Is CVE-2023-0666 in the CISA KEV catalog?

No. CVE-2023-0666 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-0666?

CVE-2023-0666 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2023-0666?

CVE-2023-0666 has an EPSS score of 2.26% (81th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-0666?

Upgrade wireshark on debian 11 to 3.4.16-0+deb11u1 or later. Fixes are available for 13 affected products.

CVE & CISA-KEV Catalog

CVE-2023-0666

MEDIUMEPSS 81th pctl

6.5

CVSS v3

NVD

Description

Due to failure in validating the length provided by an attacker-crafted RTPS packet, Wireshark version 4.0.5 and prior, by default, is susceptible to a heap-based buffer overflow, and possibly code execution in the context of the process running Wireshark.

CWE-122Heap-based Buffer Overflow CWE-787Out-of-bounds Write

How to fix

Remediation Available

wiresharkDebian

Fixed in:3.4.16-0+deb11u1CVE-2023-0666

Fixed in:4.0.6-1~deb12u1CVE-2023-0666

Fixed in:4.0.6-1CVE-2023-0666

wiresharkRocky

Fixed in:1:2.6.2-17.el8RHSA-2023:7015

Fixed in:1:3.4.10-6.el9RHSA-2023:6469

wiresharkRed Hat / RHEL

Fixed in:1:2.6.2-17.el8RHSA-2023:7015

Fixed in:1:3.4.10-6.el9RHSA-2023:6469

wireshark-cliRocky

Fixed in:1:2.6.2-17.el8RHSA-2023:7015

Fixed in:1:3.4.10-6.el9RHSA-2023:6469

wireshark-cliRed Hat / RHEL

Fixed in:1:2.6.2-17.el8RHSA-2023:7015

Fixed in:1:3.4.10-6.el9RHSA-2023:6469

wireshark-cli-debuginfoRed Hat / RHEL

Fixed in:1:2.6.2-17.el8RHSA-2023:7015

Fixed in:1:3.4.10-6.el9RHSA-2023:6469

wireshark-cli-debuginfoRocky

Fixed in:1:2.6.2-17.el8RHSA-2023:7015

Fixed in:1:3.4.10-6.el9RHSA-2023:6469

wireshark-debuginfoRocky

Fixed in:1:2.6.2-17.el8RHSA-2023:7015

Fixed in:1:3.4.10-6.el9RHSA-2023:6469

wireshark-debuginfoRed Hat / RHEL

Fixed in:1:2.6.2-17.el8RHSA-2023:7015

Fixed in:1:3.4.10-6.el9RHSA-2023:6469

wireshark-debugsourceRed Hat / RHEL

Fixed in:1:2.6.2-17.el8RHSA-2023:7015

Fixed in:1:3.4.10-6.el9RHSA-2023:6469

wireshark-debugsourceRocky

Fixed in:1:2.6.2-17.el8RHSA-2023:7015

Fixed in:1:3.4.10-6.el9RHSA-2023:6469

wireshark-develRocky

Fixed in:1:2.6.2-17.el8RHSA-2023:7015

Fixed in:1:3.4.10-6.el9RHSA-2023:6469

wireshark-develRed Hat / RHEL

Fixed in:1:2.6.2-17.el8RHSA-2023:7015

Fixed in:1:3.4.10-6.el9RHSA-2023:6469

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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

2.26%probability of exploitation in 30 days

81stpercentile

Elevated risk: more likely to be exploited than 81% of all known CVEs.

References

Exploit2

Vendor Advisory1

wireshark.org

Third-Party Advisory2

Release Notes1

wireshark.org

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-122 (Heap-based Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2024-26256	High	7.8	88%	-	Fix
CVE-2020-25687	Medium	5.9	87%	-	Fix
CVE-2009-3459	High	8.8	86%	KEV	Fix
CVE-2021-21017	High	8.8	86%	KEV	-
CVE-2020-25683	Medium	5.9	86%	-	Fix

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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.