How severe is CVE-2007-6439?

CVE-2007-6439 has a CVSS 2.0 base score of 6.1, rated medium severity.

Is CVE-2007-6439 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-6439?

CVE-2007-6439 affects Wireshark. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-6439?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2007-6439 published?

CVE-2007-6439 was published on 2007-12-19 and last updated on 2026-06-16.

CVE-2007-6439

CVE-2007-6439 is a medium-severity vulnerability in Wireshark with a CVSS 2.0 base score of 6.1. 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-399.

Key facts

Severity: Medium (CVSS 2.0 base score 6.1)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Wireshark
Published: 2007-12-19
Last modified: 2026-06-16

Description

Wireshark (formerly Ethereal) 0.99.6 allows remote attackers to cause a denial of service (infinite or large loop) via the (1) IPv6 or (2) USB dissector, which can trigger resource consumption or a crash. NOTE: this identifier originally included Firebird/Interbase, but it is already covered by CVE-2007-6116. The DCP ETSI issue is already covered by CVE-2007-6119.

Frequently asked questions

What is CVE-2007-6439?: Wireshark (formerly Ethereal) 0.99.6 allows remote attackers to cause a denial of service (infinite or large loop) via the (1) IPv6 or (2) USB dissector, which can trigger resource consumption or a crash. NOTE: this identifier originally included Firebird/Interbase, but it is already covered by CVE-2007-6116. The DCP ETSI issue is already covered by CVE-2007-6119.
How severe is CVE-2007-6439?: CVE-2007-6439 has a CVSS 2.0 base score of 6.1, rated medium severity.
Is CVE-2007-6439 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-6439?: CVE-2007-6439 affects Wireshark. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-6439?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-6439 published?: CVE-2007-6439 was published on 2007-12-19 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:wireshark:wireshark:0.99.6:*:*:*:*:*:*:*

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