CVE-2026-75584 (GCVE-0-2026-75584)
Vulnerability from cvelistv5 – Published: 2026-09-10 13:54 – Updated: 2026-09-10 13:54 X_Open Source
VLAI
EPSS
VEX
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
CWE
- CWE-617 - Reachable Assertion
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/nasa-jpl/ION-DTN/security/advi… | vendor-advisory |
| https://www.vulncheck.com/advisories/ion-dtn-a-1-… | third-party-advisory |
Impacted products
Date Public
2026-09-08 00:00
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"packageURL": "pkg:github/nasa-jpl/ION-DTN",
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"repo": "https://github.com/nasa-jpl/ION-DTN",
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}
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"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
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"url": "https://github.com/nasa-jpl/ION-DTN/security/advisories/GHSA-9vgc-2r6g-6qwf"
},
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"source": {
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"tags": [
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"title": "ION-DTN \u003c 4.2.1-a.1 Denial of Service via canonicalizePayloadBlock() Assertion",
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"datePublished": "2026-09-10T13:54:08.218Z",
"dateReserved": "2026-08-17T22:02:43.612Z",
"dateUpdated": "2026-09-10T13:54:08.218Z",
"state": "PUBLISHED"
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}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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
| Author | Source | Type | Date | Other |
|---|
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.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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