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Fencer Intel
high 8.7

CVE-2026-104204 json

BACnet Stack: Structured View subordinate-list[0] WriteProperty allows unbounded synchronous resize and remote unauthenticated DoS

published last mo. modified yesterday also EUVD-2026-125698 , GHSA-hg85-pmm3-jfcf

Unreviewed: the maintainers' own advisory

Published by the maintainers on their GitHub repository bacnet-stack/bacnet-stack. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.

cvss
8.7
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

Summary

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to version 1.6.1, there is a server-side denial-of-service issue affecting the Structured View object implementation. This issue has been patched in versions 1.6.1 and 1.7.0.

Patch / fix

Is CVE-2026-104204 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
yesterday

Exploit prediction

0.50% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-14).

Exploits and checks

  • github.com https://github.com/bacnet-stack/bacnet-stack/security/advisories/GHSA-hg85-pmm3-jfcf referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • bacnet-stack bacnet-stack

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

The maintainers of bacnet-stack/bacnet-stack published their own advisory on GitHub. Reviewed sources take precedence over it.