synced 11 MIN AGO
01 Record

CVE-2018-17156

In FreeBSD before 11.2-STABLE(r340268) and 11.2-RELEASE-p5, due to incorrectly accounting for padding on 64-bit platforms, a buffer underwrite could occur when constructing an ICMP reply packet when

UnratedPUBLISHEDCNA: freebsd
CNA base scoreUnratedNo CNA CVSS vector
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02 Description

In FreeBSD before 11.2-STABLE(r340268) and 11.2-RELEASE-p5, due to incorrectly accounting for padding on 64-bit platforms, a buffer underwrite could occur when constructing an ICMP reply packet when

03 Exploitation and scoring

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
1.62% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 75.7% of scored records. A rank, not a probability.
NVD base score
5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:N/AC:H/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
No Red Hat rating. Red Hat rates the CVEs that affect its products.

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.

04 Metadata

Published
2018-11-28 16:00Z7 YR AGO
Last updated
2024-08-05 10:39Z2 YR AGO
Reserved
2018-09-18
Assigning CNA
freebsd
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
Data version
5.1
Document digest
43646ca76d8422e4046a02349d9ecad59246977ef72d1783a328616640d49851

05 Affected products

VendorProductVersionsPlatforms
FreeBSDFreeBSDFreeBSD 11.2 before 11.2-RELEASE-p5—

06 References