CVE-2018-16420

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

0.69% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 50.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/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

2018-09-04 00:00Z8 YR AGO

Last updated

2024-08-05 10:24Z2 YR AGO

Reserved

2018-09-03

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.1

Document digest

ffb8040fcd738febfdc39009ff37c2986e282f660fb2a6cdfb7d8ed79ee2222c

• github.comhttps://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-b36536074d13447fbbec061e0e64d15dx_refsource_MISC
• github.comhttps://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1x_refsource_MISC
• www.x41-dsec.dehttps://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/x_refsource_MISC
• access.redhat.comRHSA-2019:2154https://access.redhat.com/errata/RHSA-2019:2154vendor-advisoryx_refsource_REDHAT
• lists.debian.org[debian-lts-announce] 20190911 [SECURITY] [DLA 1916-1] opensc security updatehttps://lists.debian.org/debian-lts-announce/2019/09/msg00009.htmlmailing-listx_refsource_MLIST