CVE-2021-20620: aterm wg2600hp_firmware Cross-site Scripting
CVSS: 6.1v3.1MediumModified
Published 28-01-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-20620 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in aterm wg2600hp_firmware. EPSS estimates a 1.04% chance of exploitation in the next 30 days, higher than 63.5% of scored vulnerabilities.
CVSS score
6.1/10
010
Medium · v3.1 (NVD)EPSS score
1.04%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 28-01-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Cross-site scripting vulnerability in Aterm WF800HP firmware Ver1.0.9 and earlier allows remote attackers to inject an arbitrary script via unspecified vectors.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 6.1Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NSourcesSingle source
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
1.04%
Chance of exploitation in the next 30 days
Percentile
64%
Versus all other CVEs
30-day change
0.00 pp
From 1.04% on 19-09-2026
19-09-202619-10-2026
EPSS score1.04%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Aterm1 product
- wg2600hp_firmware≤ 1.0.9
Nec corporation1 product
- aterm wf800hpAterm WF800HP firmware Ver1.0.9 and earlier
2 vendors · 2 products