What is CVE-2024-39349?

CVE-2024-39349 is a critical-severity vulnerability in Synology Bc500, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2024-06-28.

How severe is CVE-2024-39349?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2024-39349 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Synology Bc500

CVE-2024-39349

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.

Vulnerability class: Buffer Overflow

EPSS: 0.014 (70.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

security@synology.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2024-39349?: CVE-2024-39349 is a critical-severity vulnerability in Synology Bc500, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2024-06-28.
How severe is CVE-2024-39349?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2024-39349 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.