Unauthenticated login-service restart via unchecked buffer copy
Published Jun 4, 2024 · Updated Aug 1, 2025
Classic buffer overflow in the login component of Synology Camera Firmware before 1.1.1-0383 allows remote attackers to restart the service. The login component copies attacker-controlled input into a buffer without checking its size, but Synology has not disclosed the specific field or code path. No authentication or user interaction is required; exploitation can write specific non-sensitive files and briefly interrupt login availability because the service restarts automatically.
Summary
What happened
Classic buffer overflow in the login component of Synology Camera Firmware before 1.1.1-0383 allows remote attackers to restart the service. The login component copies attacker-controlled input into a buffer without checking its size, but Synology has not disclosed the specific field or code path. No authentication or user interaction is required; exploitation can write specific non-sensitive files and briefly interrupt login availability because the service restarts automatically.
The record
- CVE
- CVE-2024-5463
- Published
- Jun 4, 2024
- Updated
- Aug 1, 2025
- Vendor
- Synology
- Product
- BC500
- Classifications
- CWE-120, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 4, 2024CVE publishedPublication date reported by the CVE source.
- Aug 1, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <1.1.1-0383
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo