CVE-2026-54579
Low
Description
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.
SeverityLow
CVSS2.3
Exploit probability—
ProductMidnightbsd Mport
PublishedSep 17, 2026
First seenSep 17, 2026
Weakness typeCWE-125Out-of-bounds readCWE-345CWE-345
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| MidnightBSD mport | < 2.7.8 | — |
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