What’s Vulnerable › Vulnerabilities
CVE-2021-45556
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-12-26 · updated 2026-06-17
- Weakness: CWE-77
Description
Certain NETGEAR devices are affected by command injection by an authenticated user. This affects GS108Tv2 before 5.4.2.36, GS110TPP before 7.0.7.2, GS110TPv2 before 5.4.2.36., GS110TPv3 before 7.0.7.2, GS308T before 1.0.3.2, GS310TP before 1.0.3.2, GS724TPP before 2.0.6.3, GS724TPv2 before 2.0.6.3, GS728TPPv2 before 6.0.8.2, GS728TPv2 before 6.0.8.2, GS752TPP before 6.0.8.2, GS752TPv2 before 6.0.8.2, MS510TXM before 1.0.4.2, and MS510TXUP before 1.0.4.2.
Affected products
- NETGEAR Gs108Tv2 Firmware: before 5.4.2.36 — fixed in 5.4.2.36
- NETGEAR Gs110Tpp Firmware: before 7.0.7.2 — fixed in 7.0.7.2
- NETGEAR Gs110Tpv2 Firmware: before 5.4.2.36 — fixed in 5.4.2.36
- NETGEAR Gs110Tpv3 Firmware: before 7.0.7.2 — fixed in 7.0.7.2
- NETGEAR Gs308T Firmware: before 1.0.3.2 — fixed in 1.0.3.2
- NETGEAR Gs310Tp Firmware: before 1.0.3.2 — fixed in 1.0.3.2
- NETGEAR Gs724Tpp Firmware: before 2.0.6.3 — fixed in 2.0.6.3
- NETGEAR Gs724Tpv2 Firmware: before 2.0.6.3 — fixed in 2.0.6.3
- NETGEAR Gs728Tppv2 Firmware: before 6.0.8.2 — fixed in 6.0.8.2
- NETGEAR Gs728Tpv2 Firmware: before 6.0.8.2 — fixed in 6.0.8.2
- NETGEAR Gs752Tpp Firmware: before 6.0.8.2 — fixed in 6.0.8.2
- NETGEAR Gs752Tpv2 Firmware: before 6.0.8.2 — fixed in 6.0.8.2
- NETGEAR Ms510Txm Firmware: before 1.0.4.2 — fixed in 1.0.4.2
- NETGEAR Ms510Txup Firmware: before 1.0.4.2 — fixed in 1.0.4.2
How to fix
Upgrade to a fixed version: NETGEAR Gs108Tv2 Firmware 5.4.2.36; NETGEAR Gs110Tpp Firmware 7.0.7.2; NETGEAR Gs110Tpv2 Firmware 5.4.2.36; NETGEAR Gs110Tpv3 Firmware 7.0.7.2; NETGEAR Gs308T Firmware 1.0.3.2; NETGEAR Gs310Tp Firmware 1.0.3.2; NETGEAR Gs724Tpp Firmware 2.0.6.3; NETGEAR Gs724Tpv2 Firmware 2.0.6.3; NETGEAR Gs728Tppv2 Firmware 6.0.8.2; NETGEAR Gs728Tpv2 Firmware 6.0.8.2; NETGEAR Gs752Tpp Firmware 6.0.8.2; NETGEAR Gs752Tpv2 Firmware 6.0.8.2. Check the vendor advisory for mitigations.
References
- https://kb.netgear.com/000064534/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Smart-Managed-Pro-Switches-PSV-2021-0175
- https://kb.netgear.com/000064534/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Smart-Managed-Pro-Switches-PSV-2021-0175
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