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TI-2026-04921 Aliases CVE-2026-5613GHSA-r63g-w8j9-9fqc

Belkin F9K1015 formReboot stack-based 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 vulnerability was identified in Belkin F9K1015 1.00.10. This issue affects the function formReboot of the file /goform/formReboot. The manipulation of the argument webpage leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit is publicly available and might be used. 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 0.00699 53rd 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
BelkinF9K10151.00.10—No fix listedCNA
  • F9K1015 VendorBelkin Affected 1.00.10 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:belkin:f9k1015_firmware:1.00.10:*:*:*:*:*:*:*1.00.10VulnerableBelkin
cpe:2.3:h:belkin:f9k1015:-:*:*:*:*:*:*:*not specified by NVDRunning onBelkin
  • cpe:2.3:o:belkin:f9k1015_firmware:1.00.10:*:*:*:*:*:*:* Versions 1.00.10 Vulnerable ·Belkin
  • cpe:2.3:h:belkin:f9k1015:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Belkin

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-5613
  2. 2026-10-03 Alias added: GHSA-r63g-w8j9-9fqc

References

Exploit 1

  • TI-2026-04937 Belkin F9K1015 formSetFirewall stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-04936 Belkin F9K1015 Setting formSetSystemSettings stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-04922 Belkin F9K1015 formSetPassword stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-04920 Belkin F9K1015 formWlEncrypt stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-04919 Belkin F9K1015 formCrossBandSwitch stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-04918 Belkin F9K1015 formWISP5G stack-based overflow CVSS 4.0HIGH 8.7
See all 18 →

Sources

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