Is CVE-2023-1993 in the CISA KEV catalog?

No. CVE-2023-1993 is not currently on the CISA Known Exploited Vulnerabilities list.

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

CVE-2023-1993 has a CVSS v3 base score of 6.3 (MEDIUM).

What is the EPSS score for CVE-2023-1993?

CVE-2023-1993 has an EPSS score of 4.09% (89th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-1993?

Upgrade wireshark on debian 11 to 3.4.16-0+deb11u1 or later.

CVE & CISA-KEV Catalog

CVE-2023-1993

MEDIUMEPSS 89th pctl

6.3

CVSS v3

NVD

Description

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

CWE-834

How to fix

Remediation Available

wiresharkDebian

Fixed in:3.4.16-0+deb11u1CVE-2023-1993

Fixed in:4.0.6-1~deb12u1CVE-2023-1993

Fixed in:4.0.6-1CVE-2023-1993

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Exploit Intelligence

4.09%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Patch1

gitlab.com

Vendor Advisory1

wireshark.org

Third-Party Advisory4

Other references4

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.