HOMEVULNERABILITIESCVE-2026-43217
MEDIUM

CVE-2026-43217

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

5.5
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:4.1th

Official Description

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

media: iris: gen2: Add sanity check for session stop

In iris_kill_session, inst->state is set to IRIS_INST_ERROR and

session_close is executed, which will kfree(inst_hfi_gen2->packet).

If stop_streaming is called afterward, it will cause a crash.

Add a NULL check for inst_hfi_gen2->packet before sendling STOP packet

to firmware to fix that.

NVD Source

Technical Analysis

CVE-2026-43217 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 availability disruption (denial of service), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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/72846441c5f6396de9face04e77fa3d28e9915b6
PATCHhttps://git.kernel.org/stable/c/75992ba43072674fd4767df62a1fe2048565cc60
PATCHhttps://git.kernel.org/stable/c/9aa8d63d09cfc44d879427cc5ba308012ca4ab8e

All References (3)

→
https://git.kernel.org/stable/c/72846441c5f6396de9face04e77fa3d28e9915b6Patch
→
https://git.kernel.org/stable/c/75992ba43072674fd4767df62a1fe2048565cc60Patch
→
https://git.kernel.org/stable/c/9aa8d63d09cfc44d879427cc5ba308012ca4ab8ePatch

Quick Facts

CVE IDCVE-2026-43217
CVSS Score5.5 / 10
SeverityMEDIUM
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedMay 6, 2026

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-43217 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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