# CVE-2025-59689: Libraesva Email Security Gateway Command Injection Vulnerability

> CVE-2025-59689: Libraesva Email Security Gateway Command Injection Vulnerability. CVSS 6.1 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2025-59689
Last updated: 2026-06-17T09:46:31Z

- Published: 2025-09-19 00:00 UTC · Updated: 2026-06-17 09:46 UTC · Assigner: mitre
- CVSS: 6.1 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS: 1.9%, 79th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2025-09-29, federal due date 2025-10-20, ransomware use: Unknown
- CWE: CWE-77

## Description

Libraesva ESG 4.5 through 5.5.x before 5.5.7 allows command injection via a compressed e-mail attachment. For ESG 5.0 a fix has been released in 5.0.31. For ESG 5.1 a fix has been released in 5.1.20. For ESG 5.2 a fix has been released in 5.2.31. For ESG 5.4 a fix has been released in 5.4.8. For ESG 5.5. a fix has been released in 5.5.7.

## CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

## Affected vendors and products

- Libraesva: Email Security Gateway

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-59689)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-59689)
- [https://docs.libraesva.com/knowledgebase/security-advisory-command-injection-vulnerability-cve-2025-59689/](https://docs.libraesva.com/knowledgebase/security-advisory-command-injection-vulnerability-cve-2025-59689/)
- [https://www.libraesva.com/security-blog/](https://www.libraesva.com/security-blog/)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-59689 · Markdown: https://rewindex.com/cve/CVE-2025-59689.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-59689 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:12:48.012Z