FlexHEX 2.71 contains a local buffer overflow vulnerability in the Stream Name field that allows local attackers to execute arbitrary code by triggering a structured exception handler (SEH) overflow. Attackers can craft a malicious text file with carefully aligned shellcode and SEH chain pointers, paste the contents into the Stream Name dialog, and execute arbitrary commands like calc.exe when the exception handler is triggered.
Metrics
Affected Vendors & Products
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History
Wed, 25 Mar 2026 12:00:00 +0000
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Flexhex
Flexhex flexhex |
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Flexhex
Flexhex flexhex |
Tue, 24 Mar 2026 14:15:00 +0000
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ssvc
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Tue, 24 Mar 2026 11:45:00 +0000
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| Description | FlexHEX 2.71 contains a local buffer overflow vulnerability in the Stream Name field that allows local attackers to execute arbitrary code by triggering a structured exception handler (SEH) overflow. Attackers can craft a malicious text file with carefully aligned shellcode and SEH chain pointers, paste the contents into the Stream Name dialog, and execute arbitrary commands like calc.exe when the exception handler is triggered. | |
| Title | FlexHEX 2.71 Local Buffer Overflow via SEH Unicode | |
| Weaknesses | CWE-434 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-03-24T11:27:02.248Z
Updated: 2026-03-24T13:15:20.448Z
Reserved: 2026-03-24T10:59:43.113Z
Link: CVE-2019-25627
Updated: 2026-03-24T13:15:16.254Z
Status : Awaiting Analysis
Published: 2026-03-24T12:16:02.560
Modified: 2026-03-24T15:53:48.067
Link: CVE-2019-25627
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