Vulnerability details
CVE-2025-59689
Actively exploited
Libraesva Email Security Gateway
CVSS 3.1
6.1Medium
Remedy
Required action (CISA): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. (due: 2025-10-20)
Versions not listed as affected in the CVE record:
- Email Security Gateway — version 5.0.31 and later
- Email Security Gateway — version 5.1.20 and later
- Email Security Gateway — version 5.2.31 and later
- Email Security Gateway — version 5.4.8 and later
- Email Security Gateway — version 5.5.7 and later
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 6.1Medium | 3.1 | CVEProject cvelistV5 (CNA) (mitre) | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Libraesva | Email Security Gateway | 4.5 ≤ v < 5.0.31 | CVEProject cvelistV5 (CNA) |
| Libraesva | Email Security Gateway | 5.1 ≤ v < 5.1.20 | CVEProject cvelistV5 (CNA) |
| Libraesva | Email Security Gateway | 5.2 ≤ v < 5.2.31 | CVEProject cvelistV5 (CNA) |
| Libraesva | Email Security Gateway | 5.3 ≤ v < 5.4.8 | CVEProject cvelistV5 (CNA) |
| Libraesva | Email Security Gateway | 5.5 ≤ v < 5.5.7 | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2025-09-19
- Last updated
- 2026-02-26
- State
- Published
- Assigner (CNA)
- mitre
- Kolun priority
- 69 · High
CISA KEV catalog
- Date added
- 2025-09-29
- Due date
- 2025-10-20
- Used in ransomware
- Unknown
Exploit prediction (EPSS)
1.95%
Probability of exploitation in 30 days
80.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')