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CVE-2018-16300

26
FAUCET Score

CVE-2018-16300 describes a stack consumption vulnerability in the BGP parser of tcpdump versions prior to 4.9.3, specifically within the print-bgp.c:bgp_attr_print() function due to unlimited recursion. This vulnerability carries a CVSS score of 7.5 (HIGH), indicating a network-exploitable flaw with low attack complexity that can lead to high availability impact (denial of service). There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.9.3CPE matchmatch criteria
cpe:2.3:a:tcpdump:tcpdump:*:*:*:*:*:*:*:*

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
4.12%
Probability of exploitation in next 30 days
EPSS Percentile
89.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0412 is in the 82nd 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

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-2018-16300Low

tcpdump: Resource exhaustion in bgp_attr_print() function in print-bgp.c

Oct 2, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-10/msg00050.html
lists.opensuse.org / opensuse-security-announce/2019-10/msg00053.html
seclists.org / fulldisclosure/2019/Dec/26
github.com / the-tcpdump-group/tcpdump/blob/tcpdump-4.9/CHANGES
Release NotesThird Party Advisory
github.com / the-tcpdump-group/tcpdump/commit/af2cf04a9394c1a56227c2289ae8da262828294a
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2019/10/msg00015.html
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
seclists.org / bugtraq/2019/Oct/28
security.netapp.com / advisory/ntap-20200120-0001
support.apple.com / kb/HT210788
usn.ubuntu.com / 4252-1
usn.ubuntu.com / 4252-2
debian.org / security/2019/dsa-4547