How severe is CVE-2021-29080?

CVE-2021-29080 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2021-29080 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-29080?

CVE-2021-29080 primarily affects Netgear Rbk852 Firmware. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-29080?

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

When was CVE-2021-29080 published?

CVE-2021-29080 was published on 2021-03-23 and last updated on 2026-06-17.

CVE-2021-29080

CVE-2021-29080 is a high-severity vulnerability in Netgear Rbk852 Firmware with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-640.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 4.8
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-640
Affected product: Netgear Rbk852 Firmware
Published: 2021-03-23
Last modified: 2026-06-17

Description

Certain NETGEAR devices are affected by password reset by an unauthenticated attacker. This affects RBK852 before 3.2.10.11, RBK853 before 3.2.10.11, RBR854 before 3.2.10.11, RBR850 before 3.2.10.11, RBS850 before 3.2.10.11, CBR40 before 2.5.0.10, R7000 before 1.0.11.116, R6900P before 1.3.2.126, R7900 before 1.0.4.38, R7960P before 1.4.1.66, R8000 before 1.0.4.66, R7900P before 1.4.1.66, R8000P before 1.4.1.66, RAX75 before 1.0.3.102, RAX80 before 1.0.3.102, and R7000P before 1.3.2.126.

Frequently asked questions

What is CVE-2021-29080?: Certain NETGEAR devices are affected by password reset by an unauthenticated attacker. This affects RBK852 before 3.2.10.11, RBK853 before 3.2.10.11, RBR854 before 3.2.10.11, RBR850 before 3.2.10.11, RBS850 before 3.2.10.11, CBR40 before 2.5.0.10, R7000 before 1.0.11.116, R6900P before 1.3.2.126, R7900 before 1.0.4.38, R7960P before 1.4.1.66, R8000 before 1.0.4.66, R7900P before 1.4.1.66, R8000P before 1.4.1.66, RAX75 before 1.0.3.102, RAX80 before 1.0.3.102, and R7000P before 1.3.2.126.
How severe is CVE-2021-29080?: CVE-2021-29080 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2021-29080 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-29080?: CVE-2021-29080 primarily affects Netgear Rbk852 Firmware. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-29080?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-29080 published?: CVE-2021-29080 was published on 2021-03-23 and last updated on 2026-06-17.

References

https://kb.netgear.com/000063007/Security-Advisory-for-Pre-authentication-Password-Reset-on-Some-Routers-and-WiFi-Systems-PSV-2019-0150

Affected products (16)

cpe:2.3:o:netgear:rbk852_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbk853_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbr854_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbr850_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbs850_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:cbr40_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6900p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r7900_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r7960p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r8000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r7900p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r8000p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax75_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax80_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r7000p_firmware:*:*:*:*:*:*:*:*

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