HOMEVULNERABILITIESCVE-2026-43206
HIGH

CVE-2026-43206

Published: May 6, 2026· Updated: May 11, 2026

7.8
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:7.0th

Official Description

In the Linux kernel, the following vulnerability has been resolved:

drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()

The kfd_event_page_set() function writes KFD_SIGNAL_EVENT_LIMIT * 8

bytes via memset without checking the buffer size parameter. This allows

unprivileged userspace to trigger an out-of bounds kernel memory write

by passing a small buffer, leading to potential privilege

escalation.

NVD Source

Technical Analysis

CVE-2026-43206 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Linux1 product
linux kernel
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://git.kernel.org/stable/c/3e04bc310d80b46eaf481f1fefcbcb37a187412d
PATCHhttps://git.kernel.org/stable/c/4857c37c7ba9aa38b9a4c694e8bd8d0091c87940
PATCHhttps://git.kernel.org/stable/c/4e72f419e4ed44cb3b60506752d8688c20a60a9b
PATCHhttps://git.kernel.org/stable/c/75fb57efdd7863fffbc39db23e9cad7aafda26ed
PATCHhttps://git.kernel.org/stable/c/8a70a26c9f34baea6c3199a9862ddaff4554a96d
PATCHhttps://git.kernel.org/stable/c/b4034442cb090e4a980bdcc1540948606cbc951b
PATCHhttps://git.kernel.org/stable/c/bfcd6b53e1f4feb182952f4ff9a137c36ceaf20b
PATCHhttps://git.kernel.org/stable/c/de8d7a25cd2eb5875b1d8d4fbc7fe4b4138b781f

All References (8)

→
https://git.kernel.org/stable/c/3e04bc310d80b46eaf481f1fefcbcb37a187412dPatch
→
https://git.kernel.org/stable/c/4857c37c7ba9aa38b9a4c694e8bd8d0091c87940Patch
→
https://git.kernel.org/stable/c/4e72f419e4ed44cb3b60506752d8688c20a60a9bPatch
→
https://git.kernel.org/stable/c/75fb57efdd7863fffbc39db23e9cad7aafda26edPatch
→
https://git.kernel.org/stable/c/8a70a26c9f34baea6c3199a9862ddaff4554a96dPatch
→
https://git.kernel.org/stable/c/b4034442cb090e4a980bdcc1540948606cbc951bPatch
→
https://git.kernel.org/stable/c/bfcd6b53e1f4feb182952f4ff9a137c36ceaf20bPatch
→
https://git.kernel.org/stable/c/de8d7a25cd2eb5875b1d8d4fbc7fe4b4138b781fPatch

Quick Facts

CVE IDCVE-2026-43206
CVSS Score7.8 / 10
SeverityHIGH
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedMay 6, 2026

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-43206 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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