VulnerabilityDeferred
CVE-2026-36176
This allows physically-proximate attackers to extract these active tokens to perform unauthorized operations via monitoring the serial UART interface.
HIGH 7.1EPSS 0.09%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.09%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
- EPSS
- 0.09% probability · 1th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-312
- Source
- cve@mitre.org
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.