[UPDATE] [medium] Wireshark: Multiple vulnerabilities allow Denial of Service
A local attacker can exploit multiple vulnerabilities in Wireshark to conduct a Denial of Service attack.
CSIRTS triage
- What
- Multiple vulnerabilities allow a local attacker to conduct a Denial of Service attack.
- Who is affected
- Deployments of Wireshark are affected by these vulnerabilities.
- Urgency
- Remediation is important due to the potential for Denial of Service, although exploitation has not been reported.
- Action
- Update to the latest version of Wireshark.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0536
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-32010.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all scored CVEs.
- Low exploitation riskCVE-2026-32020.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all scored CVEs.
- Low exploitation riskCVE-2026-32030.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-3201 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-3202 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-3203 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Wireshark
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- high[UPDATE] [high] Wireshark: Multiple Vulnerabilitiescert-bund · 2026-07-17
- medium[UPDATE] [medium] Wireshark: Vulnerability allows Denial of Servicecert-bund · 2026-07-17
- medium[NEW] [medium] Wireshark: Multiple vulnerabilitiescert-bund · 2026-07-15
- unknownMultiple vulnerabilities in Wireshark (July 09, 2026)cert-fr-avis · 2026-07-09
- lowCVE-2026-15168: BLF file parser in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows possible information di…nvd · 2026-07-08
- mediumCVE-2026-15174: Catapult DCT2000 protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allo…nvd · 2026-07-08
More from CERT-Bund (BSI) Security Advisories
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-31
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- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities2026-07-31
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow unspecified attack2026-07-31