CVE-2026-0826Poly Trio 8300 Stack Buffer Overflow
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.
Published Jun 1, 2026 · Updated Aug 31, 2026
Key Facts
Patch immediately- CVE-2026-0826 is a critical-severity vulnerability (CVSS 9.2 v4) affecting Poly Trio 8300 (Hp Inc.), Poly Trio 8500 (Hp Inc.), Poly Trio 8800 (Hp Inc.) and 1 more product.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 32% probability of exploitation in the next 30 days.
- Fixed versions are available, including Poly Trio 8300 8.1.7, Poly Trio 8500 7.2.8, Poly Trio 8800 7.2.8.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v4
9.2
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/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
EPSS (30-day exploit likelihood)
32%
Higher than 98.3% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
49/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
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.
Affected Products
8 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Poly Trio 8300Hp Inc. | See advisory | 8.1.7 |
| Poly Trio 8500Hp Inc. | See advisory | 7.2.8 |
| Poly Trio 8800Hp Inc. | See advisory | 7.2.8 |
| Poly VvxHp Inc. | See advisory | 6.4.8 |
Patched Releases
Poly Trio 8300
8.1.7
Poly Trio 8500
7.2.8
Poly Trio 8800
7.2.8
Poly Vvx
6.4.8
Timeline
Publicly disclosed
Jun 1, 2026
Last updated
Aug 31, 2026
Weakness Type
- CWE-121 Stack-based Buffer Overflow
References
FAQ
Common Questions.
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.
Affected: Poly Trio 8300 (Hp Inc.); Poly Trio 8500 (Hp Inc.); Poly Trio 8800 (Hp Inc.), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Poly Trio 8300 8.1.7, Poly Trio 8500 7.2.8, Poly Trio 8800 7.2.8.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2026-0826 On Your Attack Surface?
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