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CVE-2026-5473

26
FAUCET Score

CVE-2026-5473 identifies a deserialization vulnerability within the `pickle.load` function of the Pickle Module in NASA cFS up to version 7.0.0. This vulnerability is rated Medium (CVSS 4.5), requiring local access and a high level of complexity to exploit, potentially leading to low impacts on confidentiality, integrity, and availability. Although exploit details have been publicly disclosed, exploitation is considered difficult, and there is currently no evidence of active exploitation or significant community attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.0.0CPE matchmatch criteria
cpe:2.3:a:nasa:core_flight_system:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

1.1LOW

CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
13.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 39th percentile among its peer group of 1,516 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / nasa/cFS
Product
github.com / nasa/cFS/issues/951
Issue Tracking
vuldb.com / submit/781949
Third Party AdvisoryVDB Entry
vuldb.com / vuln/355077
Third Party AdvisoryVDB Entry
vuldb.com / vuln/355077/cti
Permissions RequiredVDB Entry