How severe is CVE-2024-46977?

CVE-2024-46977 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2024-46977 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-46977?

CVE-2024-46977 primarily affects Openc3 Cosmos. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-46977?

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

Does CVE-2024-46977 have an EU (EUVD) identifier?

Yes. CVE-2024-46977 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0127.

When was CVE-2024-46977 published?

CVE-2024-46977 was published on 2024-10-02 and last updated on 2026-06-17.

CVE-2024-46977

CVE-2024-46977 is a medium-severity vulnerability in Openc3 Cosmos with a CVSS 3.x base score of 6.5. 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 5.3
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0127
Weakness: CWE-22
Affected product: Openc3 Cosmos
Published: 2024-10-02
Last modified: 2026-06-17

Description

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. A path traversal vulnerability inside of LocalMode's open_local_file method allows an authenticated user with adequate permissions to download any .txt via the ScreensController#show on the web server COSMOS is running on (depending on the file permissions). This vulnerability is fixed in 5.19.0.

Frequently asked questions

What is CVE-2024-46977?: OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. A path traversal vulnerability inside of LocalMode's open_local_file method allows an authenticated user with adequate permissions to download any .txt via the ScreensController#show on the web server COSMOS is running on (depending on the file permissions). This vulnerability is fixed in 5.19.0.
How severe is CVE-2024-46977?: CVE-2024-46977 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2024-46977 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-46977?: CVE-2024-46977 primarily affects Openc3 Cosmos. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-46977?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-46977 have an EU (EUVD) identifier?: Yes. CVE-2024-46977 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0127.
When was CVE-2024-46977 published?: CVE-2024-46977 was published on 2024-10-02 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:openc3:cosmos:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:openc3:cosmos:*:*:*:*:open_source:*:*:*

More vulnerabilities in Openc3 Cosmos

CVE-2025-28389 — Critical (CVSS 9.8): Weak password requirements in OpenC3 COSMOS v6.0.0 allow attackers to bypass authentication via a brute force attack.
CVE-2025-28388 — Critical (CVSS 9.8): OpenC3 COSMOS before v6.0.2 was discovered to contain hardcoded credentials for the Service Account.
CVE-2025-28386 — Critical (CVSS 9.8): A remote code execution (RCE) vulnerability in the Plugin Management component of OpenC3 COSMOS v6.0.0 allows attackers…
CVE-2026-42088 — Critical (CVSS 9.6): OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems.…
CVE-2026-42087 — Critical (CVSS 9.6): OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems.…
CVE-2025-28384 — Critical (CVSS 9.1): An issue in the /script-api/scripts/ endpoint of OpenC3 COSMOS before 6.1.0 allows attackers to execute a directory…

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