// For flags

CVE-2021-40866

 

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Certain NETGEAR smart switches are affected by a remote admin password change by an unauthenticated attacker via the (disabled by default) /sqfs/bin/sccd daemon, which fails to check authentication when the authentication TLV is missing from a received NSDP packet. This affects GC108P before 1.0.8.2, GC108PP before 1.0.8.2, GS108Tv3 before 7.0.7.2, GS110TPP before 7.0.7.2, GS110TPv3 before 7.0.7.2, GS110TUP 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, GS728TPPv2 before 6.0.8.2, GS728TPv2 before 6.0.8.2, GS750E before 1.0.1.10, 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.

Determinados smart switches de NETGEAR están afectados por un cambio de contraseña de administrador remoto por parte de un atacante no autenticado por medio del demonio /sqfs/bin/sccd (desactivado por defecto), que no comprueba la autenticación cuando falta el TLV de autenticación en un paquete NSDP recibido. Esto afecta a GC108P versiones anteriores a 1.0.8.2, GC108PP versiones anteriores a 1.0.8.2, GS108Tv3 versiones anteriores a 7.0.7.2, GS110TPP versiones anteriores a 7.0.7.2, GS110TPv3 versiones anteriores a 7. 0.7.2, GS110TUP versiones anteriores a 1.0.5.3, GS308T versiones anteriores a 1.0.3.2, GS310TP versiones anteriores a 1.0.3.2, GS710TUP versiones anteriores a 1.0.5.3, GS716TP versiones anteriores a 1.0.4. 2, GS716TPP versiones anteriores a 1.0.4.2, GS724TPP versiones anteriores a 2.0.6.3, GS724TPv2 versiones anteriores a 2.0.6.3, GS728TPPv2 versiones anteriores a 6.0.8.2, GS728TPv2 versiones anteriores a 6.0.8. 2, GS750E versiones anteriores a 1.0.1.10, GS752TPP versiones anteriores a 6.0.8.2, GS752TPv2 versiones anteriores a 6.0.8.2, MS510TXM versiones anteriores a 1.0.4.2 y MS510TXUP versiones anteriores a 1.0.4.2

