CVE-2023-5746
CWE-134Published: October 25, 2023· Updated: Jun 17, 2026
Official Description
A vulnerability regarding use of externally-controlled format string is found in the cgi component. This allows remote attackers to execute arbitrary code via unspecified vectors. The following models with Synology Camera Firmware versions before 1.0.5-0185 may be affected: BC500 and TC500.
Risk Analysis
Synology Camera models BC500 and TC500 are vulnerable to a format string flaw in the CGI component, allowing remote code execution. This critical vulnerability allows unauthenticated attackers to compromise the camera firmware.
No public exploit is known, and the vulnerability is not in the KEV. It is remotely exploitable with low complexity.
Update Synology Camera firmware to version 1.0.5-0185 or later.
Technical Analysis
CVE-2023-5746 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-134)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-5746 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts