9.8

CVE-2024-39349: synology bc500_firmware Classic Buffer Overflow

CVSS: 9.8v3.1CriticalAnalyzed
Published 28-06-2024Last modified 02-08-2024
Open JSON

Vulnerability summary

CVE-2024-39349 is a critical (CVSS 9.8) Classic Buffer Overflow vulnerability in synology bc500_firmware. EPSS estimates a 1.44% chance of exploitation in the next 30 days, higher than 72.8% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
1.44%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 28-06-2024
    PublishedVulnerability first disclosed.
  2. 02-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.44%

Chance of exploitation in the next 30 days

Percentile

73%

Versus all other CVEs

30-day change

0.00 pp

From 1.44% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.44%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Synology3 products

1 vendor · 3 products

References

1 links