RTPS dissector memory leak in Wireshark 4.0.0 to 4.0.8 and 3.6.0 to 3.6.16 allows denial of service via packet injection or crafted capture file
CVE-2023-5371
MEDIUMNVD 6.55.3▼
EchelonGraph scoreMEDIUM confidence
Score 5.3 from GitHub Security Advisory published 2023-10-04. NVD baseline CVSS 5.3; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.5
- EG Score
- 5.3(medium)
- EPSS
- 38.4%
- KEV
- Not listed
Published
October 4, 2023
Last Modified
June 17, 2026
References (7)
- cve@gitlabhttps://gitlab.com/wireshark/wireshark/-/issues/19322
- cve@gitlabhttps://www.wireshark.org/security/wnpa-sec-2023-27.html
- af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/wireshark/wireshark/-/issues/19322
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/[email protected]/message/34DBP5P2RHQ7XUABPANYYMOGV5KS6VEP/
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/[email protected]/message/MADSCHKZSCKQ5NLIX3UMOIJD2JZ65L4V/
- af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202402-09
- af854a3a-2127-422b-91ae-364da2661108https://www.wireshark.org/security/wnpa-sec-2023-27.html
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Frequently asked(5)
What is CVE-2023-5371?
CVE-2023-5371 is a medium vulnerability published on October 4, 2023. RTPS dissector memory leak in Wireshark 4.0.0 to 4.0.8 and 3.6.0 to 3.6.16 allows denial of service via packet injection or crafted capture file
When was CVE-2023-5371 disclosed?
CVE-2023-5371 was first published in the National Vulnerability Database on October 4, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-5371 actively exploited?
CVE-2023-5371 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 38.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-5371?
CVE-2023-5371 has a CVSS v3 base score of 6.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 5.3.
How do I remediate CVE-2023-5371?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-5371, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2023-5371
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