How severe is CVE-2023-47803?

CVE-2023-47803 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-47803 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-47803?

CVE-2023-47803 primarily affects Synology Bc500 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-47803?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-47803 have an EU (EUVD) identifier?

Yes. CVE-2023-47803 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-51898.

When was CVE-2023-47803 published?

CVE-2023-47803 was published on 2024-06-28 and last updated on 2026-06-17.

CVE-2023-47803

CVE-2023-47803 is a medium-severity vulnerability in Synology Bc500 Firmware with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-51898
Weakness: CWE-22
Affected product: Synology Bc500 Firmware
Published: 2024-06-28
Last modified: 2026-06-17

Description

A vulnerability regarding improper limitation of a pathname to a restricted directory ('Path Traversal') is found in the Language Settings functionality. This allows remote attackers to read specific files containing non-sensitive information via unspecified vectors. The following models with Synology Camera Firmware versions before 1.0.7-0298 may be affected: BC500 and TC500.

Frequently asked questions

What is CVE-2023-47803?: A vulnerability regarding improper limitation of a pathname to a restricted directory ('Path Traversal') is found in the Language Settings functionality. This allows remote attackers to read specific files containing non-sensitive information via unspecified vectors. The following models with Synology Camera Firmware versions before 1.0.7-0298 may be affected: BC500 and TC500.
How severe is CVE-2023-47803?: CVE-2023-47803 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-47803 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-47803?: CVE-2023-47803 primarily affects Synology Bc500 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-47803?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-47803 have an EU (EUVD) identifier?: Yes. CVE-2023-47803 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-51898.
When was CVE-2023-47803 published?: CVE-2023-47803 was published on 2024-06-28 and last updated on 2026-06-17.

References

https://www.synology.com/en-global/security/advisory/Synology_SA_23_15

Affected products (2)

cpe:2.3:o:synology:bc500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:synology:tc500_firmware:*:*:*:*:*:*:*:*

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