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PatchSiren cyber security CVE debrief

CVE-2019-16278 Nostromo CVE debrief

CVE-2019-16278 is a Nostromo nhttpd directory traversal vulnerability that CISA has added to its Known Exploited Vulnerabilities catalog. The KEV listing means defenders should treat this as a high-priority issue and act by the CISA due date, 2024-11-28, using vendor mitigations if available or discontinuing use of the product if they are not.

Vendor
Nostromo
Product
nhttpd
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2024-11-07
Original CVE updated
2024-11-07
Advisory published
2024-11-07
Advisory updated
2024-11-07

Who should care

Organizations that still run Nostromo nhttpd, especially internet-facing systems or legacy servers, should prioritize this vulnerability. Security teams responsible for asset inventory, vulnerability management, and exposure reduction should also review it promptly because it is listed in CISA’s KEV catalog.

Technical summary

The supplied source corpus identifies CVE-2019-16278 as a directory traversal issue in Nostromo nhttpd. Beyond that classification, the provided sources do not include version ranges, exploit mechanics, or patch details. CISA’s KEV metadata marks it as known exploited and references the vendor instructions link in its notes.

Defensive priority

High. CISA’s KEV inclusion indicates active exploitation or confirmed exploitation in the wild, so remediation should be prioritized over routine backlog scheduling.

Recommended defensive actions

  • Identify whether Nostromo nhttpd is installed anywhere in the environment, including legacy or forgotten systems.
  • Apply vendor mitigations if available, using the vendor instructions referenced by CISA.
  • If mitigations are unavailable, discontinue use of the product per CISA guidance.
  • Remove or isolate exposed instances until remediation is complete.
  • Verify completion before the CISA due date of 2024-11-28.
  • Document compensating controls and update asset inventory to prevent reintroduction.

Evidence notes

This debrief is based only on the supplied CISA KEV metadata and official resource links. The corpus confirms the product, vulnerability classification, KEV status, date added (2024-11-07), and due date (2024-11-28). It does not provide version scope, exploit details, or patch identifiers, so those are intentionally omitted.

Official resources

Publicly disclosed and listed by CISA as a Known Exploited Vulnerability on 2024-11-07. The supplied corpus does not include additional vendor disclosure or patch timeline details.