CVE-2026-4620: nec platforms, ltd. aterm wx1500hp OS Command Injection
CVSS: 9.8v3.1CriticalAnalyzed
Published 27-03-2026Last modified 10-04-2026
Vulnerability summary
CVE-2026-4620 is a critical (CVSS 9.8) OS Command Injection vulnerability in nec platforms, ltd. aterm wx1500hp. EPSS estimates a 1.22% chance of exploitation in the next 30 days, higher than 68.2% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
1.22%
0%100%
Low · +0.23 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 27-03-2026PublishedVulnerability first disclosed.
- 10-04-2026Last modifiedVulnerability information updated.
Description
OS Command Injection vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to execute arbitrary OS commands via network.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.1Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NSourcesAll 2 agree
- NVDNIST7.1HighCVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Critical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
EPSS trend
Probability
1.22%
Chance of exploitation in the next 30 days
Percentile
68%
Versus all other CVEs
30-day change
+0.23 pp
From 1.00% on 19-09-2026
19-09-202619-10-2026
EPSS score1.22%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Nec2 products
- aterm_wx1500hp_firmware< 1.4.2
- aterm_wx3600hp_firmware< 1.5.3
Nec platforms, ltd.2 products
- aterm wx1500hp< Ver. 1.4.2
- aterm wx3600hp< Ver. 1.4.2
2 vendors · 4 products
References
1 links- jpn.nec.com/security-info/secinfo/nv26-001_en.htmlVendor Advisory