CVE-2026-4309: nec platforms, ltd. aterm gb1200pe Missing Authorization
CVSS: 6.5v3.1MediumAnalyzed
Published 27-03-2026Last modified 10-04-2026
Vulnerability summary
CVE-2026-4309 is a medium (CVSS 6.5) Missing Authorization vulnerability in nec platforms, ltd. aterm gb1200pe. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13.1% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
0.23%
0%100%
Low · +0.09 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
Missing Authorization vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to get a specific device information and change the settings via network.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 6.3Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:NSourcesAll 2 agree
- NVDNIST6.3MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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
Medium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NSourcesSingle source
EPSS trend
Probability
0.23%
Chance of exploitation in the next 30 days
Percentile
13%
Versus all other CVEs
30-day change
+0.09 pp
From 0.14% on 19-09-2026
19-09-202619-10-2026
EPSS score0.23%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Nec platforms, ltd.24 products
- aterm gb1200pe< Ver. 1.3.1
- aterm gx1200hpAll versions (No fix recorded)
- aterm gx1200hs4All versions (No fix recorded)
- aterm w1200ex(-ms)All versions (No fix recorded)
- aterm wf1200cr< Ver. 1.6.0
Nec9 products
- aterm_wf1200cr_firmware< 1.6.0
- aterm_wg1200cr_firmware< 1.5.0
- aterm_wg2600hm4_firmware< 1.4.2
- aterm_wg2600hp4_firmware< 1.4.2
- aterm_wg2600hs_firmware< 1.7.2
2 vendors · 33 products
References
1 links- jpn.nec.com/security-info/secinfo/nv26-001_en.htmlVendor Advisory