CVE-2026-3203 — Buffer Over-read in Foundation Wireshark

CWE-126 — Buffer Over-read7 documents7 sources
Severity
7.5HIGHNVD
CNA5.5
EPSS
0.0%
top 89.12%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Wireshark Foundation WiresharkWireshark
Timeline
PublishedFeb 25

Description

RF4CE Profile protocol dissector crash in Wireshark 4.6.0 to 4.6.3 and 4.4.0 to 4.4.13 allows denial of service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶NVDwireshark/wireshark4.4.0 — 4.4.14+1
▶CVEListV5wireshark_foundation/wireshark4.6.0 — 4.6.4+1
▶Debianwireshark/wireshark< 4.4.14-0+deb13u1+1

🔴Vulnerability Details

3
OSV
CVE-2026-3203: RF4CE Profile protocol dissector crash in Wireshark 4↗2026-02-25
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GHSA
GHSA-qrr9-2772-633f: RF4CE Profile protocol dissector crash in Wireshark 4↗2026-02-25
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CVEList
Buffer Over-read in Wireshark↗2026-02-25
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📋Vendor Advisories

2
Red Hat
wireshark: Buffer Over-read in Wireshark↗2026-02-25
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Debian
CVE-2026-3203: wireshark - RF4CE Profile protocol dissector crash in Wireshark 4.6.0 to 4.6.3 and 4.4.0 to ...↗2026
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🕵️Threat Intelligence

1
Wiz
CVE-2026-3203 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2026-3203 — Buffer Over-read | cvebase