CVE-2025-28343Network attack vector

Unspecified impact via undersized button-thread stack

Published May 13, 2026 · Updated May 13, 2026

Stack-based buffer overflow in ThreadReadButtons in Striso control firmware commit 54c9722 allows attackers to cause unspecified impact. The thread reserves a 128-byte ChibiOS working area, while static stack-usage analysis totals 248 bytes across the measured call chain. The public issue demonstrates the size mismatch during a local instrumented build, but it does not identify an external trigger or establish whether runtime failure causes a crash, hang, reboot, or other consequence.

CVSS severity7.5
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Stack-based buffer overflow in ThreadReadButtons in Striso control firmware commit 54c9722 allows attackers to cause unspecified impact. The thread reserves a 128-byte ChibiOS working area, while static stack-usage analysis totals 248 bytes across the measured call chain. The public issue demonstrates the size mismatch during a local instrumented build, but it does not identify an external trigger or establish whether runtime failure causes a crash, hang, reboot, or other consequence.

The record

CVE
CVE-2025-28343
Published
May 13, 2026
Updated
May 13, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 13, 2026CVE publishedPublication date reported by the CVE source.
  2. May 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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