CVE-2026-99099

HIGH
MEDIUM Priority: 0.01 BB Relevance: 41/100
Published: 2026-10-26 Modified: 2026-10-31 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: High

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.

Affected Software (4)

VendorProductVersion
Linux Linux 82378c6c2f435dba66145609de16bf44a9de6303 < e3e6779f77ab6f0a1aa80e24868d2d89f31053fe
Linux Linux 82378c6c2f435dba66145609de16bf44a9de6303 < 098d80b04d0fe02889c332d061db968f070b83a6
Linux Linux 82378c6c2f435dba66145609de16bf44a9de6303 < 87db7795cbaaf636ae22ae031f4906db7bb77803
Linux Linux 6.15

Bug Bounty Relevance

41 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.13%
Raw Score 0.001270
Percentile 2.4%
Date 2026-11-01

EPSS Trend

2026-11-01
0.00127
2026-10-31
0.00162
2026-10-30
0.00162
2026-10-29
0.00162
2026-10-28
0.00162

Intelligence Sources

mitre ref →
nvd ref →