Is CVE-2023-2855 in the CISA KEV catalog?

No. CVE-2023-2855 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-2855?

CVE-2023-2855 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2023-2855?

CVE-2023-2855 has an EPSS score of 1.65% (74th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-2855?

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-2023-2855

MEDIUMEPSS 74th pctl

5.3

CVSS v3

NVD

Description

Candump log parser crash in Wireshark 4.0.0 to 4.0.5 and 3.6.0 to 3.6.13 allows denial of service via crafted capture file

CWE-787Out-of-bounds Write

How to fix

Remediation Available

wiresharkDebian

Fixed in:3.4.16-0+deb11u1CVE-2023-2855

Fixed in:4.0.6-1~deb12u1CVE-2023-2855

Fixed in:4.0.6-1CVE-2023-2855

wiresharkRed Hat / RHEL

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

wiresharkRocky

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

wireshark-cliRocky

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

wireshark-cliRed Hat / RHEL

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

wireshark-cli-debuginfoRocky

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

wireshark-cli-debuginfoRed Hat / RHEL

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

wireshark-debuginfoRed Hat / RHEL

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

wireshark-debuginfoRocky

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

wireshark-debugsourceRocky

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

wireshark-debugsourceRed Hat / RHEL

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

wireshark-develRocky

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

wireshark-develRed Hat / RHEL

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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

1.65%probability of exploitation in 30 days

74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Patch1

gitlab.com

Vendor Advisory1

wireshark.org

Third-Party Advisory3

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	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.