CVE-2018-21118: netgear xr500_firmware Improper Authentication
CVSS: 8.8v3.0HighModified
Published 22-04-2020Last modified 05-08-2024
Vulnerability summary
CVE-2018-21118 is a high (CVSS 8.8) Improper Authentication vulnerability in netgear xr500_firmware. EPSS estimates a 0.70% chance of exploitation in the next 30 days, higher than 52.2% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.0 (CVE.org)EPSS score
0.70%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 22-04-2020PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
NETGEAR XR500 devices before 2.3.2.32 are affected by authentication bypass.
CVSS metrics
4 scores · 2 sources · 3 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 8.8Preferred score · CVE.org (CNA)
CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:U/UI:NSourcesAll 2 agree
- NVDNIST8.8HighCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Medium 5.8Preferred score · NVD (NIST)
AV:A/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.70%
Chance of exploitation in the next 30 days
Percentile
52%
Versus all other CVEs
30-day change
0.00 pp
From 0.70% on 18-09-2026
18-09-202618-10-2026
EPSS score0.70%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Netgear1 product
- xr500_firmware< 2.3.2.32
1 vendor · 1 product
References
1 links- kb.netgear.com/000060240/Security-Advisory-for-Authentication-Bypass-on-XR500-PSV-2018-0324X Refsource CONFIRMVendor Advisory