PatchTheCVECVE-2023-52951: A cleartext transmission of sensitive information vulnerability in Synology Note Station Client before 2.2.4-7
CVE-2023-52951 is a medium-severity flaw (CVSS 5.9) affecting note station client. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A cleartext transmission of sensitive information vulnerability in Synology Note Station Client before 2.2.4-703 allows man-in-the-middle attackers to obtain user credential.
Why this priority
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.9 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.1% (top 97%) |
| CISA exploited list | No |
| Weakness | CWE-319 |
| Published | 2026-06-03 |
| Last modified | 2026-07-22 |
Last updated 2026-07-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2023-52951?
note station client: upgrade to 2.2.4-703. Exact commands for each OS are on this page.
Is CVE-2023-52951 being exploited?
CVE-2023-52951 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2023-52951 affect?
CVE-2023-52951 affects note station client. Severity is medium (CVSS 5.9). A cleartext transmission of sensitive information vulnerability in Synology Note Station Client before 2.2.4-703 allows man-in-the-middle attackers to obtain user credential.
How urgent is CVE-2023-52951?
Priority 26/100. Remotely exploitable, no login, no user action