How severe is CVE-2023-0776?

CVE-2023-0776 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.

Is CVE-2023-0776 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0776?

CVE-2023-0776 primarily affects Baicells Neutrino 430 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-0776?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-0776 published?

CVE-2023-0776 was published on 2023-02-11 and last updated on 2026-06-17.

CVE-2023-0776

CVE-2023-0776 is a high-severity vulnerability in Baicells Neutrino 430 Firmware with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Baicells Neutrino 430 Firmware
Published: 2023-02-11
Last modified: 2026-06-17

Description

Baicells Nova 436Q, Nova 430E, Nova 430I, and Neutrino 430 LTE TDD eNodeB devices with firmware through QRTB 2.12.7 are vulnerable to remote shell code exploitation via HTTP command injections. Commands are executed using pre-login execution and executed with root permissions. The following methods below have been tested and validated by a 3rd party analyst and has been confirmed exploitable special thanks to Rustam Amin for providing the steps to reproduce.

Frequently asked questions

What is CVE-2023-0776?: Baicells Nova 436Q, Nova 430E, Nova 430I, and Neutrino 430 LTE TDD eNodeB devices with firmware through QRTB 2.12.7 are vulnerable to remote shell code exploitation via HTTP command injections. Commands are executed using pre-login execution and executed with root permissions. The following methods below have been tested and validated by a 3rd party analyst and has been confirmed exploitable special thanks to Rustam Amin for providing the steps to reproduce.
How severe is CVE-2023-0776?: CVE-2023-0776 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.
Is CVE-2023-0776 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0776?: CVE-2023-0776 primarily affects Baicells Neutrino 430 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-0776?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-0776 published?: CVE-2023-0776 was published on 2023-02-11 and last updated on 2026-06-17.

References

https://baicells.com/Service/Firmware

Affected products (4)

cpe:2.3:o:baicells:neutrino_430_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:baicells:nova430l_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:baicells:nova430e_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:baicells:nova436q_firmware:*:*:*:*:*:*:*:*

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