Detections
Analytics

CVE-2025-59689

medium

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.

References

https://www.securityweek.com/organizations-warned-of-exploited-sudo-vulnerability/

https://www.cisa.gov/news-events/alerts/2025/09/29/cisa-adds-five-known-exploited-vulnerabilities-catalog

https://thehackernews.com/2025/09/cisa-sounds-alarm-on-critical-sudo-flaw.html

https://www.securityweek.com/libraesva-email-security-gateway-vulnerability-exploited-by-nation-state-hackers/

https://www.helpnetsecurity.com/2025/09/24/libraesva-esg-vulnerability-cve-2025-59689-exploited/

https://thehackernews.com/2025/09/state-sponsored-hackers-exploiting.html

https://securityaffairs.com/182552/hacking/nation-state-hackers-exploit-libraesva-email-gateway-flaw.html

https://www.bleepingcomputer.com/news/security/libraesva-esg-issues-emergency-fix-for-bug-exploited-by-state-hackers/

https://www.libraesva.com/security-blog/

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-59689

https://docs.libraesva.com/knowledgebase/security-advisory-command-injection-vulnerability-cve-2025-59689/

Details

Source: Mitre, NVD

Published: 2025-09-19

Updated: 2025-10-21

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.22048