CVE-2023-35956

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 VCDATA parsing functionality of GTKWave 3.3.115. A specially-crafted .fst file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the decompression function `fastlz_decompress`.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-119

Affected software

VendorProductVersions
GTKWaveGTKWave3.3.115

References

Timeline

Published
Jan 8, 2024
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2023

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CVE-2023-35956: High severity, CVSS 7.8 | Vulnix