When was CVE-2023-1993 disclosed?

CVE-2023-1993 was first published in the National Vulnerability Database on April 12, 2023, with the most recent update on November 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-1993 actively exploited?

CVE-2023-1993 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 52.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-1993?

CVE-2023-1993 has a CVSS v3 base score of 6.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 6.5.

How do I remediate CVE-2023-1993?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-1993, 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.

CVE-2023-1993

MEDIUMNVD 6.36.5▲

6.3

LISP dissector large loop in Wireshark 4.0.0 to 4.0.4 and 3.6.0 to 3.6.12 allows denial of service via packet injection or crafted capture file

CVSS v3: 6.3
EG Score: 6.5(medium)
EPSS: 52.4%
KEV: Not listed

References (19)

cve@gitlabhttps://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-1993.json
cve@gitlabhttps://gitlab.com/wireshark/wireshark/-/issues/18900
cve@gitlabhttps://lists.debian.org/debian-lts-announce/2023/04/msg00029.html
cve@gitlabhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EHLTD25WNQSPQNELX52UH6YLP4TBLKTT/
cve@gitlabhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZA7IMATNNQPLIM6WMRPM3T5ZY24NRR2/
cve@gitlabhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PFJERBHVWYLYWXO2B3V47QH66IEB6EZ3/
cve@gitlabhttps://security.gentoo.org/glsa/202309-02
cve@gitlabhttps://www.debian.org/security/2023/dsa-5429
cve@gitlabhttps://www.wireshark.org/security/wnpa-sec-2023-10.html
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-1993.json
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/wireshark/wireshark/-/issues/18900
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/04/msg00029.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/09/msg00049.html
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EHLTD25WNQSPQNELX52UH6YLP4TBLKTT/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZA7IMATNNQPLIM6WMRPM3T5ZY24NRR2/

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CVE-2023-1993

Published

Last Modified

References (19)

Weakness Classification(1)

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-1993?

CVE-2023-1993

📅 Published

🔄 Last Modified

🔗 References (19)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-1993?

Published

Last Modified

References (19)

Frequently asked(5)