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CVE-2026-75584 (GCVE-0-2026-75584)

Vulnerability from cvelistv5 – Published: 2026-09-10 13:54 – Updated: 2026-09-18 17:23 X_Open Source
VLAI
Title
ION-DTN < 4.2.1-a.1 Denial of Service via canonicalizePayloadBlock() Assertion
Summary
ION-DTN before 4.2.1-a.1 contains a denial of service vulnerability that allows unauthenticated remote attackers to crash the ION process by sending a BPv7 bundle with a zero-length payload. The canonicalizePayloadBlock() function in bpsec_util.c passes bundle->payload.length to zco_clone() without validating it against zero, causing a failed CHKZERO assertion that triggers sm_Abort() and terminates the process with SIGABRT before any HMAC verification occurs, requiring no valid key or credential to exploit.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 17:11 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
nasa-jpl ION-DTN Affected: 0 , ≤ 4.2.0 (semver)
Unaffected: 4.2.1-a.1 (custom)
guessed Create a notification for this product.
Date Public
2026-09-08 00:00
Credits
Asadbek Fatullayev VulnCheck
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
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