No exploitation reported

CVE-2019-18240

No exploitation reported by the sources we read.

Published2019-11-13
WeaknessCWE-122 · CWE-787

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

In Fuji Electric V-Server 4.0.6 and prior, several heap-based buffer overflows have been identified, which may allow an attacker to remotely execute arbitrary code.

Timeline

dates in UTC

2019-11-1323:15CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

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-2019-18240?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-18240?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Fujielectric v-server

Branch	Affected	Fixed in	Source
4.0	≤ 4.0.6	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-19-311-02 CISA1 known affected
Fuji Electric V-Server
V-Server: 4.0.6 and prior

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-19-311-02 · 1 productFuji Electric has released Version 4.0.7.0 to mitigate the reported vulnerability.

Detection

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

Sources

NVDCVSS 3.19.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
CNAweakness (CWE)CWE-122read 2026-10-23
NVDweakness (CWE)CWE-787read 2026-10-23
FIRST EPSSEPSS score14.3 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2019-11-13
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-18240?

In Fuji Electric V-Server 4.0.6 and prior, several heap-based buffer overflows have been identified, which may allow an attacker to remotely execute arbitrary code.

Is CVE-2019-18240 actively exploited?

Active exploitation of CVE-2019-18240 has not been confirmed. Its EPSS score was 14.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-18240?

CVE-2019-18240 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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