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CVE-2024-39838

HIGH
8.8
CVSS Score
Published: August 5, 2024 at 04:35 AM UTC
Updated: June 17, 2026 at 07:42 AM UTC
2 products affected across 1 vendorZwx 2000CSW2 Hn FirmwareZwx-2000Csw2-Hn

Using ZWX-2000CSW2-HN by ZEXELON CO., LTD.?

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Severity
HIGH8.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

ZWX-2000CSW2-HN firmware versions prior to Ver.0.3.15 uses hard-coded credentials, which may allow a network-adjacent attacker with an administrative privilege to alter the configuration of the device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Zwx 2000CSW2 Hn Firmware· Zexelon
95%
v < 0.3.15firmware versions prior to Ver.0.3.15
Affected range stops below 0.3.15, so it looks safe — our inference, not a vendor statement
zexelon-zwx-2000csw2-hn (same device)
Zwx-2000Csw2-Hn· Zexelondevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Third Party Advisory
Source: [email protected]
https://jvn.jp/en/jp/JVN70666401/
Vendor Advisory
Source: [email protected]
https://www.zexelon.co.jp/pdf/jvn70666401.pdf

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-798

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