What’s Vulnerable › Vulnerabilities

CVE-2019-20699

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-04-16 · updated 2026-06-17
• Weakness: CWE-120

Description

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects GS105Ev2 before 1.6.0.4, GS105PE before 1.6.0.4, GS408EPP before 1.0.0.15, GS808E before 1.7.0.7, GS908E before 1.7.0.3, GSS108E before 1.6.0.4, and GSS108EPP before 1.0.0.15.

Affected products

• NETGEAR Gs105E Firmware: before 1.6.0.4 — fixed in 1.6.0.4
• NETGEAR Gs105Pe Firmware: before 1.6.0.4 — fixed in 1.6.0.4
• NETGEAR Gs408Epp Firmware: before 1.0.0.15 — fixed in 1.0.0.15
• NETGEAR Gs808E Firmware: before 1.7.0.7 — fixed in 1.7.0.7
• NETGEAR Gs908E Firmware: before 1.7.0.3 — fixed in 1.7.0.3
• NETGEAR Gss108E Firmware: before 1.6.0.4 — fixed in 1.6.0.4
• NETGEAR Gss108Epp Firmware: before 1.0.0.15 — fixed in 1.0.0.15

How to fix

Upgrade to a fixed version: NETGEAR Gs105E Firmware 1.6.0.4; NETGEAR Gs105Pe Firmware 1.6.0.4; NETGEAR Gs408Epp Firmware 1.0.0.15; NETGEAR Gs808E Firmware 1.7.0.7; NETGEAR Gs908E Firmware 1.7.0.3; NETGEAR Gss108E Firmware 1.6.0.4; NETGEAR Gss108Epp Firmware 1.0.0.15. Check the vendor advisory for mitigations.

References

• https://kb.netgear.com/000061230/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Switches-PSV-2018-0538
• https://kb.netgear.com/000061230/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Switches-PSV-2018-0538

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