CVE-2021-45637: Buffer Overflow
First published: Sun Dec 26 2021(Updated: )
Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects R6260 before 1.1.0.76, R6800 before 1.2.0.62, R6700v2 before 1.2.0.62, R6900v2 before 1.2.0.62, R7450 before 1.2.0.62, AC2100 before 1.2.0.62, AC2400 before 1.2.0.62, and AC2600 before 1.2.0.62.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Netgear R6260 Firmware | <1.1.0.76 | |
| NETGEAR R6260 | ||
| Netgear R6800 Firmware | <1.2.0.62 | |
| Netgear R6800 | ||
| Netgear R6700v2 Firmware | <1.2.0.62 | |
| NETGEAR R6700v2 | ||
| Netgear R6900v2 Firmware | <1.2.0.62 | |
| Netgear R6900v2 | ||
| Netgear R7450 Firmware | <1.2.0.62 | |
| NETGEAR R7450 | ||
| Netgear Ac2100 Firmware | <1.2.0.62 | |
| Netgear Ac2100 | ||
| Netgear Ac2400 Firmware | <1.2.0.62 | |
| Netgear Ac2400 | ||
| Netgear Ac2600 Firmware | <1.2.0.62 | |
| Netgear Ac2600 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-45637?
CVE-2021-45637 is a vulnerability affecting certain NETGEAR devices, allowing an unauthenticated attacker to execute a stack-based buffer overflow.
Which NETGEAR devices are affected by CVE-2021-45637?
CVE-2021-45637 affects the following NETGEAR devices: R6260 before 1.1.0.76, R6800 before 1.2.0.62, R6700v2 before 1.2.0.62, R6900v2 before 1.2.0.62, R7450 before 1.2.0.62, AC2100 before 1.2.0.62, AC2400 before 1.2.0.62, and AC2600 before 1.2.0.62.
What is the severity of CVE-2021-45637?
The severity of CVE-2021-45637 is rated as critical, with a CVSS score of 9.8.
How can an attacker exploit CVE-2021-45637?
An unauthenticated attacker can exploit CVE-2021-45637 by executing a stack-based buffer overflow on vulnerable NETGEAR devices.
Where can I find more information about CVE-2021-45637?
You can find more information about CVE-2021-45637 in the security advisory published by NETGEAR at the following link: [https://kb.netgear.com/000064059/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-PSV-2019-0081](https://kb.netgear.com/000064059/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-PSV-2019-0081)
- collector/nvd-index
- agent/author
- agent/severity
- agent/references
- agent/weakness
- agent/type
- agent/description
- agent/event
- agent/softwarecombine
- agent/first-publish-date
- agent/last-modified-date
- agent/remedy
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/netgear
- canonical/netgear r6260 firmware
- canonical/netgear r6260
- canonical/netgear r6800 firmware
- canonical/netgear r6800
- canonical/netgear r6700v2 firmware
- canonical/netgear r6700v2
- canonical/netgear r6900v2 firmware
- canonical/netgear r6900v2
- canonical/netgear r7450 firmware
- canonical/netgear r7450
- canonical/netgear ac2100 firmware
- canonical/netgear ac2100
- canonical/netgear ac2400 firmware
- canonical/netgear ac2400
- canonical/netgear ac2600 firmware
- canonical/netgear ac2600