How severe is CVE-2023-35704?

CVE-2023-35704 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-35704 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-35704?

CVE-2023-35704 affects Tonybybell Gtkwave. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-35704?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-35704 have an EU (EUVD) identifier?

Yes. CVE-2023-35704 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-39703.

When was CVE-2023-35704 published?

CVE-2023-35704 was published on 2024-01-08 and last updated on 2026-06-17.

CVE-2023-35704

CVE-2023-35704 is a high-severity vulnerability in Tonybybell Gtkwave with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-39703
Weakness: CWE-787
Affected product: Tonybybell Gtkwave
Published: 2024-01-08
Last modified: 2026-06-17

Description

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 fstReaderVarint32WithSkip function.

Frequently asked questions

What is CVE-2023-35704?: 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 fstReaderVarint32WithSkip function.
How severe is CVE-2023-35704?: CVE-2023-35704 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-35704 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-35704?: CVE-2023-35704 affects Tonybybell Gtkwave. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-35704?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-35704 have an EU (EUVD) identifier?: Yes. CVE-2023-35704 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-39703.
When was CVE-2023-35704 published?: CVE-2023-35704 was published on 2024-01-08 and last updated on 2026-06-17.

References

Affected products (1)

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

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CVE-2023-39444 — High (CVSS 7.8): Multiple out-of-bounds write vulnerabilities exist in the LXT2 parsing functionality of GTKWave 3.3.115. A…
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