CVE-2021-45546
CVE-2021-45546 is a high-severity vulnerability in Netgear R7850 Firmware with a CVSS 3.x base score of 8.4. 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-77.
Key facts
- Severity: High (CVSS 3.x base score 8.4)
- CVSS v2: 6.5
- EPSS exploit prediction: 1% (71st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-77
- Affected product: Netgear R7850 Firmware
- Published:
- Last modified:
Description
Certain NETGEAR devices are affected by command injection by an authenticated user. This affects R7850 before 1.0.5.74, R7900P before 1.4.2.84, R7960P before 1.4.2.84, R8000 before 1.0.4.74, R8000P before 1.4.2.84, RAX200 before 1.0.4.120, RAX75 before 1.0.4.120, RAX80 before 1.0.4.120, RBK752 before 3.2.17.12, RBK852 before 3.2.17.12, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, and RBS850 before 3.2.17.12.
Frequently asked questions
- What is CVE-2021-45546?
- Certain NETGEAR devices are affected by command injection by an authenticated user. This affects R7850 before 1.0.5.74, R7900P before 1.4.2.84, R7960P before 1.4.2.84, R8000 before 1.0.4.74, R8000P before 1.4.2.84, RAX200 before 1.0.4.120, RAX75 before 1.0.4.120, RAX80 before 1.0.4.120, RBK752 before 3.2.17.12, RBK852 before 3.2.17.12, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, and RBS850 before 3.2.17.12.
- How severe is CVE-2021-45546?
- CVE-2021-45546 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-45546 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-45546?
- CVE-2021-45546 primarily affects Netgear R7850 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-2021-45546?
- 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-2021-45546 published?
- CVE-2021-45546 was published on 2021-12-26 and last updated on 2026-06-17.
References
Affected products (14)
- cpe:2.3:o:netgear:r7850_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:r7900p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:r7960p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:r8000_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:r8000p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:rax200_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:rax75_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:rax80_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:rbk752_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:rbr750_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:netgear:rbs750_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Netgear R7850 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-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…
- CVE-2021-45620 — Critical (CVSS 9.6): Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before…
- CVE-2021-45616 — Critical (CVSS 9.6): Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR750 before…
All CVEs affecting Netgear R7850 Firmware →
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