What’s Vulnerable › Vulnerabilities
CVE-2021-45557
- 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 GC108P before 1.0.8.2, GC108PP before 1.0.8.2, GS108Tv3 before 7.0.7.2, GS110TPv3 before 7.0.7.2, GS110TPP before 7.0.7.2, GS110TUP before 1.0.5.3, GS710TUP before 1.0.5.3, GS308T before 1.0.3.2, GS310TP before 1.0.3.2, GS710TUP before 1.0.5.3, GS716TP before 1.0.4.2, GS716TPP before 1.0.4.2, GS724TPP before 2.0.6.3, GS724TPv2 before 2.0.6.3, GS724TPP before 2.0.6.3, GS728TPPv2 before 6.0.8.2, GS728TPv2 before 6.0.8.2, GS752TPv2 before 6.0.8.2, GS752TPP before 6.0.8.2, GS750E before 1.0.1.10, MS510TXM before 1.0.4.2, and MS510TXUP before 1.0.4.2.
Affected products
- NETGEAR Gc108P Firmware: before 1.0.8.2 — fixed in 1.0.8.2
- NETGEAR Gc108Pp Firmware: before 1.0.8.2 — fixed in 1.0.8.2
- NETGEAR Gs108Tv3 Firmware: before 7.0.7.2 — fixed in 7.0.7.2
- NETGEAR Gs110Tpp Firmware: before 7.0.7.2 — fixed in 7.0.7.2
- NETGEAR Gs110Tpv3 Firmware: before 7.0.7.2 — fixed in 7.0.7.2
- NETGEAR Gs110Tup Firmware: before 1.0.5.3 — fixed in 1.0.5.3
- 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 Gs710Tup Firmware: before 1.0.5.3 — fixed in 1.0.5.3
- NETGEAR Gs716Tp Firmware: before 1.0.4.2 — fixed in 1.0.4.2
- NETGEAR Gs716Tpp Firmware: before 1.0.4.2 — fixed in 1.0.4.2
- 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 Gs750E Firmware: before 1.0.1.10 — fixed in 1.0.1.10
- 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 Gc108P Firmware 1.0.8.2; NETGEAR Gc108Pp Firmware 1.0.8.2; NETGEAR Gs108Tv3 Firmware 7.0.7.2; NETGEAR Gs110Tpp Firmware 7.0.7.2; NETGEAR Gs110Tpv3 Firmware 7.0.7.2; NETGEAR Gs110Tup Firmware 1.0.5.3; NETGEAR Gs308T Firmware 1.0.3.2; NETGEAR Gs310Tp Firmware 1.0.3.2; NETGEAR Gs710Tup Firmware 1.0.5.3; NETGEAR Gs716Tp Firmware 1.0.4.2; NETGEAR Gs716Tpp Firmware 1.0.4.2; NETGEAR Gs724Tpp Firmware 2.0.6.3. Check the vendor advisory for mitigations.
References
- https://kb.netgear.com/000064164/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Switches-PSV-2021-0167
- https://kb.netgear.com/000064164/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Switches-PSV-2021-0167
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