No exploitation reported

CVE-2018-5447

No exploitation reported by the sources we read.

Published2018-01-25
WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An Improper Input Validation issue was discovered in Nari PCS-9611 relay. An improper input validation vulnerability has been identified that affects a service within the software that may allow a remote attacker to arbitrarily read/access system resources and affect the availability of the system.

Timeline

dates in UTC

2018-01-2522:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-5447?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-5447?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Nrec pcs-9611 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-18-025-01 CISA1 known affected
Nari PCS-9611 (Update A)
PCS-9611 relay: all versions

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-18-025-01 · 1 productNari has released Version 3.14 of the software to resolve the reported vulnerability.
Mitigation from the vendor CISA ICSA-18-025-01 · 1 productEmail: NRservices@nrec.com or NRsales@nrec.com

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.09.8read 2026-10-23
NVDCVSS 2.010read 2026-10-23
CNAweakness (CWE)CWE-20read 2026-10-23
NVDweakness (CWE)CWE-20read 2026-10-23
FIRST EPSSEPSS score2.4 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2018-01-25
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2018-5447?

Is CVE-2018-5447 actively exploited?

Active exploitation of CVE-2018-5447 has not been confirmed. Its EPSS score was 2.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-5447?

CVE-2018-5447 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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