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CVE-2023-2858

21
FAUCET Score

CVE-2023-2858 describes a denial-of-service vulnerability in Wireshark versions 4.0.0 to 4.0.5 and 3.6.0 to 3.6.13, specifically within its NetScaler file parser. An unauthenticated attacker can trigger a crash by providing a specially crafted capture file, leading to a high impact on availability. This medium-severity vulnerability (CVSS 6.5) requires user interaction (UI:R) to open the malicious file. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.6.0, < 3.6.14CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
>= 4.0.0, < 4.0.6CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
12.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*

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
1.77%
Probability of exploitation in next 30 days
EPSS Percentile
75.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0177 is in the 87th percentile among its peer group of 26,234 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: wireshark-1:2.6.2-17.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: wireshark-1:3.4.10-6.el9
View patch

Vendor Advisories (1)

redhatCVE-2023-2858Moderate

wireshark: NetScaler file parser crash

May 17, 2023

References

lists.debian.org / debian-lts-announce/2024/09/msg00049.html
gitlab.com / gitlab-org/cves/-/blob/master/2023/CVE-2023-2858.json
Third Party Advisory
gitlab.com / wireshark/wireshark/-/issues/19081
ExploitIssue TrackingPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2023/06/msg00004.html
Third Party Advisory
security.gentoo.org / glsa/202309-02
Third Party Advisory
debian.org / security/2023/dsa-5429
Third Party Advisory
wireshark.org / security/wnpa-sec-2023-15.html
Vendor Advisory