CVE-2026-27441
CVE-2026-27441 is a critical-severity vulnerability in Seppmail with a CVSS 3.x base score of 9.8. 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-78.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v4: 9.5
- EPSS exploit prediction: 0% (23rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-9377
- Weakness: CWE-78
- Affected product: Seppmail
- Published:
- Last modified:
Description
SEPPmail Secure Email Gateway before version 15.0.1 insufficiently neutralizes the PDF encryption password, allowing OS command execution.
Frequently asked questions
- What is CVE-2026-27441?
- SEPPmail Secure Email Gateway before version 15.0.1 insufficiently neutralizes the PDF encryption password, allowing OS command execution.
- How severe is CVE-2026-27441?
- CVE-2026-27441 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-27441 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-27441?
- CVE-2026-27441 affects Seppmail. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-27441?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2026-27441 have an EU (EUVD) identifier?
- Yes. CVE-2026-27441 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9377.
- When was CVE-2026-27441 published?
- CVE-2026-27441 was published on 2026-03-04 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:seppmail:seppmail:*:*:*:*:*:*:*:*
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