CVE-2023-35703 - Vulnerability Details - OpenCVE

Multiple stack-based buffer overflow vulnerabilities exist in the FST LEB128 varint 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 fstReaderVarint64 function.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00046.

Exploitation poc

Automatable no

Technical Impact total

Vendors	Products
Tonybybell	Gtkwave

Configuration 1 [-]

cpe:2.3:a:tonybybell:gtkwave:3.3.115:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
Debian DLA	DLA-3785-1	gtkwave security update
Debian DSA	DSA-5653-1	gtkwave security update
EUVD	EUVD-2023-39702	Multiple stack-based buffer overflow vulnerabilities exist in the FST LEB128 varint 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 fstReaderVarint64 function.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://lists.debian.org/debian-lts-announce/2024/04/msg00007.html
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1783
https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1783

History

Tue, 04 Nov 2025 19:30:00 +0000

Type	Values Removed	Values Added
References		https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1783

Tue, 17 Jun 2025 21:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: talos

Published: 2024-01-08T14:48:01.249Z

Updated: 2025-11-04T18:14:48.753Z

Reserved: 2023-06-15T13:56:19.639Z

Link: CVE-2023-35703

Vulnrichment

Updated: 2024-08-02T16:30:44.464Z

NVD

Status : Modified

Published: 2024-01-08T15:15:09.987

Modified: 2025-11-04T19:15:43.687

Link: CVE-2023-35703

Redhat

No data.

OpenCVE Enrichment

No data.

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