How severe is CVE-2021-45678?

CVE-2021-45678 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-45678 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45678?

CVE-2021-45678 affects Netgear Rax200 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45678?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-45678 published?

CVE-2021-45678 was published on 2021-12-26 and last updated on 2026-06-17.

CVE-2021-45678

CVE-2021-45678 is a critical-severity vulnerability in Netgear Rax200 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Netgear Rax200 Firmware
Published: 2021-12-26
Last modified: 2026-06-17

Description

NETGEAR RAX200 devices before 1.0.5.132 are affected by insecure code.

Frequently asked questions

What is CVE-2021-45678?: NETGEAR RAX200 devices before 1.0.5.132 are affected by insecure code.
How severe is CVE-2021-45678?: CVE-2021-45678 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-45678 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45678?: CVE-2021-45678 affects Netgear Rax200 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45678?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-45678 published?: CVE-2021-45678 was published on 2021-12-26 and last updated on 2026-06-17.

References

https://kb.netgear.com/000064171/Security-Advisory-for-Updates-on-the-RAX200-PSV-2021-0192

Affected products (1)

cpe:2.3:o:netgear:rax200_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Netgear Rax200 Firmware

CVE-2021-29068 — Critical (CVSS 9.9): Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects R6700v3 before…
CVE-2023-36187 — Critical (CVSS 9.8): Buffer Overflow vulnerability in NETGEAR R6400v2 before version 1.0.4.118, allows remote unauthenticated attackers to…
CVE-2021-45617 — Critical (CVSS 9.8): Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before…
CVE-2020-35795 — Critical (CVSS 9.8): Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects AC2100 before…
CVE-2021-45622 — Critical (CVSS 9.6): Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before…
CVE-2021-45621 — Critical (CVSS 9.6): Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before…

All CVEs affecting Netgear Rax200 Firmware →