unscored severity · published Oct 26, 2026
CVE-2026-99099
x86/CPU/AMD: Fix AMD TLBI Erratum #1718
New
–
CVSS
0.2%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
x86/CPU/AMD: Fix AMD TLBI Erratum #1718
The processor may fail to invalidate a TLB entry while executing an
INVLPGB/TLBSYNC instruction pair.
Detect the erratum and apply a software workaround when a microcode fix
is not present.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Linux
82378c6c2f435dba66145609de16bf44a9de6303 before e3e6779f77ab6f0a1aa80e24868d2d89f31053fe; 82378c6c2f435dba66145609de16bf44a9de6303 before 098d80b04d0fe02889c332d061db968f070b83a6; 82378c6c2f435dba66145609de16bf44a9de6303 before 87db7795cbaaf636ae22ae031f4906db7bb77803; 6.15 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-99099
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-99099
git.kernel.org
https://git.kernel.org/stable/c/098d80b04d0fe02889c332d061db968f070b83a6
git.kernel.org
https://git.kernel.org/stable/c/87db7795cbaaf636ae22ae031f4906db7bb77803
git.kernel.org
https://git.kernel.org/stable/c/e3e6779f77ab6f0a1aa80e24868d2d89f31053fe
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