Raw vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2026-3202 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Wireshark Wireshark. Its CVSS base score is 4.7 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Endpoint Denial of Service (T1499); ranked at the 5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-15 (Development Process, Standards, and Tools) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2026-3202 affects the NTS-KE protocol dissector in Wireshark versions 4.6.0 through 4.6.3, causing a crash that enables denial of service. Published on 2026-02-25, the vulnerability stems from CWE-476 (NULL Pointer Dereference) and carries a CVSS v3.1 base score of 4.7 (AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H).
An attacker with local access can exploit this vulnerability by crafting malicious input, such as a packet capture file containing malformed NTS-KE traffic, and tricking a user into opening or dissecting it in Wireshark. The attack demands high complexity and user interaction but requires no privileges, resulting solely in high-impact availability disruption through application crash, with no confidentiality or integrity effects.
Mitigation details are available in the Wireshark security advisory at https://www.wireshark.org/security/wnpa-sec-2026-06.html and the associated GitLab issue at https://gitlab.com/wireshark/wireshark/-/issues/21000.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-8661
Vulnerability Data
NTS-KE protocol dissector crash in Wireshark 4.6.0 to 4.6.3 allows denial of service
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Developer testing and evaluation (including static analysis) directly finds null-dereference bugs before deployment.
Documented development standards and tools can enforce null-safety rules and safe pointer usage.
Engineering principles can mandate defensive coding such as explicit null checks before dereference.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure SDLC practices (static analysis, code review, safe coding standards) directly prevent NULL dereference bugs during development.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Security testing can detect NULL dereference defects before release.
Secure SDLC mandates defensive coding practices that can prevent NULL dereferences.
Application security requirements can specify input validation and pointer-safety rules.
Secure architecture principles encourage defensive design that avoids unsafe pointer use.
Secure coding standards directly require NULL-pointer checks and safe dereference patterns.