How severe is CVE-2026-13743?

CVE-2026-13743 has a CVSS 4.0 base score of 3.3, rated low severity.

Is CVE-2026-13743 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-13743?

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

When was CVE-2026-13743 published?

CVE-2026-13743 was published on 2026-07-02 and last updated on 2026-07-06.

CVE-2026-13743

CVE-2026-13743 is a low-severity vulnerability with a CVSS 4.0 base score of 3.3. 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-347.

Key facts

Severity: Low (CVSS 4.0 base score 3.3)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-347
Published: 2026-07-02
Last modified: 2026-07-06

Description

CubeSpace CW0057 Reaction Wheel firmware versions prior to 5.0.20 are vulnerable to an Improper Verification of Cryptographic Signature vulnerability. This could allow an attacker with physical access to the product to upload arbitrary malicious firmware to the device without authentication.

Frequently asked questions

What is CVE-2026-13743?: CubeSpace CW0057 Reaction Wheel firmware versions prior to 5.0.20 are vulnerable to an Improper Verification of Cryptographic Signature vulnerability. This could allow an attacker with physical access to the product to upload arbitrary malicious firmware to the device without authentication.
How severe is CVE-2026-13743?: CVE-2026-13743 has a CVSS 4.0 base score of 3.3, rated low severity.
Is CVE-2026-13743 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-13743?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-13743 published?: CVE-2026-13743 was published on 2026-07-02 and last updated on 2026-07-06.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-183-02

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