CVE-2026-75584 ION-DTN - Denial of Service

ION-DTN before 4.2.1-a.1 contains a denial of service vulnerability caused by improper validation of zero-length payload in BPv7 bundles in canonicalizePayloadBlock(), letting unauthenticated remote attackers crash the process, exploit requires sending a crafted bundle with zero-length payload.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.61% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
10 September 2026
Updated
15 October 2026
Weakness
CWE-617

Vendor fix

Update to version 4.2.1-a.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs