CVE-2026-36174
MediumCVSS 4.6Exploitation Probability (EPSS)
Low risk4th percentile - higher than 4% of all known CVEs
Summary
GNCC GP5 v7.1.76 stores sensitive wireless network information in plaintext during routine operations to the serial console, allowing physically-proximate attackers to obtain sensitive information, including network credentials, via monitoring the serial UART interface.
Risk Assessment
Attackers with physical access can intercept network credentials, potentially leading to unauthorized network access.
Recommendation
Update GNCC GP5 firmware to the latest version if available, or secure physical access to the serial console.
Other vulnerabilities in GNCC GP5
See all- CVE-2026-36182Critical
GNCC GP5 v7.1.76 uses a weak hashing algorithm to protect the root password. Attackers can perform a brute-force attack to obtain root credentials and escalate privileges.
- CVE-2026-36180Medium
A lack of runtime integrity in GNCC GP5 v7.1.76 allows physically-proximate attackers to bypass file system read-only protections and modify system files and binaries for the duration of a boot session via a bind-mount attack.
- CVE-2026-36178Medium
The factory reset functionality in GNCC GP5 v7.1.76 fails to clear sensitive cryptographic material in the JFFS2 configuration partition, possibly allowing attackers to recover and obtain sensitive user data.
- CVE-2026-36176High
GNCC GP5 v7.1.76 stores pre-signed Backblaze B2 upload URLs (PUT requests) in plaintext to the serial console. Physically-proximate attackers can extract these active tokens to perform unauthorized operations via monitoring the serial UART interface.
Original NVD description (English source)
GNCC GP5 v7.1.76 was discovered to store sensitive wireless network information in plaintext during routine operations to the serial console. This issue allows physically-proximate attackers to obtain sensitive information, including network credentials, via monitoring the serial UART interface.