How severe is CVE-2020-35802?

CVE-2020-35802 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-35802 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-35802?

CVE-2020-35802 primarily affects Netgear Cbr40 Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-35802?

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-2020-35802 published?

CVE-2020-35802 was published on 2020-12-30 and last updated on 2026-06-17.

CVE-2020-35802

CVE-2020-35802 is a high-severity vulnerability in Netgear Cbr40 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Netgear Cbr40 Firmware
Published: 2020-12-30
Last modified: 2026-06-17

Description

Certain NETGEAR devices are affected by disclosure of sensitive information. This affects CBR40 before 2.5.0.14, RBW30 before 2.6.1.4, RAX75 before 1.0.3.102, RAX80 before 1.0.3.102, RBK752 before 3.2.16.6, RBR750 before 3.2.16.6, RBS750 before 3.2.16.6, RBK852 before 3.2.16.6, RBR850 before 3.2.16.6, RBS850 before 3.2.16.6, RBK842 before 3.2.16.6, RBR840 before 3.2.16.6, RBS840 before 3.2.16.6, and RBS40V before 2.6.1.4.

Frequently asked questions

What is CVE-2020-35802?: Certain NETGEAR devices are affected by disclosure of sensitive information. This affects CBR40 before 2.5.0.14, RBW30 before 2.6.1.4, RAX75 before 1.0.3.102, RAX80 before 1.0.3.102, RBK752 before 3.2.16.6, RBR750 before 3.2.16.6, RBS750 before 3.2.16.6, RBK852 before 3.2.16.6, RBR850 before 3.2.16.6, RBS850 before 3.2.16.6, RBK842 before 3.2.16.6, RBR840 before 3.2.16.6, RBS840 before 3.2.16.6, and RBS40V before 2.6.1.4.
How severe is CVE-2020-35802?: CVE-2020-35802 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-35802 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-35802?: CVE-2020-35802 primarily affects Netgear Cbr40 Firmware. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-35802?: 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-2020-35802 published?: CVE-2020-35802 was published on 2020-12-30 and last updated on 2026-06-17.

References

https://kb.netgear.com/000062720/Security-Advisory-for-Sensitive-Information-Disclosure-on-Some-Routers-and-WiFi-Systems-PSV-2020-0331

Affected products (14)

cpe:2.3:o:netgear:cbr40_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbw30_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax75_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rax80_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbk752_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbr750_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbs750_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbk852_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbr850_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbs850_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbk842_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbr840_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbs840_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:rbs840v_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Netgear Cbr40 Firmware

CVE-2021-45630 — Critical (CVSS 10.0): Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before…
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-2021-45631 — Critical (CVSS 9.6): Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before…

All CVEs affecting Netgear Cbr40 Firmware →