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CVE-2015-3043: Adobe Flash Player Memory Corruption Vulnerability

99
Patch now
CRITICAL 9.8EXPLOITEDREMOTEWATCHLISTUPGRADEMITIGATEMITIGATE

CVE-2015-3043 is a critical-severity flaw (CVSS 9.8) affecting flash player, suse linux enterprise desktop, suse linux enterprise workstation extension, reported as exploited in the wild. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Adobe Flash Player before 13.0.0.281 and 14.x through 17.x before 17.0.0.169 on Windows and OS X and before 11.2.202.457 on Linux allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, as exploited in the wild in April 2015, a different vulnerability than CVE-2015-0347, CVE-2015-0350, CVE-2015-0352, CVE-2015-0353, CVE-2015-0354, CVE-2015-0355, CVE-2015-0360, CVE-2015-3038, CVE-2015-304

Why this priority

  • Critical severity
  • EPSS top 1%: very likely to be exploited
  • Exploited in the wild (CISA KEV)
  • Public exploit reference
  • Remotely exploitable, no login, no user action
  • On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score9.8 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance73.9% (top 1%)
CISA exploited listYes, fix due 2022-03-24
WeaknessCWE-787
Published2015-04-14
Last modified2026-06-17
Publisher (CNA): Adobe Systems Incorporated · Vendor: adobe · novell · opensuse · redhat

Share: LinkedIn · X · Reddit

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

adobe flash player UPGRADE
Affected: < 11.2.202.457 · < 13.0.0.281 · >= 14.0.0.125 and < 17.0.0.169
Fixed in: 11.2.202.457, 13.0.0.281, 17.0.0.169
Safe to downgrade to: a release before 14.0.0.125
1. Check installed version
apt-cache policy flash-player || rpm -q flash-player || flash-player --version
2. UPGRADE to 11.2.202.457 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade flash-player
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade flash-player
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 14.0.0.125 (Debian / Ubuntu)
apt-cache madison flash-player sudo apt install flash-player=<VERSION_BEFORE_14.0.0.125> sudo apt-mark hold flash-player
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list flash-player sudo dnf downgrade flash-player-<VERSION_BEFORE_14.0.0.125> sudo dnf versionlock add flash-player
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
novell suse linux enterprise desktop MITIGATE
Affected: 11.0 sp3 · 12.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 11.0
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
novell suse linux enterprise workstation extension MITIGATE
Affected: 12.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 12.0
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
opensuse evergreen MITIGATE
Affected: 11.4
Fixed in: no fixed release known
Safe to downgrade to: a release before 11.4
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
opensuse opensuse MITIGATE
Affected: 13.1 · 13.2
Fixed in: no fixed release known
Safe to downgrade to: a release before 13.1
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
redhat enterprise linux desktop MITIGATE
Affected: 5.0 · 6.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 5.0
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.
Fedora 46 · perl-Net-IDN-Encode · FIXED · 2.600-1.fc46 · FEDORA-2026-84eff0ea64 · source
sudo dnf upgrade --advisory=FEDORA-2026-84eff0ea64
Fedora ELN · libXISF · FIXED · 0.2.15-2.eln159 · FEDORA-2026-b9e2d1bda0 · source
sudo dnf upgrade --advisory=FEDORA-2026-b9e2d1bda0
RHEL 5 Supplementary · flash-plugin · FIXED · flash-plugin-11.2.202.457-1.el5
sudo dnf upgrade --advisory=RHSA-2015:0813 rpm -q flash-plugin

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Verify at the official source NVD · CVE Program · CISA KEV catalog · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-3043?

flash player: upgrade to 11.2.202.457, 13.0.0.281, 17.0.0.169; suse linux enterprise desktop: mitigate or apply the listed mitigation; suse linux enterprise workstation extension: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-3043 being exploited?

Yes. CVE-2015-3043 is on the CISA Known Exploited Vulnerabilities list, so treat it as patch-now.

What does CVE-2015-3043 affect?

CVE-2015-3043 affects flash player, suse linux enterprise desktop, suse linux enterprise workstation extension. Severity is critical (CVSS 9.8). Adobe Flash Player before 13.0.0.281 and 14.x through 17.x before 17.0.0.169 on Windows and OS X and before 11.2.202.457 on Linux allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified ve

How urgent is CVE-2015-3043?

Priority 99/100. Critical severity; EPSS top 1%: very likely to be exploited; Exploited in the wild (CISA KEV); Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Windows vulnerabilities · Adobe Flash vulnerabilities

Related CVEs

References

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