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CVE-2016-7874: Adobe Flash Player versions 23.0.0.207 and earlier, 11.2.202.644 and earlier have an exploitable memory corrup

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HIGH 8.8UPGRADEUPGRADEUPGRADE

CVE-2016-7874 is a high-severity flaw (CVSS 8.8) affecting flash player desktop runtime, flash player, flash player. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Adobe Flash Player versions 23.0.0.207 and earlier, 11.2.202.644 and earlier have an exploitable memory corruption vulnerability in the NetConnection class when handling the proxy types. Successful exploitation could lead to arbitrary code execution.

Why this priority

  • High severity
  • EPSS top 8%: very likely to be exploited

A fixed release or distro patch exists.

Risk facts

CVSS score8.8 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionRequired
EPSS exploit chance5.0% (top 8%)
CISA exploited listNo
WeaknessCWE-787
Published2016-12-15
Last modified2026-06-17
Publisher (CNA): Adobe Systems Incorporated · Vendor: adobe

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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 desktop runtime UPGRADE
Affected: <= 23.0.0.207
Fixed in: newer than 23.0.0.207
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy flash-player-desktop-runtime || rpm -q flash-player-desktop-runtime || flash-player-desktop-runtime --version
2. UPGRADE to newer than 23.0.0.207 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade flash-player-desktop-runtime
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade flash-player-desktop-runtime
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
adobe flash player UPGRADE
Affected: <= 23.0.0.207
Fixed in: newer than 23.0.0.207
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy flash-player || rpm -q flash-player || flash-player --version
2. UPGRADE to newer than 23.0.0.207 (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.
adobe flash player UPGRADE
Affected: <= 23.0.0.207
Fixed in: newer than 23.0.0.207
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy flash-player || rpm -q flash-player || flash-player --version
2. UPGRADE to newer than 23.0.0.207 (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.
adobe flash player UPGRADE
Affected: <= 23.0.0.207
Fixed in: newer than 23.0.0.207
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy flash-player || rpm -q flash-player || flash-player --version
2. UPGRADE to newer than 23.0.0.207 (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.
adobe flash player UPGRADE
Affected: <= 11.2.202.644
Fixed in: newer than 11.2.202.644
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy flash-player || rpm -q flash-player || flash-player --version
2. UPGRADE to newer than 11.2.202.644 (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.
Verify at the official source NVD · CVE Program · 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-2016-7874?

flash player desktop runtime: upgrade to newer than 23.0.0.207; flash player: upgrade to newer than 23.0.0.207; flash player: upgrade to newer than 23.0.0.207. Exact commands for each OS are on this page.

Is CVE-2016-7874 being exploited?

CVE-2016-7874 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2016-7874 affect?

CVE-2016-7874 affects flash player desktop runtime, flash player, flash player. Severity is high (CVSS 8.8). Adobe Flash Player versions 23.0.0.207 and earlier, 11.2.202.644 and earlier have an exploitable memory corruption vulnerability in the NetConnection class when handling the proxy types. Successful exploitation could lead to arbitrary code

How urgent is CVE-2016-7874?

Priority 54/100. High severity; EPSS top 8%: very likely to be exploited

Software pages

Adobe Flash vulnerabilities

Related CVEs

References

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