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Fencer Vulns
critical 9.8

CVE-2018-15981 in the critical feed json

Flash Player versions 31.0.0.148 and earlier have a type confusion vulnerability.

published 2018-11-29 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-7837

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
11.7%
EPSS 11.7% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

Flash Player versions 31.0.0.148 and earlier have a type confusion vulnerability. Successful exploitation could lead to arbitrary code execution.

Patch / fix

  • flash-plugin RHEL 6 EXTRAS 31.0.0.153-1.el6_10

red hat advisories RHSA-2018:3644

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-15981 updated cvss 8.8

flash-plugin: Arbitrary code execution vulnerability (APSB18-44)

  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) flash-plugin 31.0.0.153-1.el6_10 Red Hat Enterprise Linux Server Supplementary (v. 6) flash-plugin 31.0.0.153-1.el6_10 Red Hat Enterprise Linux Workstation Supplementary (v. 6) flash-plugin 31.0.0.153-1.el6_10
    fixed: vendor fix RHSA-2018:3644

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

11.70% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • Adobe Flash Player

Classification

Weakness
  • CWE-704 Incorrect Type Conversion or Cast

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.