CVE-2025-26842
HIGHCVSS 7.5/10EPSS 0.30%
Last modified
CVE-2025-26842 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in Znuny through 7.1.3. If access to a ticket is not given, the content of S/MIME encrypted e-mail messages is visible to users with access to the CommunicationLog.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
Description
An issue was discovered in Znuny through 7.1.3. If access to a ticket is not given, the content of S/MIME encrypted e-mail messages is visible to users with access to the CommunicationLog.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Znuny | Znuny | <= 7.1.3 |
References
- https://www.znuny.org/en/advisories/zsa-2025-01Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-26842?
An issue was discovered in Znuny through 7.1.3. If access to a ticket is not given, the content of S/MIME encrypted e-mail messages is visible to users with access to the CommunicationLog.
How severe is CVE-2025-26842?
CVE-2025-26842 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.
How do I fix CVE-2025-26842?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
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Are you affected by CVE-2025-26842?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST