PT-2026-30487 · Realterm · Realterm: Serial Terminal

Matteo Malvica · Published 2026-04-05 · Updated 2026-04-05 · CVE-2019-25679

NVD

CVSS v3.1

7.8

High

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2019-25679

Affected Products

Realterm: Serial Terminal

References · 5

• 🔥 https://exploit-db.com/exploits/46441 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2019-25679 · Security Note
• https://vulncheck.com/advisories/realterm-serial-terminal-buffer-overflow-seh · Note
• https://realterm.sourceforge.io · Note
• https://sourceforge.net/projects/realterm/files · Note