CVE-2018-21200: netgear r7800_firmware Out-of-bounds Write
CVSS: 6.8v3.0MediumModified
Published 28-04-2020Last modified 05-08-2024
Vulnerability summary
CVE-2018-21200 is a medium (CVSS 6.8) Out-of-bounds Write vulnerability in netgear r7800_firmware. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 47.6% of scored vulnerabilities.
CVSS score
6.8/10
010
Medium · v3.0 (CVE.org)EPSS score
0.60%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 28-04-2020PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects R7800 before 1.0.2.40 and R9000 before 1.0.3.6.
CVSS metrics
4 scores · 2 sources · 3 versionsMedium 6.8Preferred score · NVD (NIST)
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
Medium 6.8Preferred score · CVE.org (CNA)
CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:NSourcesAll 2 agree
- NVDNIST6.8MediumCVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Medium 5.2Preferred score · NVD (NIST)
AV:A/AC:L/Au:S/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.60%
Chance of exploitation in the next 30 days
Percentile
48%
Versus all other CVEs
30-day change
0.00 pp
From 0.60% on 18-09-2026
18-09-202618-10-2026
EPSS score0.60%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Netgear2 products
- r7800_firmware< 1.0.2.40
- r9000_firmware< 1.0.3.6
1 vendor · 2 products