CVE-2026-54579 - mport mirror-selection ping accepts insufficiently validated ICMP replies · CoreCVE

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LOW

mport mirror-selection ping accepts insufficiently validated ICMP replies

Published Sep 17, 2026

2.3

LOW

CVSS 4.0

EPSS 0.16%

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.

Affected products

Vendor MidnightBSD Product Mport Default
n/a
- Version
  < 2.7.8
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

n/a

Version	Status	Constraints
< 2.7.8	affected	-

Remediation

No remediation recorded yet.

Weaknesses (2)

CWE-125

Out-of-bounds Read

CWE-345

References (1)

https://github.com/MidnightBSD/mport/security/advisories/GHSA-qc2f-2j7j-m3r7
x_refsource_CONFIRM

Link	Providers	Tags
https://github.com/MidnightBSD/mport/security/advisories/GHSA-qc2f-2j7j-m3r7		x_refsource_CONFIRM

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner GitHub_M

Published Sep 17, 2026

Updated Sep 24, 2026

Reserved Jun 15, 2026

Link CVE-2026-54579

CISA Vulnrichment

Updated Sep 24, 2026

Status Deferred

Modified Sep 17, 2026

Link CVE-2026-54579

Severity n/a

Public date n/a

Links CVE-2026-54579