CVE-2018-14463

The VRRP parser in tcpdump before 4.9.3 has a buffer over-read in print-vrrp.c:vrrp_print() for VRRP version 2, a different vulnerability than CVE-2019-15167.

Published: 2019-10-03 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-14463 is rated High Risk (65.7/100): CVSS High severity, with high exploitation likelihood (EPSS 4.72%, 91th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +3.99% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-14463

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.73% 4.72% +3.99%
2 2026-06-10 0.62% 0.73% +0.11%
3 2025-11-21 — 0.62% —

Full EPSS history (22 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-14463

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2018-14463

OS Trackers for CVE-2018-14463

vendor priority summary link
alpine high CVE-2018-14463: 1 source package rows (tcpdump); 20 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 10. https://security.alpinelinux.org/vuln/CVE-2018-14463
debian not yet assigned CVE-2018-14463 not yet assigned priority: Debian including 1 source packages (tcpdump), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-14463
redhat low — https://access.redhat.com/security/cve/CVE-2018-14463
suse medium CVE-2018-14463 severity moderate: SUSE including 245 source package names (10.1-2.2.74:tcpdump-4.9.2-3.9.1, 10.1-4.1:tcpdump-4.9.2-3.9.1, …), 307 product×package rows across 77 product lines (Container suse/sle-micro/5.0/toolbox, Container suse/sle-micro/5.1/toolbox, … (77 product lines)): Known Affected 157, Fixed 150. https://www.suse.com/security/cve/CVE-2018-14463/
ubuntu medium CVE-2018-14463 medium priority: Ubuntu including 1 source packages (tcpdump), 6 status rows across 6 suites (bionic, disco, eoan, trusty, upstream, xenial): released 4, ignored 1, not-affected 1. https://ubuntu.com/security/CVE-2018-14463

Affected software / configurations for CVE-2018-14463

Vendor Product Version Raw CPE
tcpdump tcpdump < 4.9.3 cpe:2.3:a:tcpdump:tcpdump:*:*:*:*:*:*:*:*
f5 traffix_signaling_delivery_controller >= 5.0.0, <= 5.1.0 cpe:2.3:a:f5:traffix_signaling_delivery_controller:*:*:*:*:*:*:*:*
apple mac_os_x < 10.15.2 cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
fedoraproject fedora 29 cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
fedoraproject fedora 30 cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
fedoraproject fedora 31 cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
opensuse leap 15.0 cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
opensuse leap 15.1 cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
redhat enterprise_linux 7.0 cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
redhat enterprise_linux 8.0 cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

References for CVE-2018-14463

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00050.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00053.html Third Party Advisory
http://seclists.org/fulldisclosure/2019/Dec/26 Mailing List Third Party Advisory
https://github.com/the-tcpdump-group/tcpdump/blob/tcpdump-4.9/CHANGES Release Notes Third Party Advisory
https://github.com/the-tcpdump-group/tcpdump/commit/3de07c772166b7e8e8bb4b9d1d078f1d901b570b Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00015.html Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62XY42U6HY3H2APR5EHNWCZ7SAQNMMJN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNYXF3IY2X65IOD422SA6EQUULSGW7FN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R2UDPOSGVJQIYC33SQBXMDXHH4QDSDMU/
https://seclists.org/bugtraq/2019/Dec/23 Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Oct/28 Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20200120-0001/
https://support.apple.com/kb/HT210788 Third Party Advisory
https://usn.ubuntu.com/4252-1/
https://usn.ubuntu.com/4252-2/
https://www.debian.org/security/2019/dsa-4547 Third Party Advisory
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