How severe is CVE-2025-2848?

CVE-2025-2848 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-2848 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-2848?

CVE-2025-2848 affects Synology Mail Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-2848?

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

Does CVE-2025-2848 have an EU (EUVD) identifier?

Yes. CVE-2025-2848 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201170.

When was CVE-2025-2848 published?

CVE-2025-2848 was published on 2025-12-04 and last updated on 2026-06-17.

CVE-2025-2848

CVE-2025-2848 is a medium-severity vulnerability in Synology Mail Server with a CVSS 3.x base score of 6.3. 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-862.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-201170
Weakness: CWE-862
Affected product: Synology Mail Server
Published: 2025-12-04
Last modified: 2026-06-17

Description

A vulnerability in Synology Mail Server allows remote authenticated attackers to read and write non-sensitive settings, and disable some non-critical functions.

Frequently asked questions

What is CVE-2025-2848?: A vulnerability in Synology Mail Server allows remote authenticated attackers to read and write non-sensitive settings, and disable some non-critical functions.
How severe is CVE-2025-2848?: CVE-2025-2848 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-2848 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-2848?: CVE-2025-2848 affects Synology Mail Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-2848?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-2848 have an EU (EUVD) identifier?: Yes. CVE-2025-2848 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201170.
When was CVE-2025-2848 published?: CVE-2025-2848 was published on 2025-12-04 and last updated on 2026-06-17.

References

https://www.synology.com/en-global/security/advisory/Synology_SA_25_05

Affected products (1)

cpe:2.3:a:synology:mail_server:*:*:*:*:*:*:*:*

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