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CVE-2018-14461

25
FAUCET Score

CVE-2018-14461 describes a buffer over-read vulnerability in the LDP parser of tcpdump versions prior to 4.9.3, impacting various Linux distributions and Apple products. This high-severity vulnerability (CVSS 7.5) can be exploited remotely without user interaction, leading to a denial of service. While no public exploit code or active exploitation has been observed, and community discussion is minimal, organizations should prioritize patching to mitigate the risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.9.3CPE matchmatch criteria
cpe:2.3:a:tcpdump:tcpdump:*:*:*:*:*:*:*:*
< 10.15.2CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
3.98%
Probability of exploitation in next 30 days
EPSS Percentile
89.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0398 is in the 81st percentile among its peer group of 51,553 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

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: tcpdump-14:4.9.3-1.el8
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: tcpdump

Vendor Advisories (1)

redhatCVE-2018-14461Low

tcpdump: Buffer over-read in ldp_tlv_print() function in print-ldp.c

Oct 2, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-10/msg00050.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2019-10/msg00053.html
Third Party Advisory
seclists.org / fulldisclosure/2019/Dec/26
Mailing ListThird Party Advisory
github.com / the-tcpdump-group/tcpdump/blob/tcpdump-4.9/CHANGES
Release NotesThird Party Advisory
github.com / the-tcpdump-group/tcpdump/commit/aa5c6b710dfd8020d2c908d6b3bd41f1da719b3b
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2019/10/msg00015.html
Third Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/62XY42U6HY3H2APR5EHNWCZ7SAQNMMJN
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/FNYXF3IY2X65IOD422SA6EQUULSGW7FN
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/R2UDPOSGVJQIYC33SQBXMDXHH4QDSDMU
seclists.org / bugtraq/2019/Dec/23
Mailing ListThird Party Advisory
seclists.org / bugtraq/2019/Oct/28
Mailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20200120-0001
support.apple.com / kb/HT210788
Third Party Advisory
usn.ubuntu.com / 4252-1
usn.ubuntu.com / 4252-2
debian.org / security/2019/dsa-4547
Third Party Advisory