CVE-2026-48858
CSIRTS triage
- What
- The PASV response IP is not validated against the control peer, allowing SSRF and FTP bounce attacks.
- Who is affected
- Users of the affected FTP client.
- Urgency
- Remediation is important due to the medium severity rating and potential for exploitation.
- Action
- Implement validation checks or update the FTP client.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.23% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 14% of all EPSS-scored CVEs.
Advisory coverage (1)
External references
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[](https://www.csirts.com/cve/CVE-2026-48858)