CVE-2018-16451

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

4.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 89.9% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2019-10-03 15:57Z6 YR AGO

Last updated

2025-12-03 19:29Z9 MO AGO

Reserved

2018-09-03

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

c3273987331bb13d340efc7d3b04a55b1420f404277d91b15262d6f086a2b8ab

• github.comhttps://github.com/the-tcpdump-group/tcpdump/blob/tcpdump-4.9/CHANGESx_refsource_MISC
• github.comhttps://github.com/the-tcpdump-group/tcpdump/commit/96480ab95308cd9234b4f09b175ebf60e17792c6x_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20191011 [SECURITY] [DLA 1955-1] tcpdump security updatehttps://lists.debian.org/debian-lts-announce/2019/10/msg00015.htmlmailing-listx_refsource_MLIST
• lists.opensuse.orgopenSUSE-SU-2019:2344http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00050.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2019:2348http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00053.htmlvendor-advisoryx_refsource_SUSE
• seclists.org20191021 [SECURITY] [DSA 4547-1] tcpdump security updatehttps://seclists.org/bugtraq/2019/Oct/28mailing-listx_refsource_BUGTRAQ
• www.debian.orgDSA-4547https://www.debian.org/security/2019/dsa-4547vendor-advisoryx_refsource_DEBIAN
• lists.fedoraproject.orgFEDORA-2019-85d92df70fhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R2UDPOSGVJQIYC33SQBXMDXHH4QDSDMU/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2019-d06bc63433https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNYXF3IY2X65IOD422SA6EQUULSGW7FN/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2019-6db0d5b9d9https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62XY42U6HY3H2APR5EHNWCZ7SAQNMMJN/vendor-advisoryx_refsource_FEDORA
• support.apple.comhttps://support.apple.com/kb/HT210788x_refsource_CONFIRM
• seclists.org20191211 APPLE-SA-2019-12-10-3 macOS Catalina 10.15.2, Security Update 2019-002 Mojave, Security Update 2019-007 High Sierrahttps://seclists.org/bugtraq/2019/Dec/23mailing-listx_refsource_BUGTRAQ
• seclists.org20191213 APPLE-SA-2019-12-10-3 macOS Catalina 10.15.2, Security Update 2019-002 Mojave, Security Update 2019-007 High Sierrahttp://seclists.org/fulldisclosure/2019/Dec/26mailing-listx_refsource_FULLDISC
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20200120-0001/x_refsource_CONFIRM
• usn.ubuntu.comUSN-4252-2https://usn.ubuntu.com/4252-2/vendor-advisoryx_refsource_UBUNTU
• usn.ubuntu.comUSN-4252-1https://usn.ubuntu.com/4252-1/vendor-advisoryx_refsource_UBUNTU