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TI-2023-13280 Aliases CVE-2023-28770GHSA-jwcx-m84w-h98g

Information disclosure in Zyxel DX5401-B0 firmware

Priority HIGH 72CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.

Summary

The sensitive information exposure vulnerability in the CGI “Export_Log” and the binary “zcmd” in Zyxel DX5401-B0 firmware versions prior to V5.17(ABYO.1)C0 could allow a remote unauthenticated attacker to read the system files and to retrieve the password of the supervisor from the encrypted file.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.57778 99th percentileScored 2026-11-07
Fix Fixed DX5401-B0 firmware (Zyxel): V5.17(ABYO.1)C0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ZyxelDX5401-B0 firmwarebefore V5.17(ABYO.1)C0V5.17(ABYO.1)C0Patch availableCNA
  • DX5401-B0 firmware VendorZyxel Affected before V5.17(ABYO.1)C0 Fixed in V5.17(ABYO.1)C0 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:zyxel:dx5401-b0_firmware:*:*:*:*:*:*:*:*before 5.17\(abyo.1\)c0VulnerableZyxel
cpe:2.3:h:zyxel:dx5401-b0:-:*:*:*:*:*:*:*not specified by NVDRunning onZyxel
  • cpe:2.3:o:zyxel:dx5401-b0_firmware:*:*:*:*:*:*:*:* Versions before 5.17\(abyo.1\)c0 Vulnerable ·Zyxel
  • cpe:2.3:h:zyxel:dx5401-b0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Zyxel

Remediation

  • Fix · CNA DX5401-B0 firmware (Zyxel) Fixed in V5.17(ABYO.1)C0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-28770
  2. 2026-10-03 Alias added: GHSA-jwcx-m84w-h98g

References

Advisory 1

Other 1

  • TI-2023-13279 Buffer overflow in Zyxel DX5401-B0 firmware CVSS 3.1CRITICAL 9.8
  • TI-2025-07956 OS command injection in Zyxel DX3300-T0 firmware CVSS 3.1HIGH 8.8
  • TI-2022-21188 OS command injection in Zyxel NR7101 firmware CVSS 3.1HIGH 8.8
  • TI-2024-05028 Buffer overflow in Zyxel VMG8825-T50K firmware CVSS 3.1HIGH 7.5
  • TI-2025-05994 Uncontrolled resource consumption in Zyxel DX3301-T0 firmware CVSS 3.1HIGH 7.5
  • TI-2024-08115 Buffer overflow in Zyxel VMG8825-T50K firmware CVSS 3.1HIGH 7.5
See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences