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CVE-2018-21153

CRITICALCVSS 9.8/10EPSS 1.54%

Last modified

CVE-2018-21153 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D7800 before 1.0.1.34, DM200 before 1.0.0.50, EX2700 before 1.0.1.32, EX6100v2 before 1.0.1.70, EX6150v2 before 1.0.1.70, EX6200v2 before 1.0.1.62, EX6400 before 1.0.1.78, EX7300 before 1.0.1.62, EX8000 before 1.0.0.114, R6100 before 1.0.1.22, R7500 before 1.0.0.122, R7500v2 before 1.0.3.26, R7800 before 1.0.2.40, R8900 before 1.0.3.10, R9000 before 1.0.3.10, WN2000RPTv3 before 1.0.1.26, WN3000RPv2 before 1.0.0.56, WN3000RPv3 before 1.0.2.66, WN3100RPv2 before 1.0.0.56, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.54, WNDR4500v3 before 1.0.0.54, and WNR2000v5 before 1.0.0.64.. EPSS estimates a 1.54% chance of exploitation in the next 30 days.

Description

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D7800 before 1.0.1.34, DM200 before 1.0.0.50, EX2700 before 1.0.1.32, EX6100v2 before 1.0.1.70, EX6150v2 before 1.0.1.70, EX6200v2 before 1.0.1.62, EX6400 before 1.0.1.78, EX7300 before 1.0.1.62, EX8000 before 1.0.0.114, R6100 before 1.0.1.22, R7500 before 1.0.0.122, R7500v2 before 1.0.3.26, R7800 before 1.0.2.40, R8900 before 1.0.3.10, R9000 before 1.0.3.10, WN2000RPTv3 before 1.0.1.26, WN3000RPv2 before 1.0.0.56, WN3000RPv3 before 1.0.2.66, WN3100RPv2 before 1.0.0.56, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.54, WNDR4500v3 before 1.0.0.54, and WNR2000v5 before 1.0.0.64.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.54%

71.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
NetgearD7800 Firmware< 1.0.1.34
NetgearDm200 Firmware< 1.0.0.50
NetgearEx2700 Firmware< 1.0.1.32
NetgearEx6100 Firmware< 1.0.1.70
NetgearEx6150 Firmware< 1.0.1.70
NetgearEx6200 Firmware< 1.0.1.62
NetgearEx6400 Firmware< 1.0.1.78
NetgearEx7300 Firmware< 1.0.1.62
NetgearEx8000 Firmware< 1.0.0.114
NetgearR6100 Firmware< 1.0.1.22
NetgearR7500 Firmware< 1.0.0.122
NetgearR7500 Firmware< 1.0.3.26
NetgearR7800 Firmware< 1.0.2.40
NetgearR8900 Firmware< 1.0.3.10
NetgearR9000 Firmware< 1.0.3.10
NetgearWn2000rpt Firmware< 1.0.1.26
NetgearWn3000rp Firmware< 1.0.0.56
NetgearWn3000rp Firmware< 1.0.2.66
NetgearWn3100rp Firmware< 1.0.0.56
NetgearWndr4300 Firmware< 1.0.2.98
NetgearWndr4300 Firmware< 1.0.0.54
NetgearWndr4500 Firmware< 1.0.0.54
NetgearWnr2000 Firmware< 1.0.0.64

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-21153?
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D7800 before 1.0.1.34, DM200 before 1.0.0.50, EX2700 before 1.0.1.32, EX6100v2 before 1.0.1.70, EX6150v2 before 1.0.1.70, EX6200v2 before 1.0.1.62, EX6400 before 1.0.1.78, EX7300 before 1.0.1.62, EX8000 before 1.0.0.114, R6100 before 1.0.1.22, R7500 before 1.0.0.122, R7500v2 before 1.0.3.26, R7800 before 1.0.2.40, R8900 before 1.0.3.10, R9000 before 1.0.3.10, WN2000RPTv3 before 1.0.1.26, WN3000RPv2 before 1.0.0.56, WN3000RPv3 before 1.0.2.66, WN3100RPv2 before 1.0.0.56, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.54, WNDR4500v3 before 1.0.0.54, and WNR2000v5 before 1.0.0.64.
How severe is CVE-2018-21153?
CVE-2018-21153 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.54% probability of exploitation in the next 30 days.
How do I fix CVE-2018-21153?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST