Security readout for executives and security teams
Plain-English summary
CVE-2026-3202 is a Wireshark crash vulnerability. An affected Wireshark user analyzing certain NTS-KE protocol data could have the application crash, causing denial of service to the analyst’s workstation workflow. Sources do not indicate data theft, privilege escalation, or active exploitation.
Executive priority
Treat as a routine but timely desktop security update for teams using Wireshark. Business risk is operational disruption to analysis workflows, not confirmed compromise. Prioritize environments handling untrusted captures.
Technical view
The issue is a NULL pointer dereference (CWE-476) in the NTS-KE protocol dissector in Wireshark 4.6.0 through 4.6.3. CVSS 3.1 is 4.7: local attack vector, high complexity, no privileges, user interaction required, and availability impact only.
Likely exposure
Exposure is most relevant to security, network, and support teams running Wireshark 4.6.0 to 4.6.3 and opening untrusted packet captures or analyzing traffic containing NTS-KE data. It is not described as a remotely exploitable service-side issue.
Exploitation context
The CVE is not listed in KEV, and the provided sources do not report active exploitation. Successful exploitation requires user interaction and appears limited to crashing Wireshark, not code execution or data compromise.
Researcher notes
Public detail in the bundle is limited. The referenced GitLab issue may require permissions. Avoid assuming exploitability beyond denial of service unless vendor details expand. Track the Wireshark advisory for precise affected and fixed release information.
Mitigation direction
- Inventory Wireshark installations and identify versions 4.6.0 through 4.6.3.
- Review the Wireshark advisory for the vendor-designated fixed version.
- Update Wireshark according to Wireshark Foundation guidance.
- Limit opening untrusted packet captures on affected versions until updated.
Validation and detection
- Confirm installed Wireshark versions on analyst workstations and shared analysis systems.
- Check whether affected teams process untrusted captures or NTS-KE traffic.
- Verify remediation against the Wireshark security advisory.
- Review crash reports for Wireshark dissector failures if relevant.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-476: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-3202 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H13.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.7MediumVector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wireshark.org/security/wnpa-sec-2026-06.htmlCVE reference
- GitLab Issue #21000CVE reference · issue-tracking, permissions-required
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
NULL Pointer Dereference
NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.