CVE & CISA-KEV Catalog

CVE-2026-36176

HIGH
7.1
CVSS v3
NVD

Description

GNCC GP5 v7.1.76 was discovered to store pre-signed Backblaze B2 upload URLs (PUT requests) in plaintext to the serial console. This allows physically-proximate attackers to extract these active tokens to perform unauthorized operations via monitoring the serial UART interface.

CWE-312

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorPhysical
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityNone

CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Exploit Intelligence

0.10%probability of exploitation in 30 days
1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

References

Other references3
Embed a live status badge for CVE-2026-36176
CVE-2026-36176 severity badge

Markdown

[![CVE-2026-36176](https://tridentstack.com/cve/badge/CVE-2026-36176.svg)](https://tridentstack.com/cve/CVE-2026-36176)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-36176"><img src="https://tridentstack.com/cve/badge/CVE-2026-36176.svg" alt="CVE-2026-36176"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-04.