How severe is CVE-2026-5656?

CVE-2026-5656 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-5656 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5656?

CVE-2026-5656 affects Wireshark. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5656?

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-2026-5656 have an EU (EUVD) identifier?

Yes. CVE-2026-5656 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26463.

When was CVE-2026-5656 published?

CVE-2026-5656 was published on 2026-05-01 and last updated on 2026-06-30.

CVE-2026-5656

CVE-2026-5656 is a high-severity vulnerability in Wireshark with a CVSS 3.x base score of 7.0. 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.0)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26463
Weakness: CWE-22
Affected product: Wireshark
Published: 2026-05-01
Last modified: 2026-06-30

Description

Profile import path traversal in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution

Frequently asked questions

What is CVE-2026-5656?: Profile import path traversal in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution
How severe is CVE-2026-5656?: CVE-2026-5656 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-5656 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5656?: CVE-2026-5656 affects Wireshark. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5656?: 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-2026-5656 have an EU (EUVD) identifier?: Yes. CVE-2026-5656 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26463.
When was CVE-2026-5656 published?: CVE-2026-5656 was published on 2026-05-01 and last updated on 2026-06-30.

References

Affected products (1)

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

More vulnerabilities in Wireshark

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CVE-2009-1266 — Critical (CVSS 10.0): Unspecified vulnerability in Wireshark before 1.0.7 has unknown impact and attack vectors.
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CVE-2008-3146 — Critical (CVSS 10.0): Multiple buffer overflows in packet_ncp2222.inc in Wireshark (formerly Ethereal) 0.9.7 through 1.0.2 allow attackers to…

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