CVE-2020-5548

HIGH
7.5
CVSS Score
Published: April 1, 2020 at 11:15 AM UTC
Updated: June 17, 2026 at 03:21 AM UTC
21 products affected across 1 vendorRTX830 FirmwareNVR510 FirmwareNVR500 Firmware

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

Yamaha LTE VoIP Router(NVR700W firmware Rev.15.00.15 and earlier), Yamaha Gigabit VoIP Router(NVR510 firmware Rev.15.01.14 and earlier), Yamaha Gigabit VPN Router(RTX810 firmware Rev.11.01.33 and earlier, RTX830 firmware Rev.15.02.09 and earlier, RTX1200 firmware Rev.10.01.76 and earlier, RTX1210 firmware Rev.14.01.33 and earlier, RTX3500 firmware Rev.14.00.26 and earlier, and RTX5000 firmware Rev.14.00.26 and earlier), Yamaha Broadband VoIP Router(NVR500 firmware Rev.11.00.38 and earlier), and Yamaha Firewall(FWX120 firmware Rev.11.03.27 and earlier) allow remote attackers to cause a denial of service via unspecified vectors.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 11.03.27
yamaha-fwx120 (same device)
v ≤ 11.00.38
yamaha-nvr500 (same device)
v ≤ 15.01.14
yamaha-nvr510 (same device)
v ≤ 15.00.15
yamaha-nvr700w (same device)
v ≤ 10.01.76
yamaha-rtx1200 (same device)
v ≤ 14.01.33
yamaha-rtx1210 (same device)
v ≤ 14.00.26
yamaha-rtx3500 (same device)
v ≤ 14.00.26
yamaha-rtx5000 (same device)
v ≤ 11.01.33
yamaha-rtx810 (same device)
v ≤ 15.02.09
yamaha-rtx830 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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