CVE-2026-120830 high vulnerability summary
A flaw was found in libslirp in icmp_forward_error(). When building an ICMP error response, the length of the quoted original IPv4 packet was taken from the IP header without clamping it to the actual buffer length. A tr...
CVE-2026-120830 is a High severity vulnerability notice that security teams should triage for exposure in their own environments.
What to review
The affected area appears to involve A flaw was found in libslirp in icmp_forward_error(). When building an ICMP error response, the length of the. Administrators should compare this notice against their asset inventory, dependency list, and externally exposed services.
Recommended action
Confirm whether the affected product or library is present, review vendor guidance, prioritize patching based on internet exposure and severity, and monitor logs for suspicious behavior tied to the affected component.
This brief is based on information from Tenable Newest CVEs . Please refer to the original source for the complete advisory and vendor-specific guidance.
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