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CVE-2018-21093

HIGHCVSS 8.8/10EPSS 0.61%

Last modified

CVE-2018-21093 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D8500 before 1.0.3.42, EX3700 before 1.0.0.70, EX3800 before 1.0.0.70, EX6000 before 1.0.0.30, EX6100 before 1.0.2.24, EX6120 before 1.0.0.40, EX6130 before 1.0.0.22, EX6150 before 1.0.0.42, EX6200 before 1.0.3.88, EX7000 before 1.0.0.66, R6250 before 1.0.4.26, R6300-2CXNAS before 1.0.3.60, R6300v2 before 1.0.4.28, R6400 before 1.0.1.36, R6400v2 before 1.0.2.52, R6700 before 1.0.1.46, R6900 before 1.0.1.46, R7000 before 1.0.9.28, R7000P before 1.3.1.44, R6900P before 1.3.1.44, R7100LG before 1.0.0.46, R7300 before 1.0.0.68, R7900 before 1.0.2.10, R8000 before 1.0.4.18, R8000P before 1.3.0.10, R7900P before 1.3.0.10, R8500 before 1.0.2.122, R8300 before 1.0.2.122, RBW30 before 2.1.2.6, WN2500RPv2 before 1.0.0.54, and WNR3500Lv2 before 1.2.0.56.. EPSS estimates a 0.61% chance of exploitation in the next 30 days.

Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D8500 before 1.0.3.42, EX3700 before 1.0.0.70, EX3800 before 1.0.0.70, EX6000 before 1.0.0.30, EX6100 before 1.0.2.24, EX6120 before 1.0.0.40, EX6130 before 1.0.0.22, EX6150 before 1.0.0.42, EX6200 before 1.0.3.88, EX7000 before 1.0.0.66, R6250 before 1.0.4.26, R6300-2CXNAS before 1.0.3.60, R6300v2 before 1.0.4.28, R6400 before 1.0.1.36, R6400v2 before 1.0.2.52, R6700 before 1.0.1.46, R6900 before 1.0.1.46, R7000 before 1.0.9.28, R7000P before 1.3.1.44, R6900P before 1.3.1.44, R7100LG before 1.0.0.46, R7300 before 1.0.0.68, R7900 before 1.0.2.10, R8000 before 1.0.4.18, R8000P before 1.3.0.10, R7900P before 1.3.0.10, R8500 before 1.0.2.122, R8300 before 1.0.2.122, RBW30 before 2.1.2.6, WN2500RPv2 before 1.0.0.54, and WNR3500Lv2 before 1.2.0.56.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
0.61%

44.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
NetgearD8500 Firmware< 1.0.3.42
NetgearEx3700 Firmware< 1.0.0.70
NetgearEx3800 Firmware< 1.0.0.70
NetgearEx6000 Firmware< 1.0.0.30
NetgearEx6100 Firmware< 1.0.2.24
NetgearEx6120 Firmware< 1.0.0.40
NetgearEx6130 Firmware< 1.0.0.22
NetgearEx6150 Firmware< 1.0.0.42
NetgearEx6200 Firmware< 1.0.3.88
NetgearEx7000 Firmware< 1.0.0.66
NetgearR6250 Firmware< 1.0.4.26
NetgearR6300-2cxnas Firmware< 1.0.3.60
NetgearR6300 Firmware< 1.0.4.28
NetgearR6400 Firmware< 1.0.1.36
NetgearR6400 Firmware< 1.0.2.52
NetgearR6700 Firmware< 1.0.1.46
NetgearR6900 Firmware< 1.0.1.46
NetgearR7000 Firmware< 1.0.9.28
NetgearR7000p Firmware< 1.3.1.44
NetgearR6900p Firmware< 1.3.1.44
NetgearR7100lg Firmware< 1.0.0.46
NetgearR7300 Firmware< 1.0.0.68
NetgearR7900 Firmware< 1.0.2.10
NetgearR8000 Firmware< 1.0.4.18
NetgearR8000p Firmware< 1.3.0.10
NetgearR7900p Firmware< 1.3.0.10
NetgearR8500 Firmware< 1.0.2.122
NetgearR8300 Firmware< 1.0.2.122
NetgearRbw30 Firmware< 2.1.2.6
NetgearWn2500rp Firmware< 1.0.0.54
NetgearWnr3500l Firmware< 1.2.0.56

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-21093?
Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D8500 before 1.0.3.42, EX3700 before 1.0.0.70, EX3800 before 1.0.0.70, EX6000 before 1.0.0.30, EX6100 before 1.0.2.24, EX6120 before 1.0.0.40, EX6130 before 1.0.0.22, EX6150 before 1.0.0.42, EX6200 before 1.0.3.88, EX7000 before 1.0.0.66, R6250 before 1.0.4.26, R6300-2CXNAS before 1.0.3.60, R6300v2 before 1.0.4.28, R6400 before 1.0.1.36, R6400v2 before 1.0.2.52, R6700 before 1.0.1.46, R6900 before 1.0.1.46, R7000 before 1.0.9.28, R7000P before 1.3.1.44, R6900P before 1.3.1.44, R7100LG before 1.0.0.46, R7300 before 1.0.0.68, R7900 before 1.0.2.10, R8000 before 1.0.4.18, R8000P before 1.3.0.10, R7900P before 1.3.0.10, R8500 before 1.0.2.122, R8300 before 1.0.2.122, RBW30 before 2.1.2.6, WN2500RPv2 before 1.0.0.54, and WNR3500Lv2 before 1.2.0.56.
How severe is CVE-2018-21093?
CVE-2018-21093 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.61% probability of exploitation in the next 30 days.
How do I fix CVE-2018-21093?
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