Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker.

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• netgear r6400 firmwarebefore 1.0.1.24
• netgear r6400 firmwarebefore 1.0.2.32
• netgear r6700 firmwarebefore 1.0.1.22
• netgear r6900 firmwarebefore 1.0.1.22
• netgear r6900p firmwarebefore 1.0.0.56
• netgear r7000 firmwarebefore 1.0.9.4
• netgear r7000p firmwarebefore 1.0.0.56
• netgear r7100lg firmwarebefore 1.0.0.32
• netgear r7300 firmwarebefore 1.0.0.54
• netgear r7900 firmwarebefore 1.0.1.18
• netgear r8300 firmwarebefore 1.0.2.104
• netgear r8500 firmwarebefore 1.0.2.104

Other highest-scoring records for the same primary product.

• CVE-2022-27643This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.9
  43Plan
• CVE-2020-11789Certain NETGEAR devices are affected by command injection by an unauthenticated attacker.
  40Plan
• CVE-2022-27646This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.9
  35Monitor
• CVE-2022-27644This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information on affected installations of NETG
  35Monitor
• CVE-2021-45606Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user.
  35Monitor
• CVE-2021-45605Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user.
  35Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1char buf[256];2memcpy(buf, pkt->data, pkt->len);

1char buf[256];2if (pkt->len > sizeof(buf)) {3  return -EINVAL;4}5memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.