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CVE Record

CVE-2018-14462: The ICMP parser in tcpdump before 4.9.3 has a buffer over-read in print-icmp.c:icmp_print().

The ICMP parser in tcpdump before 4.9.3 has a buffer over-read in print-icmp.c:icmp_print().

HighCVSS 7.5Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

tcpdump versions before 4.9.3 can read past a buffer while decoding ICMP traffic. For the business, this is mainly an availability risk: a monitoring, troubleshooting, or security appliance using vulnerable tcpdump could crash when processing malicious network data. Exposure is likely where tcpdump before 4.9.3 is installed or embedded, especially on packet capture, monitoring, forensic, or network troubleshooting systems that parse ICMP traffic or packet captures from untrusted networks. Treat this as a high-priority patching item for network monitoring and troubleshooting infrastructure. It is not presented as actively exploited, but exposed packet-processing tools can fail at critical times if left vulnerable. Mitigation focus: Upgrade tcpdump to 4.9.3 or a vendor-supported fixed package.; Prioritize systems parsing untrusted network traffic or shared packet captures.; Apply relevant Debian, Fedora, openSUSE, Ubuntu, Apple, or vendor advisories where applicable..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-125: Exact CWE lookup

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cve · low confidence lookup

CVE-2018-14462 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.5 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
14Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2018-14462Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-125 · source CWE mapping

Out-of-bounds Read

Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.