How severe is CVE-2025-62763?

CVE-2025-62763 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-62763 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-62763?

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

Does CVE-2025-62763 have an EU (EUVD) identifier?

Yes. CVE-2025-62763 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35204.

When was CVE-2025-62763 published?

CVE-2025-62763 was published on 2025-10-21 and last updated on 2026-06-17.

CVE-2025-62763

CVE-2025-62763 is a medium-severity vulnerability with a CVSS 3.x base score of 5.0. 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-918.

Key facts

Severity: Medium (CVSS 3.x base score 5.0)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-35204
Weakness: CWE-918
Published: 2025-10-21
Last modified: 2026-06-17

Description

Zimbra Collaboration (ZCS) before 10.1.12 allows SSRF because of the configuration of the chat proxy.

Frequently asked questions

What is CVE-2025-62763?: Zimbra Collaboration (ZCS) before 10.1.12 allows SSRF because of the configuration of the chat proxy.
How severe is CVE-2025-62763?: CVE-2025-62763 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-62763 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-62763?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-62763 have an EU (EUVD) identifier?: Yes. CVE-2025-62763 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35204.
When was CVE-2025-62763 published?: CVE-2025-62763 was published on 2025-10-21 and last updated on 2026-06-17.

References

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