How severe is CVE-2023-52949?

CVE-2023-52949 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-52949 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-52949?

CVE-2023-52949 affects Synology Active Backup For Business Agent. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-52949?

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

Does CVE-2023-52949 have an EU (EUVD) identifier?

Yes. CVE-2023-52949 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-59633.

When was CVE-2023-52949 published?

CVE-2023-52949 was published on 2024-09-26 and last updated on 2026-06-17.

CVE-2023-52949

CVE-2023-52949 is a medium-severity vulnerability in Synology Active Backup For Business Agent with a CVSS 3.x base score of 5.5. 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-306.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-59633
Weakness: CWE-306
Affected product: Synology Active Backup For Business Agent
Published: 2024-09-26
Last modified: 2026-06-17

Description

Missing authentication for critical function vulnerability in proxy settings functionality in Synology Active Backup for Business Agent before 2.7.0-3221 allows local users to obtain user credential via unspecified vectors.

Frequently asked questions

What is CVE-2023-52949?: Missing authentication for critical function vulnerability in proxy settings functionality in Synology Active Backup for Business Agent before 2.7.0-3221 allows local users to obtain user credential via unspecified vectors.
How severe is CVE-2023-52949?: CVE-2023-52949 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-52949 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-52949?: CVE-2023-52949 affects Synology Active Backup For Business Agent. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-52949?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-52949 have an EU (EUVD) identifier?: Yes. CVE-2023-52949 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-59633.
When was CVE-2023-52949 published?: CVE-2023-52949 was published on 2024-09-26 and last updated on 2026-06-17.

References

https://www.synology.com/en-global/security/advisory/Synology_SA_24_11

Affected products (1)

cpe:2.3:a:synology:active_backup_for_business_agent:*:*:*:*:*:*:*:*

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