CVE-2023-4511: Wireshark · Infinite Loop
Affects WiresharkSource CVE Database V5
Not known to be exploited · CVSS 5.3 Medium : upgrade to 4.0.8 or 3.6.16 when convenient.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 39% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 4.0.8, 3.6.16
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 24 Aug 2023
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade wireshark/wireshark to 4.0.8 or 3.6.16.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubwireshark/wiresharkpkg:github/wireshark/wiresharkOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
1. 2. If you cannot patch yet, avoid opening capture files from untrusted or unknown sources, especially those containing Bluetooth traffic. 3. Implement strict file validation and sandboxing when analyzing capture files to limit the impact of potential DoS conditions. 4. Educate SOC and network analysis personnel about the risks of processing unverified capture files and the symptoms of this DoS vulnerability. 5. Use network segmentation and access controls to limit exposure to crafted Bluetooth SDP packets from untrusted devices or networks. 6. Consider alternative tools or versions not affected by this vulnerability for critical analysis tasks if patching is delayed. 7. Employ automated scanning of capture files for anomalous Bluetooth SDP content before analysis. 8. Maintain incident response plans that include recovery procedures for Wireshark service disruptions. These targeted measures go beyond generic advice by focusing on operational controls and user awareness specific to this vulnerability’s exploitation vector.
Description
BT SDP dissector infinite loop in Wireshark 4.0.0 to 4.0.7 and 3.6.0 to 3.6.15 allows denial of service via packet injection or crafted capture file
References
- wireshark.org/security/wnpa-sec-2023-24.html (opens in a new tab)
- gitlab.com/wireshark/wireshark/-/issues/19258 (opens in a new tab)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L4AVRUYSHDNEAJILVSGY5W6MPOMG2YRF/ (opens in a new tab)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6HCUPLDY7HLPO46PHMGIJSUBJFTT237C/ (opens in a new tab)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TRKHFQPWFU7F3OXTL6IEIQSJG6FVXZTZ/ (opens in a new tab)
- lists.debian.org/debian-lts-announce/2024/02/msg00016.html (opens in a new tab)
- lists.debian.org/debian-lts-announce/2024/09/msg00049.html (opens in a new tab)