Wireshark patches multiple RCE and DoS flaws
CERT-FR advisory details 19 CVEs in Wireshark before 4.4.19/4.6.9 allowing remote code execution and denial of service.
Sourcecert.ssi.gouv.fr — open the original
What to check
- Applies to
- The 19 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
CERT-FR has published an advisory covering multiple vulnerabilities discovered in Wireshark, the widely used network protocol analyzer. The flaws affect Wireshark versions 4.4.x prior to 4.4.19 and 4.6.x prior to 4.6.9, and collectively allow an attacker to trigger remote code execution or remote denial of service, likely through processing of malicious packet captures or crafted network traffic parsed by vulnerable dissectors.
The advisory references 19 separate CVE identifiers and links to 19 corresponding Wireshark security bulletins (wnpa-sec-2026-92 through 110), indicating the issues span multiple protocol dissectors or components rather than a single root cause. No detail on individual dissectors, exploitation vectors, or active exploitation is provided in the advisory itself; defenders should consult the linked Wireshark bulletins for per-CVE specifics.
No in-the-wild exploitation is indicated. Given Wireshark's common use in security operations, incident response, and network engineering, organizations should update to 4.4.19 or 4.6.9 (or later) promptly, particularly on systems where Wireshark is used to open untrusted or externally-sourced capture files, which is the typical exploitation path for this class of vulnerability.
Mentioned in this report
Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1221
Free public brief. Slack alerts on the vendors you run come with the paid plans, and a new account gets three days of them, no card.
What this brief leaves out
This page is the free tier: the write-up, the severity, the names. In the app the same report carries live profiles of the CVEs it names. The paid plans add the security research and news reporting the free tier leaves out.
It sits in a corpus of 16,436 reports from 149 sources, 661 of them written in the last seven days, and it grows through the day.
A new account starts with three days of all of it, no card, then keeps the government and CERT reporting free. Slack alerts are a paid-plan feature: name the vendors you run and Slack hears about the reports that touch them, not the rest of the week's. Nothing is charged unless you subscribe.
Create a free account What it costs