CVE-2026-36178
MediumCVSS 4.6Exploitation Probability (EPSS)
Low risk4th percentile - higher than 4% of all known CVEs
Summary
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.
Risk Assessment
An attacker with physical access to the device can recover cryptographic keys and user data, leading to confidentiality breaches.
Recommendation
It is recommended to update the GNCC GP5 firmware to a version that clears cryptographic material during factory reset.
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-2026-36176High
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.
- CVE-2026-36174Medium
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.
Original NVD description (English source)
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.