How severe is CVE-2019-16278?

CVE-2019-16278 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-16278 being actively exploited?

Yes. CVE-2019-16278 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2024-11-07, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2019-16278?

CVE-2019-16278 affects Nazgul Nostromo Nhttpd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-16278?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2019-16278 have an EU (EUVD) identifier?

Yes. CVE-2019-16278 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-7077. It is also flagged as exploited in the EUVD (since 2024-11-07).

When was CVE-2019-16278 published?

CVE-2019-16278 was published on 2019-10-14 and last updated on 2026-06-17.

CVE-2019-16278

CVE-2019-16278 is a critical-severity vulnerability in Nazgul Nostromo Nhttpd with a CVSS 3.x base score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2024-11-07). The underlying weakness is classified as CWE-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 99% (100th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2024-11-07)
EU (EUVD) id: EUVD-2019-7077
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2024-11-07)
Weakness: CWE-22
Affected product: Nazgul Nostromo Nhttpd
Published: 2019-10-14
Last modified: 2026-06-17

Description

Directory Traversal in the function http_verify in nostromo nhttpd through 1.9.6 allows an attacker to achieve remote code execution via a crafted HTTP request.

Frequently asked questions

What is CVE-2019-16278?: Directory Traversal in the function http_verify in nostromo nhttpd through 1.9.6 allows an attacker to achieve remote code execution via a crafted HTTP request.
How severe is CVE-2019-16278?: CVE-2019-16278 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-16278 being actively exploited?: Yes. CVE-2019-16278 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2024-11-07, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2019-16278?: CVE-2019-16278 affects Nazgul Nostromo Nhttpd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-16278?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2019-16278 have an EU (EUVD) identifier?: Yes. CVE-2019-16278 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-7077. It is also flagged as exploited in the EUVD (since 2024-11-07).
When was CVE-2019-16278 published?: CVE-2019-16278 was published on 2019-10-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nazgul:nostromo_nhttpd:*:*:*:*:*:*:*:*

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