CVE-2026-54579NVD

Vulnerability Summary

mport is the MidnightBSD Package Manager. Prior to 2.7.8, ping() in libmport/ping.c accepted ICMP replies without validating icmp_id or icmp_seq and parsed the reply using a fixed IP-header offset instead of ip_hl. A network attacker able to inject or spoof visible ICMP replies could influence mirror latency selection, while a malformed packet carrying IP options could shift the ICMP header and trigger an out-of-bounds read. This issue is fixed in version 2.7.8.

Severity Level

UNKNOWN

Published Date

Sep 17, 2026

Last Modified

Sep 17, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.14%Probability

Root Weakness (CWE)

CWE-125: Out-of-bounds Read ↗

The software reads data past the end, or before the beginning, of the intended buffer.

CWE-345: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v4.0 Base Metrics — Score 2.3 (LOW)

Attack VectorAdjacent

Attack ComplexityLow

Attack RequirementsPresent

Privileges RequiredNone

User InteractionNone

Confidentiality (Vulnerable System)None

Integrity (Vulnerable System)Low

Availability (Vulnerable System)Low

Confidentiality (Subsequent System)None

Integrity (Subsequent System)None

Availability (Subsequent System)None

Affected & Patched Versions

Affected Versions

MidnightBSD mport >= < 2.7.8

Patched Versions

Not provided by cveorg for this CVE.

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