VDB-225887 · CVE-2023-27748 · EUVD-2023-31484

BlackVue DR750-2CH LTE 1.012_2022.10.26 Firmware signature verification

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.2	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in BlackVue DR750-2CH LTE 1.012_2022.10.26. This affects an unknown part of the component Firmware Handler. The manipulation leads to signature verification. This vulnerability is uniquely identified as CVE-2023-27748. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in BlackVue DR750-2CH LTE 1.012_2022.10.26 and classified as critical. This issue affects an unknown code of the component Firmware Handler. The manipulation with an unknown input leads to a signature verification vulnerability. Using CWE to declare the problem leads to CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

BlackVue DR750-2CH LTE v.1.012_2022.10.26 does not employ authenticity check for uploaded firmware. This can allow attackers to upload crafted firmware which contains backdoors and enables arbitrary code execution.

The weakness was disclosed 04/14/2023. The identification of this vulnerability is CVE-2023-27748 since 03/05/2023. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-31484). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

BlackVue

Name

DR750-2CH LTE

Version

1.012_2022.10.26

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 8.2

VulDB Base Score: 6.7
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/05/2023 🔍
04/14/2023 +39 days 🔍
04/14/2023 +0 days 🔍
11/22/2025 +953 days 🔍

Sourcesinfo

Advisory: blackvue.com
Status: Not defined

CVE: CVE-2023-27748 (🔍)
GCVE (CVE): GCVE-0-2023-27748
GCVE (VulDB): GCVE-100-225887
EUVD: 🔍

Entryinfo

Created: 04/14/2023 07:49
Updated: 11/22/2025 22:14
Changes: 04/14/2023 07:49 (37), 04/30/2023 14:36 (1), 02/08/2025 04:59 (26), 11/22/2025 22:14 (1)
Complete: 🔍
Cache ID: 216::103