7

CVE-2018-14656: linux linux_kernel Improper Input Validation

CVSS: 7.0v3.0HighModified
AliasesDEBIAN-CVE-2018-14656
Published 08-10-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-14656 is a high (CVSS 7.0) Improper Input Validation vulnerability in linux linux_kernel. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 43.4% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.0/10
010
High · v3.0 (CVE.org)
EPSS score
0.53%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
UBUNTU-CVE-2018-14656

Timeline

  1. 08-10-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

A missing address check in the callers of the show_opcodes() in the Linux kernel allows an attacker to dump the kernel memory at an arbitrary kernel address into the dmesg log.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.53%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

0.00 pp

From 0.53% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.53%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

[unknown]1 product
Debian1 product
  • linux< 4.18.6-1
Linux1 product

3 vendors · 3 products

References

7 links