Vulnerability Name:

CVE-2021-38526 (CCN-204049)

Assigned:2021-06-17
Published:2021-06-17
Updated:2021-08-18
Summary:Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects RAX35 before 1.0.3.94, RAX38 before 1.0.3.94, and RAX40 before 1.0.3.94.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
4.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
3.8 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
3.3 Low (CCN CVSS v2 Vector: AV:A/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-120
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-38526

Source: XF
Type: UNKNOWN
netgear-routers2-dos(204049)

Source: CCN
Type: NETGEAR Security Advisory: PSV-2020-0416
Security Advisory for Pre-Authentication Buffer Overflow on Some Routers

Source: MISC
Type: Vendor Advisory
https://kb.netgear.com/000063782/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-PSV-2020-0416

Vulnerable Configuration:Configuration 1:
  • cpe:/o:netgear:rax35_firmware:*:*:*:*:*:*:*:* (Version < 1.0.3.94)
  • AND
  • cpe:/h:netgear:rax35:-:*:*:*:*:*:*:*

  • Configuration 2:
  • cpe:/o:netgear:rax38_firmware:*:*:*:*:*:*:*:* (Version < 1.0.3.94)
  • AND
  • cpe:/h:netgear:rax38:-:*:*:*:*:*:*:*

  • Configuration 3:
  • cpe:/o:netgear:rax40_firmware:*:*:*:*:*:*:*:* (Version < 1.0.3.94)
  • AND
  • cpe:/h:netgear:rax40:-:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/h:netgear:rax40:-:*:*:*:*:*:*:*
  • OR cpe:/h:netgear:rax35:-:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    netgear rax35 firmware *
    netgear rax35 -
    netgear rax38 firmware *
    netgear rax38 -
    netgear rax40 firmware *
    netgear rax40 -
    netgear rax40 -
    netgear rax35 -