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TI-2019-15732 Aliases CVE-2019-25679GHSA-6g5p-8cx2-hpcp

RealTerm Serial Terminal 2.0.0.70 Buffer Overflow SEH

Priority HIGH 72CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
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-787 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00327 25th 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
RealtermRealTerm: Serial Terminal1.11.2—No fix listedCNA
  • RealTerm: Serial Terminal VendorRealterm Affected 1.11.2 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:crun:realterm:2.0.0.70:*:*:*:*:*:*:*2.0.0.70VulnerableRealterm
  • cpe:2.3:a:crun:realterm:2.0.0.70:*:*:*:*:*:*:* Versions 2.0.0.70 Vulnerable ·Realterm

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-25679
  2. 2026-10-03 Alias added: GHSA-6g5p-8cx2-hpcp

References

Exploit 1

Other 2

  • TI-2019-15622 RealTerm Serial Terminal 2.0.0.70 SEH Overflow Crash CVSS 4.0MEDIUM 6.9
  • TI-2019-15623 RealTerm Serial Terminal 2.0.0.70 Denial of Service via Port Field CVSS 4.0MEDIUM 6.8

Sources

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