PatchTheCVECVE-2024-39349: A vulnerability regarding buffer copy without checking size of input ('Classic Buffer Overflow') is found in t
CVE-2024-39349 is a critical-severity flaw (CVSS 9.8) affecting bc500 firmware, tc500 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A vulnerability regarding buffer copy without checking size of input ('Classic Buffer Overflow') is found in the libjansson component and it does not affect the upstream library. This allows remote attackers to execute arbitrary code via unspecified vectors. The following models with Synology Camera Firmware versions before 1.0.7-0298 may be affected: BC500 and TC500.
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.4% (top 27%) |
| CISA exploited list | No |
| Weakness | CWE-120 |
| Published | 2024-06-28 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2024-39349?
bc500 firmware: upgrade to 1.0.7-0298; tc500 firmware: upgrade to 1.0.7-0298. Exact commands for each OS are on this page.
Is CVE-2024-39349 being exploited?
CVE-2024-39349 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2024-39349 affect?
CVE-2024-39349 affects bc500 firmware, tc500 firmware. Severity is critical (CVSS 9.8). A vulnerability regarding buffer copy without checking size of input ('Classic Buffer Overflow') is found in the libjansson component and it does not affect the upstream library. This allows remote attackers to execute arbitrary code via un
How urgent is CVE-2024-39349?
Priority 58/100. Critical severity; Remotely exploitable, no login, no user action
Software pages
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