bacnet_stack 1.3.1 contains an Out-of-bounds Read in bacnet_tag_number_decode which allows attackers to cause a denial of service.
CVE-2026-38570
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-04. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 49(Track)EG Risk 49/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation0% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 20%
- KEV
- Not listed
Published
June 4, 2026
Last Modified
July 22, 2026
Advisory Details (2)
Auto-updated Jun 11, 2026BACnet Stack 1.3.1 OOB read in bacapp_decode_application_data via HostNPort decoding · Issue #1270 · bacnet-stack/bacnet-stack · GitHub
https://github.com/bacnet-stack/bacnet-stack/issues/1270GitHub - bacnet-stack/bacnet-stack: BACnet Protocol Stack library provides a BACnet application layer, network layer and media access (MAC) layer communications services. · GitHub
https://github.com/bacnet-stack/bacnet-stackVendor Advisories for CVE-2026-38570(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 37× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 225 total refreshes for this CVE.
- 2026-09-16 05:15 UTCEPSS rescore
- 2026-09-15 03:11 UTCEPSS rescore
- 2026-09-14 05:28 UTCEG score recompute
- 2026-09-14 05:28 UTCGHSA enrichment
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- 2026-08-25 03:35 UTCEG score recompute
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- 2026-08-23 12:45 UTCGHSA enrichment
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- 2026-08-13 02:47 UTCGHSA enrichment
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- 2026-08-12 00:40 UTCEG score recompute
- 2026-08-12 00:40 UTCGHSA enrichment
- 2026-08-11 13:43 UTCEPSS rescore
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- 2026-08-11 11:38 UTCGHSA enrichment
- 2026-08-11 00:00 UTCEPSS rescore
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- 2026-08-09 17:06 UTCEG score recompute
- 2026-08-09 17:06 UTCGHSA enrichment
- 2026-08-09 13:46 UTCEPSS rescore
- 2026-08-09 04:04 UTCEG score recompute
- 2026-08-09 04:04 UTCGHSA enrichment
- 2026-08-08 16:37 UTCEPSS rescore
- 2026-08-08 15:02 UTCGHSA enrichment
- 2026-08-08 01:49 UTCEG score recompute
- 2026-08-08 01:49 UTCGHSA enrichment
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- 2026-08-06 23:46 UTCGHSA enrichment
- 2026-08-06 13:46 UTCEPSS rescore
- 2026-08-06 09:33 UTCGHSA enrichment
- 2026-08-05 20:31 UTCEG score recompute
- 2026-08-05 20:31 UTCGHSA enrichment
- 2026-08-05 19:17 UTCEPSS rescore
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- 2026-08-04 19:16 UTCGHSA enrichment
- 2026-08-04 15:10 UTCEPSS rescore
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- 2026-08-03 18:40 UTCEG score recompute
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- 2026-07-30 16:28 UTCEPSS rescore
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- 2026-07-29 10:14 UTCEG score recompute
Related CVEs(same CWE)
Same CWE
10 shownCWE-125
- CVE-2013-0767EG 10.0EPSS p93HIGH
- CVE-2009-2523EG 10.0EPSS p98HIGH
- CVE-2014-2898EG 9.8CRITICAL
- CVE-2014-2897EG 9.8CRITICAL
- CVE-2014-2896EG 9.8CRITICAL
- CVE-1999-0006EG 9.8EPSS p96CRITICAL
- CVE-2014-1522EG 9.3EPSS p92HIGH
- CVE-2013-0779EG 9.3EPSS p92HIGH
- CVE-2013-0778EG 9.3EPSS p90HIGH
- CVE-2012-3995EG 9.3EPSS p92HIGH
Frequently asked(5)
What is CVE-2026-38570?
When was CVE-2026-38570 disclosed?
Is CVE-2026-38570 actively exploited?
What is the CVSS score of CVE-2026-38570?
How do I remediate CVE-2026-38570?
Dependency Blast Radius
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