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TI-2018-03446 Aliases CVE-2018-4877GHSA-hcf8-mxwr-h337

Use after free in Adobe Flash Player before 28.0.0.161

Priority MEDIUM 53CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA, Red Hat and Microsoft. Impact type from CWE-416 and the CVSS impact.

Summary

A use-after-free vulnerability was discovered in Adobe Flash Player before 28.0.0.161. This vulnerability occurs due to a dangling pointer in the Primetime SDK related to media player's quality of service functionality. A successful attack can lead to arbitrary code execution.

Why it matters now

EPSS 0.08349 94th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisoryMicrosoft: 1 update

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Adobe Flash Player before 28.0.0.161Adobe Flash Player before 28.0.0.161—No fix listedCNA
  • Adobe Flash Player before 28.0.0.161 Vendor— Affected Adobe Flash Player before 28.0.0.161 Fixed in — No fix listed CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*before 28.0.0.161VulnerableAdobe
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*not specified by NVDRunning onApple
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*not specified by NVDRunning onLinux
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:edge:*:*before 28.0.0.161VulnerableAdobe
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:internet_explorer_11:*:*before 28.0.0.161VulnerableAdobe
cpe:2.3:o:microsoft:windows_10:*:*:*:*:*:*:*:*all versionsRunning onMicrosoft
  • cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:* Versions before 28.0.0.161 Vulnerable ·Adobe
  • cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
  • cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:a:adobe:flash_player:*:*:*:*:*:edge:*:* Versions before 28.0.0.161 Vulnerable ·Adobe
  • cpe:2.3:a:adobe:flash_player:*:*:*:*:*:internet_explorer_11:*:* Versions before 28.0.0.161 Vulnerable ·Adobe
  • cpe:2.3:o:microsoft:windows_10:*:*:*:*:*:*:*:* Versions all versions Running on ·Microsoft
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:*:*all versionsRunning onMicrosoft
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:chrome:*:*before 28.0.0.161VulnerableAdobe
cpe:2.3:o:google:chrome_os:-:*:*:*:*:*:*:*not specified by NVDRunning onGoogle
  • cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:*:* Versions all versions Running on ·Microsoft
  • cpe:2.3:a:adobe:flash_player:*:*:*:*:*:chrome:*:* Versions before 28.0.0.161 Vulnerable ·Adobe
  • cpe:2.3:o:google:chrome_os:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Google

Remediation

Red Hat 1 advisory

  • RHSA-2018:0285 Released 2018-02-07 · Red Hat rating Critical
    flash-plugin security update
    • Red Hat Enterprise Linux Desktop Supplementary (v. 6) flash-plugin-28.0.0.161-1.el6_9
    • Red Hat Enterprise Linux Server Supplementary (v. 6) flash-plugin-28.0.0.161-1.el6_9
    • Red Hat Enterprise Linux Workstation Supplementary (v. 6) flash-plugin-28.0.0.161-1.el6_9

Microsoft 1 update

  • ADV180004
    February 2018 Adobe Flash Security Update

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Adobe Flash Player before 28.0.0.161 — RHSA-2018:0285

    2 records Highest priority Priority CRITICAL 1 CRITICAL, 1 MEDIUM

    Other records, highest priority first

    • TI-2018-03447 Use after free in Adobe Flash Player before 28.0.0.161Priority CRITICAL 93
    Show all 2 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Critical. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux Desktop Supplementary (v. 6)Fixed RHSA-2018:0285
Red Hat Enterprise Linux Server Supplementary (v. 6)Fixed RHSA-2018:0285
Red Hat Enterprise Linux Workstation Supplementary (v. 6)Fixed RHSA-2018:0285

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-4877
  2. 2026-10-03 Alias added: GHSA-hcf8-mxwr-h337

References

Advisory 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences