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CVE-2023-4512

22
FAUCET Score

CVE-2023-4512 describes a denial-of-service vulnerability in Wireshark versions 4.0.0 through 4.0.6, where a crafted CBOR packet or capture file can cause the dissector to crash. With a CVSS score of 7.5 (HIGH), this vulnerability is easily exploitable over the network with no user interaction required, leading to a complete loss of availability for the affected Wireshark instance. Currently, there is no public exploit code available, nor is there any evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.0.0, < 4.0.8CPE match
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
>= 4.0.0, <= 4.0.7CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
1.8
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.49%
Probability of exploitation in next 30 days
EPSS Percentile
39.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0049 is in the 17th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (2)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: wireshark
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: wireshark

Vendor Advisories (1)

redhatCVE-2023-4512Moderate

wireshark: DoS (crash) via packet injection or crafted capture file

Aug 24, 2023

References

lists.debian.org / debian-lts-announce/2024/09/msg00049.html
lists.fedoraproject.org / archives/list/[email protected]/message/6HCUPLDY7HLPO46PHMGIJSUBJFTT237C
lists.fedoraproject.org / archives/list/[email protected]/message/L4AVRUYSHDNEAJILVSGY5W6MPOMG2YRF
lists.fedoraproject.org / archives/list/[email protected]/message/TRKHFQPWFU7F3OXTL6IEIQSJG6FVXZTZ
gitlab.com / wireshark/wireshark/-/issues/19144
ExploitIssue TrackingPatch
wireshark.org / security/wnpa-sec-2023-23.html
Issue TrackingVendor Advisory