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TI-2026-00620 Aliases CVE-2026-0839GHSA-55hm-v7vp-29ch

UTT 进取 520W APSecurity strcpy buffer overflow

Priority HIGH 73CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

A weakness has been identified in UTT 进取 520W 1.7.7-180627. Affected is the function strcpy of the file /goform/APSecurity. Executing a manipulation of the argument wepkey1 can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01076 65th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
UTT进取 520W1.7.7-180627—No fix listedCNA
  • 进取 520W VendorUTT Affected 1.7.7-180627 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:utt:520w_firmware:*:*:*:*:*:*:*:*up to 1.7.7-180627VulnerableUTT
cpe:2.3:h:utt:520w:3.0:*:*:*:*:*:*:*3.0Running onUTT
  • cpe:2.3:o:utt:520w_firmware:*:*:*:*:*:*:*:* Versions up to 1.7.7-180627 Vulnerable ·UTT
  • cpe:2.3:h:utt:520w:3.0:*:*:*:*:*:*:* Versions 3.0 Running on ·UTT

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-0839
  2. 2026-10-03 Alias added: GHSA-55hm-v7vp-29ch

References

Exploit 1

  • TI-2026-23835 A remote command execution (RCE) vulnerability in the /goform/formDia component of UTT… CVSS 3.1CRITICAL 9.8
  • TI-2026-01725 UTT 进取 520W formPolicyRouteConf strcpy buffer overflow CVSS 4.0HIGH 8.7
  • TI-2026-01723 UTT 进取 520W formSyslogConf strcpy buffer overflow CVSS 4.0HIGH 8.7
  • TI-2026-01722 UTT 进取 520W formTimeGroupConfig strcpy buffer overflow CVSS 4.0HIGH 8.7
  • TI-2026-01721 UTT 进取 520W formIpGroupConfig strcpy buffer overflow CVSS 4.0HIGH 8.7
  • TI-2026-00868 UTT 进取 520W ConfigExceptAli strcpy buffer overflow CVSS 4.0HIGH 8.7
See all 25 →

Sources

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