*Credits: N/A
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Adjacent
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-09-13 CVE Reserved
  • 2021-09-13 CVE Published
  • 2024-05-29 EPSS Updated
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Netgear
Search vendor "Netgear"
Gc108p Firmware
Search vendor "Netgear" for product "Gc108p Firmware"
< 1.0.8.2
Search vendor "Netgear" for product "Gc108p Firmware" and version " < 1.0.8.2"
-
Affected
in Netgear
Search vendor "Netgear"
Gc108p
Search vendor "Netgear" for product "Gc108p"
--
Safe
Netgear
Search vendor "Netgear"
Gc108pp Firmware
Search vendor "Netgear" for product "Gc108pp Firmware"
< 1.0.8.2
Search vendor "Netgear" for product "Gc108pp Firmware" and version " < 1.0.8.2"
-
Affected
in Netgear
Search vendor "Netgear"
Gc108pp
Search vendor "Netgear" for product "Gc108pp"
--
Safe
Netgear
Search vendor "Netgear"
Gs108t Firmware
Search vendor "Netgear" for product "Gs108t Firmware"
< 7.0.7.2
Search vendor "Netgear" for product "Gs108t Firmware" and version " < 7.0.7.2"
-
Affected
in Netgear
Search vendor "Netgear"
Gs108tv3
Search vendor "Netgear" for product "Gs108tv3"
--
Safe
Netgear
Search vendor "Netgear"
Gs110tpp Firmware
Search vendor "Netgear" for product "Gs110tpp Firmware"
< 7.0.7.2
Search vendor "Netgear" for product "Gs110tpp Firmware" and version " < 7.0.7.2"
-
Affected
in Netgear
Search vendor "Netgear"
Gs110tpp
Search vendor "Netgear" for product "Gs110tpp"
--
Safe
Netgear
Search vendor "Netgear"
Gs110tp Firmware
Search vendor "Netgear" for product "Gs110tp Firmware"
< 7.0.7.2
Search vendor "Netgear" for product "Gs110tp Firmware" and version " < 7.0.7.2"
-
Affected
in Netgear
Search vendor "Netgear"
Gs110tp
Search vendor "Netgear" for product "Gs110tp"
v3
Search vendor "Netgear" for product "Gs110tp" and version "v3"
-
Safe
Netgear
Search vendor "Netgear"
Gs110tup Firmware
Search vendor "Netgear" for product "Gs110tup Firmware"
< 1.0.5.3
Search vendor "Netgear" for product "Gs110tup Firmware" and version " < 1.0.5.3"
-
Affected
in Netgear
Search vendor "Netgear"
Gs110tup
Search vendor "Netgear" for product "Gs110tup"
--
Safe
Netgear
Search vendor "Netgear"
Gs308t Firmware
Search vendor "Netgear" for product "Gs308t Firmware"
< 1.0.3.2
Search vendor "Netgear" for product "Gs308t Firmware" and version " < 1.0.3.2"
-
Affected
in Netgear
Search vendor "Netgear"
Gs308t
Search vendor "Netgear" for product "Gs308t"
--
Safe
Netgear
Search vendor "Netgear"
Gs310tp Firmware
Search vendor "Netgear" for product "Gs310tp Firmware"
< 1.0.3.2
Search vendor "Netgear" for product "Gs310tp Firmware" and version " < 1.0.3.2"
-
Affected
in Netgear
Search vendor "Netgear"
Gs310tp
Search vendor "Netgear" for product "Gs310tp"
--
Safe
Netgear
Search vendor "Netgear"
Gs710tup Firmware
Search vendor "Netgear" for product "Gs710tup Firmware"
< 1.0.5.3
Search vendor "Netgear" for product "Gs710tup Firmware" and version " < 1.0.5.3"
-
Affected
in Netgear
Search vendor "Netgear"
Gs710tup
Search vendor "Netgear" for product "Gs710tup"
--
Safe
Netgear
Search vendor "Netgear"
Gs716tp Firmware
Search vendor "Netgear" for product "Gs716tp Firmware"
< 1.0.4.2
Search vendor "Netgear" for product "Gs716tp Firmware" and version " < 1.0.4.2"
-
Affected
in Netgear
Search vendor "Netgear"
Gs716tp
Search vendor "Netgear" for product "Gs716tp"
--
Safe
Netgear
Search vendor "Netgear"
Gs716tpp Firmware
Search vendor "Netgear" for product "Gs716tpp Firmware"
< 1.0.4.2
Search vendor "Netgear" for product "Gs716tpp Firmware" and version " < 1.0.4.2"
-
Affected
in Netgear
Search vendor "Netgear"
Gs716tpp
Search vendor "Netgear" for product "Gs716tpp"
--
Safe
Netgear
Search vendor "Netgear"
Gs724tpp Firmware
Search vendor "Netgear" for product "Gs724tpp Firmware"
< 2.0.6.3
Search vendor "Netgear" for product "Gs724tpp Firmware" and version " < 2.0.6.3"
-
Affected
in Netgear
Search vendor "Netgear"
Gs724tpp
Search vendor "Netgear" for product "Gs724tpp"
--
Safe
Netgear
Search vendor "Netgear"
Gs724tp Firmware
Search vendor "Netgear" for product "Gs724tp Firmware"
< 2.0.6.3
Search vendor "Netgear" for product "Gs724tp Firmware" and version " < 2.0.6.3"
-
Affected
in Netgear
Search vendor "Netgear"
Gs724tp
Search vendor "Netgear" for product "Gs724tp"
v2
Search vendor "Netgear" for product "Gs724tp" and version "v2"
-
Safe
Netgear
Search vendor "Netgear"
Gs728tpp Firmware
Search vendor "Netgear" for product "Gs728tpp Firmware"
< 6.0.8.2
Search vendor "Netgear" for product "Gs728tpp Firmware" and version " < 6.0.8.2"
-
Affected
in Netgear
Search vendor "Netgear"
Gs728tpp
Search vendor "Netgear" for product "Gs728tpp"
v2
Search vendor "Netgear" for product "Gs728tpp" and version "v2"
-
Safe
Netgear
Search vendor "Netgear"
Gs728tp Firmware
Search vendor "Netgear" for product "Gs728tp Firmware"
< 6.0.8.2
Search vendor "Netgear" for product "Gs728tp Firmware" and version " < 6.0.8.2"
-
Affected
in Netgear
Search vendor "Netgear"
Gs728tp
Search vendor "Netgear" for product "Gs728tp"
v2
Search vendor "Netgear" for product "Gs728tp" and version "v2"
-
Safe
Netgear
Search vendor "Netgear"
Gs750e Firmware
Search vendor "Netgear" for product "Gs750e Firmware"
< 1.0.1.10
Search vendor "Netgear" for product "Gs750e Firmware" and version " < 1.0.1.10"
-
Affected
in Netgear
Search vendor "Netgear"
Gs750e
Search vendor "Netgear" for product "Gs750e"
--
Safe
Netgear
Search vendor "Netgear"
Gs752tpp Firmware
Search vendor "Netgear" for product "Gs752tpp Firmware"
< 6.0.8.2
Search vendor "Netgear" for product "Gs752tpp Firmware" and version " < 6.0.8.2"
-
Affected
in Netgear
Search vendor "Netgear"
Gs752tpp
Search vendor "Netgear" for product "Gs752tpp"
--
Safe
Netgear
Search vendor "Netgear"
Gs752tp Firmware
Search vendor "Netgear" for product "Gs752tp Firmware"
< 6.0.8.2
Search vendor "Netgear" for product "Gs752tp Firmware" and version " < 6.0.8.2"
-
Affected
in Netgear
Search vendor "Netgear"
Gs752tp
Search vendor "Netgear" for product "Gs752tp"
v2
Search vendor "Netgear" for product "Gs752tp" and version "v2"
-
Safe
Netgear
Search vendor "Netgear"
Ms510txm Firmware
Search vendor "Netgear" for product "Ms510txm Firmware"
< 1.0.4.2
Search vendor "Netgear" for product "Ms510txm Firmware" and version " < 1.0.4.2"
-
Affected
in Netgear
Search vendor "Netgear"
Ms510txm
Search vendor "Netgear" for product "Ms510txm"
--
Safe
Netgear
Search vendor "Netgear"
Ms510txup Firmware
Search vendor "Netgear" for product "Ms510txup Firmware"
< 1.0.4.2
Search vendor "Netgear" for product "Ms510txup Firmware" and version " < 1.0.4.2"
-
Affected
in Netgear
Search vendor "Netgear"
Ms510txup
Search vendor "Netgear" for product "Ms510txup"
--
Safe