CVE-2019-25679
RealTerm Serial Terminal 2.0.0.70 Buffer Overflow SEH
- State
- Published
- Severity
- 8.5 High
- Published
- Apr 5, 2026
- Updated
- Apr 6, 2026
- Reserved
- Apr 5, 2026
Description
RealTerm Serial Terminal 2.0.0.70 contains a structured exception handling (SEH) buffer overflow vulnerability in the Echo Port tab that allows local attackers to execute arbitrary code by supplying a malicious payload. Attackers can craft a buffer overflow payload with a POP POP RET gadget chain and shellcode that triggers code execution when pasted into the Port field and the Change button is clicked.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.5 High | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
RealTerm: Serial TerminalRealterm |
|
References
- ExploitDB-46441exploit
- Official Product Homepageproduct
- Product Referenceproduct
- VulnCheck Advisory: RealTerm Serial Terminal 2.0.0.70 Buffer Overflow SEHthird-party-advisory
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