Auth bypass in Synology Active Backup For Business Agent

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.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (6.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-52949: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-52949?
CVE-2023-52949 is a medium-severity vulnerability in Synology Active Backup For Business Agent, classified under Missing Authentication for Critical Function. CVSS score: 5.5/10. Published 2024-09-26.
How severe is CVE-2023-52949?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2023-52949 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.