CVE-2026-0826
📛 CVE Title
HP Polycom: CVE-2026-0826: UC Software Stack-Based Buffer Overflow Vulnerability
Description
A critical unauthenticated stack-based buffer overflow vulnerability exists within the core session-handling binary (polyapp) of HP Poly UC Software. The flaw allows a remote, unauthenticated attacker to overflow an internal memory stack buffer by transmitting a specially crafted packet to the device over the network. Successful exploitation grants the attacker full arbitrary code execution with root administrative privileges on the underlying operating system pipeline of the physical asset.
Description (MITRE) cveawg.mitre.org
Pulled from cveawg.mitre.org/api/cve/CVE-2026-0826 on 2026-07-02. Shown when MITRE's text differs from the cvelistV5 mirror.
In certain scenarios when the admin has enabled Interactive Connectivity Establishment (ICE), a buffer overflow could enable remote code execution on Poly Voice products on the Linux platform.
Overview
- State
- —
- Assigner (CNA)
- —
- CVSS severity
- MEDIUM
- CVSS score
- 5.0 / 10
- CVSS vector
AV:N/AC:L/Au:N/C:C/I:C/A:C- Effective score
- 5.0 / 10 MEDIUM source: CNA overview
- CWE(s)
- —
- Reserved
- —
- Published
- 2026-06-02 00:00 UTC
- Last updated
- —
- Source
- https://www.rapid7.com/db/vulnerabilities/hp-poly-cve-2026-0826/
- Linked Threat
- CVE-2026-0826 — CVE-2026-0826
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-06-01 15:16:29 UTC
- NVD last modified
- 2026-06-17 10:11:27 UTC
- EPSS score
- 0.2647 (probability of exploitation in next 30 days)
- EPSS percentile
- 97.76% vs all CVEs — higher = more likely to be exploited, as of 2026-07-01
NVD-assigned CWE(s):
CWE-121
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-07-02 08:52 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-33658 - Assigner
- hp
- Published
- Jun 1, 2026, 2:55:00 PM
- Updated
- Jun 1, 2026, 3:32:48 PM
- EUVD base score (CVSS 4.0)
-
9.2 / 10
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - EUVD-reported EPSS
- 26.4700
- Vendors
- HP Inc.
- Products
-
poly_trio_8300 (0 <8.1.7)poly_trio_8800 (0 <7.2.8)poly_trio_8500 (0 <7.2.8)
- Aliases
-
GHSA-7v6x-2q5v-c59f
ENISA description: In certain scenarios when the admin has enabled Interactive Connectivity Establishment (ICE), a buffer overflow could enable remote code execution on Poly Voice products on the Linux platform.
EUVD references (1)
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
Web references (8)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://www.securityweek.com/critical-vulnerability-in-hp-voip-phones-enables-enterprise-network-breaches/ tenable:www.securityweek.com
- https://securityaffairs.com/193045/security/why-an-hp-poly-voip-phones-bug-could-become-an-enterprise-foothold.html tenable:securityaffairs.com
- https://support.hp.com/us-en/document/ish_15052661-15052687-16/hpsbpy04083 tenable:support.hp.com
- https://www.first.org/epss/ tenable:www.first.org
- https://nvd.nist.gov/vuln/detail/CVE-2026-0826 tenable:nvd.nist.gov
- https://attackerkb.com/topics/CVE-2026-0826 rapid7:attackerkb.com
- http://cwe.mitre.org/data/definitions/121.html rapid7:cwe.mitre.org
- https://www.cve.org/CVERecord?id=CVE-2026-0826 rapid7:www.cve.org
NVD-tagged references (1)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://support.hp.com/us-en/document/ish_15052661-15052687-16/hpsbpy04083 hp-security-alert@hp.com
Remediations (11)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
rapid7
hp-poly-mitigation-cve-2026-0826
2026-06-04 09:00 UTC -
web:blogs.oracle.com
For more information about the Critical Security Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.
2026-06-19 02:31 UTC -
web:cybersecuritynews.com
Microsoft has officially acknowledged a critical zero-day vulnerability in Microsoft Defender, publicly dubbed "RoguePlanet," and confirmed it is actively developing a security patch to address the flaw.
2026-06-19 02:31 UTC -
web:msrc.microsoft.com
Security Update Guide - Microsoft Security Response Center
2026-06-19 02:31 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-06-19 02:31 UTC -
web:support.sap.com
SAP security Patch Day Bulletin
2026-06-19 02:31 UTC -
web:thehackernews.com
Microsoft patches 59 vulnerabilities, including six actively exploited zero-days, with CISA mandating urgent federal remediation .
2026-06-19 02:31 UTC -
web:www.crowdstrike.com
Microsoft has released security updates for 130 vulnerabilities, including 30 critical, in its May 2026 Patch Tuesday rollout.
2026-06-19 02:31 UTC -
web:www.malwarebytes.com
Microsoft says it's working on a fix for an unpatched Defender vulnerability that can give attackers the highest level of access on Windows.
2026-06-19 02:31 UTC -
web:www.oracle.com
This Critical Security Patch Update contains 35 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Security Patch Update and other Oracle Software Security Assurance activities is located at May 2026 Critical Security Patch Update: Executive Summary and Analysis.
2026-06-19 02:31 UTC -
web:zecurit.com
Get the complete breakdown of Microsoft's June 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-06-19 02:31 UTC
AI Forensic Analysis
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