Stack-Based Buffer Overflow in D-Link DIR-619L Router
CVE-2026-4188

8.7HIGH

Key Information:

Vendor

D-link
Status
Dir-619l
Vendor
CVE Published:
15 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-4188?

A security flaw has been identified in the D-Link DIR-619L router version 2.06B01, specifically within the formSchedule function of the boa component. This vulnerability arises from improper handling of the curTime argument, leading to a stack-based buffer overflow that can be exploited remotely. The public release of the exploit poses significant risks, particularly as the affected product is no longer supported by the vendor, leaving it vulnerable to attacks.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

DIR-619L 2.06B01

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-4188 - Proof of Concept

References

https://vuldb.com/?id.351094
vdb-entrytechnical-description
https://vuldb.com/?ctiid.351094
signaturepermissions-required
https://vuldb.com/?submit.769833
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

pjqwudi (VulDB User)
JSON
.