CVE-2026-67973 — An issue in the CFDP receive path of NASA cFS v7.0.1 allows attackers to cause a Denial of Service (DoS) via replaying final CFDP PDUs

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HIGH

An issue in the CFDP receive path of NASA cFS v7.0.1 allows attackers to cause a Denial of Service (DoS) via replaying final CFDP PDUs

Published Aug 3, 2026

7.5

HIGH

CVSS 3.1

EPSS 0.49%

Description

An issue in the CFDP receive path of NASA cFS v7.0.1 allows attackers to cause a Denial of Service (DoS) via replaying final CFDP PDUs.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.49% 0.00488

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00488

Score over time

Aug–Oct 2026

EPSS v5

Percentile over time

EPSS v5

Table of values (2 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.49% (0.00488)	39.70th	v5 (v2026.06.15)
Aug 4, 2026	0.14% (0.00145)	4.27th	v5 (v2026.06.15)

Weaknesses (1)

CWE-400

Uncontrolled Resource Consumption

References (2)

Link	Providers	Tags
https://github.com/nasa/cFS
https://github.com/nasa/cFS/issues/1075		exploit

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Aug 3, 2026

Updated Aug 5, 2026

Reserved Jul 30, 2026

Link CVE-2026-67973

CISA Vulnrichment

Updated Aug 5, 2026

NVD

Status Awaiting Analysis

Modified Aug 31, 2026

Link CVE-2026-67973

Red Hat

Severity n/a

Public date n/a

Links CVE-2026-67973