Is CVE-2014-7255 being actively exploited?

CVE-2014-7255 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2014-7255?

CVE-2014-7255 has a CVSS 3.1 base score of 7.5 (HIGH).

CVE-2014-7255

HIGH · CVSS 7.5EPSS 3.2%EU EUVD

Internet Initiative Japan Inc. SEIL Series routers SEIL/X1 2.50 through 4.62, SEIL/X2 2.50 through 4.62, SEIL/B1 2.50 through 4.62, and SEIL/x86 Fuji 1.70 through 3.22 allow remote attackers to cause a denial of service (CPU and traffic consumption) via a large number of NTP requests within a short time, which causes unnecessary NTP responses to be sent.

Key facts

CVSS score: 7.5 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-400
EPSS score: 3.2% (88th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2014-7126)
Published: December 5, 2014
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2014-7126 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

iij / seil b1
iij / seil b1 firmware
iij / seil x1
iij / seil x1 firmware
iij / seil x2
iij / seil x2 firmware
iij / seil x86 fuji
iij / seil x86 fuji firmware

References

http://jvn.jp/en/jp/JVN21907573/index.html(Third Party Advisory)
http://jvndb.jvn.jp/ja/contents/2014/JVNDB-2014-000135.html(Third Party Advisory, VDB Entry)
http://www.seil.jp/support/security/a01510.html(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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