How severe is CVE-2026-3484?

CVE-2026-3484 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-3484 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-3484?

CVE-2026-3484 affects Phialsbasement Mcp Nmap Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-3484?

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

Does CVE-2026-3484 have an EU (EUVD) identifier?

Yes. CVE-2026-3484 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9317.

When was CVE-2026-3484 published?

CVE-2026-3484 was published on 2026-03-03 and last updated on 2026-06-17.

CVE-2026-3484

CVE-2026-3484 is a medium-severity vulnerability in Phialsbasement Mcp Nmap Server with a CVSS 3.x base score of 6.3. 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-77.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
CVSS v4: 5.3
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9317
Weakness: CWE-77
Affected product: Phialsbasement Mcp Nmap Server
Published: 2026-03-03
Last modified: 2026-06-17

Description

A vulnerability was detected in PhialsBasement nmap-mcp-server up to bee6d23547d57ae02460022f7c78ac0893092e38. Affected by this issue is the function child_process.exec of the file src/index.ts of the component Nmap CLI Command Handler. The manipulation results in command injection. The attack may be performed from remote. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The patch is identified as 30a6b9e1c7fa6146f51e28d6ab83a2568d9a3488. It is best practice to apply a patch to resolve this issue.

Frequently asked questions

What is CVE-2026-3484?: A vulnerability was detected in PhialsBasement nmap-mcp-server up to bee6d23547d57ae02460022f7c78ac0893092e38. Affected by this issue is the function child_process.exec of the file src/index.ts of the component Nmap CLI Command Handler. The manipulation results in command injection. The attack may be performed from remote. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The patch is identified as 30a6b9e1c7fa6146f51e28d6ab83a2568d9a3488. It is best practice to apply a patch to resolve this issue.
How severe is CVE-2026-3484?: CVE-2026-3484 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-3484 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3484?: CVE-2026-3484 affects Phialsbasement Mcp Nmap Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-3484?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-3484 have an EU (EUVD) identifier?: Yes. CVE-2026-3484 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9317.
When was CVE-2026-3484 published?: CVE-2026-3484 was published on 2026-03-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phialsbasement:mcp_nmap_server:*:*:*:*:*:*:*:*

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