CVE-2014-7255

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.

Published: 2014-12-05 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-7255 is rated Moderate Risk (59.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.77%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2014-7255

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-04-08 1.06% 1.77% +0.72%
2 2025-03-30 1.85% 1.06% -0.79%
3 2025-03-29 — 1.85% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-7255

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2014-7255

Affected software / configurations for CVE-2014-7255

Vendor Product Version Raw CPE
iij seil_b1_firmware >= 2.50, <= 4.62 cpe:2.3:o:iij:seil_b1_firmware:*:*:*:*:*:*:*:*
iij seil_x2_firmware >= 2.50, <= 4.62 cpe:2.3:o:iij:seil_x2_firmware:*:*:*:*:*:*:*:*
iij seil_x1_firmware >= 2.50, <= 4.62 cpe:2.3:o:iij:seil_x1_firmware:*:*:*:*:*:*:*:*
iij seil_x86_fuji_firmware >= 1.70, <= 3.22 cpe:2.3:o:iij:seil_x86_fuji_firmware:*:*:*:*:*:*:*:*

References for CVE-2014-7255

cvelogic Threat Intelligence