CVE-2020-36997
BacklinkSpeed 2.4 - Buffer Overflow PoC (SEH)
- State
- Published
- Severity
- 8.4 High
- Published
- Jan 29, 2026
- Updated
- May 12, 2026
- Reserved
- Jan 27, 2026
Description
BacklinkSpeed 2.4 contains a buffer overflow vulnerability that allows attackers to corrupt the Structured Exception Handler (SEH) chain through malicious file import. Attackers can craft a specially designed payload file to overwrite SEH addresses, potentially executing arbitrary code and gaining control of the application.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.4 High | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-121 Stack-based Buffer Overflow
Affected Products
| Product | Versions |
|---|---|
BacklinkSpeedDummysoftware |
|
References
- ExploitDB-48726exploit
- Vendor Homepageproduct
- Software Download Pageproduct
- VulnCheck Advisory: BacklinkSpeed 2.4 - Buffer Overflow PoC (SEH)third-party-advisory
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