CVE-2026-80186

HIGHPre-NVD 7.67.6—
EchelonGraph scoreHIGH confidence

Score 7.6 from GitHub Security Advisory (severity: HIGH) published 2026-08-26. a secondary CVSS source baseline 7.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.6Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A stack-based buffer overflow vulnerability exists in BlueZ, the Linux Bluetooth protocol stack. A remote user within Bluetooth radio range can send a specially crafted Extended Inquiry Response (EIR) packet that causes a buffer overflow when the target device performs Bluetooth discovery. This vulnerability can lead to a Denial of Service (DoS) by crashing the bluetoothd service and may allow for arbitrary code execution.

CVSS v3
7.6
EG Score
7.6(high)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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 computed
Severity76% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 28, 2026

Advisory Details (3)

Auto-updated Aug 25, 2026
🔬 Proof of concept available. Patch available. Sources: redhat, github.
github Patch Available🟡 PoC Available

Stack Overflow in name2utf8 causes DoS and potential code execution · Advisory · bluez/bluez · GitHub

https://github.com/bluez/bluez/security/advisories/GHSA-68h6-5qgp-3975
redhat

2524132 – (CVE-2026-80186) CVE-2026-80186 bluez: Stack Overflow in name2utf8 causes DoS and potential code execution

https://bugzilla.redhat.com/show_bug.cgi?id=2524132
redhat Patch Available

CVE-2026-80186 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-80186

Vendor Advisories for CVE-2026-80186(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 22× in last 7d / 22× 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.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 20:16 UTCGHSA enrichment
  3. 2026-08-29 08:52 UTCEG score recompute
  4. 2026-08-29 08:52 UTCGHSA enrichment
  5. 2026-08-28 21:42 UTCEPSS rescore
  6. 2026-08-28 21:24 UTCGHSA enrichment
  7. 2026-08-28 16:22 UTCGHSA enrichment
  8. 2026-08-28 04:56 UTCGHSA enrichment
  9. 2026-08-27 17:32 UTCEG score recompute
  10. 2026-08-27 17:32 UTCGHSA enrichment
  11. 2026-08-27 17:10 UTCEG score recompute
  12. 2026-08-27 17:09 UTCGHSA enrichment
  13. 2026-08-27 14:25 UTCEPSS rescore
  14. 2026-08-27 08:43 UTCGHSA enrichment
  15. 2026-08-26 21:19 UTCEG score recompute
  16. 2026-08-26 21:18 UTCGHSA enrichment
  17. 2026-08-26 14:47 UTCEPSS rescore
  18. 2026-08-26 09:54 UTCEG score recompute
  19. 2026-08-26 09:54 UTCGHSA enrichment
  20. 2026-08-25 22:29 UTCEG score recompute
  21. 2026-08-25 22:00 UTCEG score recompute
  22. 2026-08-25 21:59 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-80186?
CVE-2026-80186 is a high vulnerability published on August 25, 2026. A stack-based buffer overflow vulnerability exists in BlueZ, the Linux Bluetooth protocol stack. A remote user within Bluetooth radio range can send a specially crafted Extended Inquiry Response (EIR) packet that causes a buffer overflow when the target device performs Bluetooth discovery. This…
When was CVE-2026-80186 disclosed?
CVE-2026-80186 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-80186 actively exploited?
CVE-2026-80186 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 66.4% of all scored CVEs.
What is the CVSS score of CVE-2026-80186?
CVE-2026-80186 has a CVSS v3 base score of 7.6 (NVD).
How do I remediate CVE-2026-80186?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-80186, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-80186

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