CVE-2015-7256

Severity: medium (CVSS 5.9 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-09-28 · updated 2026-06-17
Weakness: CWE-310

Description

ZyXEL NWA1100-N, NWA1100-NH, NWA1121-NI, NWA1123-AC, and NWA1123-NI access points; P-660HN-51, P-663HN-51, VMG1312-B10A, VMG1312-B30A, VMG1312-B30B, VMG4380-B10A, VMG8324-B10A, VMG8924-B10A, VMG8924-B30A, and VSG1435-B101 DSL CPEs; PMG5318-B20A GPONs; SBG3300-N000, SBG3300-NB00, and SBG3500-N000 small business gateways; GS1900-8 and GS1900-24 switches; and C1000Z, Q1000, FR1000Z, and P8702N project models use non-unique X.509 certificates and SSH host keys.

Affected products

Zyxel C1000Z Firmware: all versions
Zyxel Fr1000Z Firmware: all versions
Zyxel GS1900-24 firmware: all versions
Zyxel GS1900-8 firmware: all versions
Zyxel NWA1100-N firmware: all versions
Zyxel NWA1100-NH firmware: all versions
Zyxel Nwa1121-Ni Firmware: all versions
Zyxel Nwa1123-Ac Firmware: all versions
Zyxel Nwa1123-Ni Firmware: all versions
Zyxel P-660Hn-51 Firmware: all versions
Zyxel P-663Hn-51 Firmware: all versions
Zyxel P8702N Firmware: all versions
Zyxel Pmg5318-B20A Firmware: all versions
Zyxel Q1000 Firmware: all versions
Zyxel Sbg3300-N000 Firmware: all versions
Zyxel Sbg3300-Nb00 Firmware: all versions
Zyxel Sbg3500-N000 Firmware: all versions
Zyxel Vmg1312-B10A Firmware: all versions
Zyxel Vmg1312-B30A Firmware: all versions
Zyxel Vmg1312-B30B Firmware: all versions
Zyxel Vmg4380-B10A Firmware: all versions
Zyxel Vmg8324-B10A Firmware: all versions
Zyxel Vmg8924-B10A Firmware: all versions
Zyxel Vmg8924-B30A Firmware: all versions
Zyxel Vsg1435-B101 Firmware: all versions

References

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