CVE-2018-21100
CVE-2018-21100 is a high-severity vulnerability in Netgear R7800 Firmware with a CVSS 3.x base score of 8.0. 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-78.
Key facts
- Severity: High (CVSS 3.x base score 8.0)
- CVSS v2: 5.2
- EPSS exploit prediction: 1% (55th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Netgear R7800 Firmware
- Published:
- Last modified:
Description
NETGEAR R7800 devices before 1.0.2.60 are affected by command injection by an authenticated user.
Frequently asked questions
- What is CVE-2018-21100?
- NETGEAR R7800 devices before 1.0.2.60 are affected by command injection by an authenticated user.
- How severe is CVE-2018-21100?
- CVE-2018-21100 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-21100 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-21100?
- CVE-2018-21100 affects Netgear R7800 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-21100?
- 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-2018-21100 published?
- CVE-2018-21100 was published on 2020-04-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*
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