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CVE-2018-9261

25
FAUCET Score

CVE-2018-9261 describes a heap-based buffer overflow vulnerability in the NBAP dissector of Wireshark versions 2.4.0 to 2.4.5 and 2.2.0 to 2.2.13, which could lead to a crash due to a large loop. This flaw was remediated by preventing self-linking of DCH-IDs in the affected code. With a CVSS score of 7.5 (HIGH), this vulnerability is remotely exploitable with low attack complexity and no user interaction required, potentially causing a denial of service. The EPSS score is low, indicating a minimal likelihood of exploitation. Currently, there is no evidence of active exploitation, and no public exploit code is available on platforms like Metasploit or ExploitDB. Community discussion and media coverage for this CVE are also minimal, suggesting a low level of public attention.

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:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

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
2.94%
Probability of exploitation in next 30 days
EPSS Percentile
85.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0294 is in the 74th percentile among its peer group of 51,485 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-2018-9261Low

wireshark: NBAP dissector crash in epan/dissectors/packet-nbap.c

Mar 2, 2018

References

bugs.wireshark.org / bugzilla/show_bug.cgi
ExploitIssue TrackingVendor Advisory
code.wireshark.org / review/gitweb
lists.debian.org / debian-lts-announce/2018/05/msg00019.html
Mailing ListThird Party Advisory
debian.org / security/2018/dsa-4217
Third Party Advisory
wireshark.org / security/wnpa-sec-2018-18.html
Vendor Advisory