CVE-2018-18227

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

3.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 86.9% 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:3.0/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

Moderate. 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

2018-10-12 05:00Z7 YR AGO

Last updated

2024-08-05 11:01Z2 YR AGO

Reserved

2018-10-10

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase
• CWE-20Improper Input ValidationClass

Data version

5.1

Document digest

d3cd8df8c5ef2555b7cbd6938b4ce27dab993048035297d7b8c9b05a21e783ce

• bugs.wireshark.orghttps://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15119x_refsource_MISC
• www.wireshark.orghttps://www.wireshark.org/security/wnpa-sec-2018-47.htmlx_refsource_MISC
• www.securitytracker.com1041909http://www.securitytracker.com/id/1041909vdb-entryx_refsource_SECTRACK
• www.securityfocus.com105583http://www.securityfocus.com/bid/105583vdb-entryx_refsource_BID
• code.wireshark.orghttps://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=d443be449a52f95df5754adc39e1f3472fec2f03x_refsource_MISC
• www.debian.orgDSA-4359https://www.debian.org/security/2018/dsa-4359vendor-advisoryx_refsource_DEBIAN
• lists.opensuse.orgopenSUSE-SU-2020:0362http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.htmlvendor-advisoryx_refsource_SUSE
• www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2020.htmlx_refsource_MISC