How severe is CVE-2026-5473?

CVE-2026-5473 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-5473 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5473?

CVE-2026-5473 affects Nasa Core Flight System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5473?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-5473 have an EU (EUVD) identifier?

Yes. CVE-2026-5473 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18805.

When was CVE-2026-5473 published?

CVE-2026-5473 was published on 2026-04-03 and last updated on 2026-06-17.

CVE-2026-5473

CVE-2026-5473 is a medium-severity vulnerability in Nasa Core Flight System with a CVSS 3.x base score of 4.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: Medium (CVSS 3.x base score 4.5)
CVSS v2: 3.5
CVSS v4: 1.1
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18805
Weakness: CWE-502
Affected product: Nasa Core Flight System
Published: 2026-04-03
Last modified: 2026-06-17

Description

A vulnerability has been found in NASA cFS up to 7.0.0. The impacted element is the function pickle.load of the component Pickle Module. Such manipulation leads to deserialization. The attack needs to be performed locally. The attack requires a high level of complexity. The exploitability is regarded as difficult. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Frequently asked questions

What is CVE-2026-5473?: A vulnerability has been found in NASA cFS up to 7.0.0. The impacted element is the function pickle.load of the component Pickle Module. Such manipulation leads to deserialization. The attack needs to be performed locally. The attack requires a high level of complexity. The exploitability is regarded as difficult. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
How severe is CVE-2026-5473?: CVE-2026-5473 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-5473 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5473?: CVE-2026-5473 affects Nasa Core Flight System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5473?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-5473 have an EU (EUVD) identifier?: Yes. CVE-2026-5473 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18805.
When was CVE-2026-5473 published?: CVE-2026-5473 was published on 2026-04-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nasa:core_flight_system:*:*:*:*:*:*:*:*

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