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CVE-2018-9256

24
FAUCET Score

CVE-2018-9256 describes a denial-of-service vulnerability in Wireshark versions 2.4.0-2.4.5 and 2.2.0-2.2.13, where a specially crafted LWAPP packet could cause the dissector to crash due to excessive recursion. This high-severity vulnerability (CVSS 7.5) is network-exploitable with low complexity, requiring no user interaction or privileges, and primarily impacts availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.2.0, <= 2.2.13CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
>= 2.4.0, <= 2.4.5CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.34%
Probability of exploitation in next 30 days
EPSS Percentile
81.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0234 is in the 68th 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 Advisories (1)

redhatCVE-2018-9256Low

wireshark: stack overflow via crafted LWAPP Layer 3 Packet

Mar 2, 2018

References

bugs.wireshark.org / bugzilla/show_bug.cgi
ExploitIssue Tracking
code.wireshark.org / review/gitweb
lists.debian.org / debian-lts-announce/2019/01/msg00010.html
Mailing ListThird Party Advisory
wireshark.org / security/wnpa-sec-2018-20.html
Vendor Advisory