CVE-2026-6519
published 2026-04-30CVE-2026-6519: MBIM protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
PriorityP335high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.17%
6.7th percentile
MBIM protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| gitlab | wireshark | — | — |
| wireshark | wireshark | — | — |
| wireshark | wireshark | 4.4.0 – 4.4.14 | — |
| wireshark | wireshark | 4.6.0 – 4.6.4 | — |
| wireshark_foundation | wireshark | >= 4.4.0 < 4.4.15 | 4.4.15 |
| wireshark_foundation | wireshark | >= 4.6.0 < 4.6.5 | 4.6.5 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vendor_redhat7.5HIGH
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GitLab
Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark
vendor_gitlab·2026-04-30·CVSS 5.5
CVE-2026-6519 [MEDIUM] CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark
Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark
MBIM protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
Affected products: Wireshark
Affected versions: >=4.6.0, =4.4.0, <4.4.15 (affected)
Solution: Upgrade to version 4.6.5 or above
Credit: Sharon Brizinov
Red Hat
Wireshark: Wireshark: Denial of Service via MBIM protocol dissector infinite loop
vendor_redhat·2026-04-30·CVSS 7.5
CVE-2026-6519 [HIGH] CWE-835 Wireshark: Wireshark: Denial of Service via MBIM protocol dissector infinite loop
Wireshark: Wireshark: Denial of Service via MBIM protocol dissector infinite loop
A flaw was found in Wireshark. A remote attacker could exploit an infinite loop vulnerability within the MBIM (Mobile Broadband Interface Model) protocol dissector. This could lead to a denial of service (DoS) condition, making the application unresponsive.
Mitigation: To mitigate this issue, avoid opening untrusted capture files in Wireshark. Additionally, the MBIM protocol dissector can be disabled to prevent processing of potentially malicious MBIM data. This can be achieved by navigating to `Analyze -> Enabled Protocols...` in Wireshark and unchecking the "MBIM" protocol, or by starting Wireshark from the command line with `-d mbim==FALSE`. Disabling the dissector may impact the ability to analyze legit
GHSA
GHSA-7prr-p9gf-r8p8: MBIM protocol dissector infinite loop in Wireshark 4
ghsa_unreviewed·2026-04-30
CVE-2026-6519 [MEDIUM] CWE-835 GHSA-7prr-p9gf-r8p8: MBIM protocol dissector infinite loop in Wireshark 4
MBIM protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-6519 wireshark: Wireshark: Denial of Service via MBIM protocol dissector infinite loop [fedora-all]
bugzilla·2026-05-04·CVSS 7.5
CVE-2026-6519 [HIGH] CVE-2026-6519 wireshark: Wireshark: Denial of Service via MBIM protocol dissector infinite loop [fedora-all]
CVE-2026-6519 wireshark: Wireshark: Denial of Service via MBIM protocol dissector infinite loop [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-6519 Wireshark: Wireshark: Denial of Service via MBIM protocol dissector infinite loop
bugzilla·2026-04-30·CVSS 7.5
CVE-2026-6519 [HIGH] CVE-2026-6519 Wireshark: Wireshark: Denial of Service via MBIM protocol dissector infinite loop
CVE-2026-6519 Wireshark: Wireshark: Denial of Service via MBIM protocol dissector infinite loop
MBIM protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
2026-04-30
Published