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CVE-2026-75584— ION-DTN < 4.2.1-a.1 Denial of Service via canonicalizePayloadBlock() Assertion

Quick assessment

Affected
nasa-jpl ION-DTN
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NASA Jet Propulsion Laboratory NASA/JPL Interplanetary Overlay Network是美国NASA Jet Propulsion Laboratory政府部门的一款深空通信场景下的星际覆盖网络协议软件。 NASA Jet Propulsion Laboratory NASA/JPL Interplanetary Overlay Network 4.2.1-a.1之前版本存在异常处理不当漏洞，该漏洞源于未验证bundle->payload.length

CVSS 7.5 · High EPSS 0.43% · P36

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 2

VendorProduct Version RangeStatus
nasa-jpl ION-DTN ≤ 4.2.0 affected
4.2.1-a.1 unaffected
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I. Basic Information for CVE-2026-75584

Vulnerability Information
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Vulnerability Title
ION-DTN < 4.2.1-a.1 Denial of Service via canonicalizePayloadBlock() Assertion
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可达断言
Source: CVE Program / CVE List V5
Vulnerability Title
NASA Jet Propulsion Laboratory NASA/JPL Interplanetary Overlay Network 异常处理不当漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NASA Jet Propulsion Laboratory NASA/JPL Interplanetary Overlay Network是美国NASA Jet Propulsion Laboratory政府部门的一款深空通信场景下的星际覆盖网络协议软件。 NASA Jet Propulsion Laboratory NASA/JPL Interplanetary Overlay Network 4.2.1-a.1之前版本存在异常处理不当漏洞，该漏洞源于未验证bundle->payload.length
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
nasa-jpl ION-DTN 0 ~ 4.2.0 -

II. Public POCs for CVE-2026-75584

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III. Intelligence Information for CVE-2026-75584

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Vendor Advisories for CVE-2026-75584 (2)

IV. Related Vulnerabilities

Same product: ION-DTN
Same vendor: nasa-jpl
Same weakness: CWE-617

V. Comments for CVE-2026-75584

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