What is CVE-2022-27641?

CVE-2022-27641 is a high-severity vulnerability in NETGEAR D7800, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2023-03-29.

How severe is CVE-2022-27641?

High severity. CVSS v3 base score is 8.8 out of 10.

Integer overflow in NETGEAR D7800

CVE-2022-27641

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the NetUSB module. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15806.

Vulnerability class: Integer Overflow

Published 2023-03-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (68.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

kb.netgear.com/000064437/Security-Advisory-for-Pre-Authentication-Buffer-Overfl… (Vendor Advisory)
www.zerodayinitiative.com/advisories/ZDI-22-544/ (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2022-27641?: CVE-2022-27641 is a high-severity vulnerability in NETGEAR D7800, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2023-03-29.
How severe is CVE-2022-27641?: High severity. CVSS v3 base score is 8.8 out of 10.