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CVE-2014-8459: Adobe Reader and Acrobat 10.x before 10.1.13 and 11.x before 11.0.10 on Windows and OS X allow attackers to ex

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HIGH 10.0WATCHLISTDOWNGRADEMITIGATEMITIGATE

CVE-2014-8459 is a high-severity flaw (CVSS 10.0) affecting acrobat, mac os x, windows. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Adobe Reader and Acrobat 10.x before 10.1.13 and 11.x before 11.0.10 on Windows and OS X allow attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2014-8445, CVE-2014-8446, CVE-2014-8447, CVE-2014-8456, CVE-2014-8458, CVE-2014-8461, and CVE-2014-9158.

Why this priority

  • Critical severity
  • EPSS top 5%: very likely to be exploited
  • On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score10.0 (High)
EPSS exploit chance8.9% (top 5%)
CISA exploited listNo
WeaknessCWE-94
Published2014-12-10
Last modified2026-06-17
Publisher (CNA): Adobe Systems Incorporated · Vendor: adobe · apple · microsoft

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 acrobat DOWNGRADE
Affected: 10.0 · 10.0.1 · 10.0.2 · 10.0.3 · 10.1 · 10.1.1 · 10.1.2 · 10.1.3
Fixed in: no fixed release known
Safe to downgrade to: a release before 10.0
1. Check installed version
apt-cache policy acrobat || rpm -q acrobat || acrobat --version
2. No fixed release: DOWNGRADE to a release before 10.0 (Debian / Ubuntu)
apt-cache madison acrobat sudo apt install acrobat=<VERSION_BEFORE_10.0> sudo apt-mark hold acrobat
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list acrobat sudo dnf downgrade acrobat-<VERSION_BEFORE_10.0> sudo dnf versionlock add acrobat
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.
apple mac os x MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
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.
microsoft windows MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
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.
adobe acrobat reader DOWNGRADE
Affected: 10.0 · 10.0.1 · 10.0.2 · 10.0.3 · 10.1 · 10.1.1 · 10.1.2 · 10.1.3
Fixed in: no fixed release known
Safe to downgrade to: a release before 10.0
1. Check installed version
apt-cache policy acrobat-reader || rpm -q acrobat-reader || acrobat-reader --version
2. No fixed release: DOWNGRADE to a release before 10.0 (Debian / Ubuntu)
apt-cache madison acrobat-reader sudo apt install acrobat-reader=<VERSION_BEFORE_10.0> sudo apt-mark hold acrobat-reader
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list acrobat-reader sudo dnf downgrade acrobat-reader-<VERSION_BEFORE_10.0> sudo dnf versionlock add acrobat-reader
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.
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-2014-8459?

acrobat: downgrade or apply the listed mitigation; mac os x: mitigate or apply the listed mitigation; windows: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-8459 being exploited?

CVE-2014-8459 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-2014-8459 affect?

CVE-2014-8459 affects acrobat, mac os x, windows. Severity is high (CVSS 10.0). Adobe Reader and Acrobat 10.x before 10.1.13 and 11.x before 11.0.10 on Windows and OS X allow attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-

How urgent is CVE-2014-8459?

Priority 64/100. Critical severity; EPSS top 5%: very likely to be exploited; On your watchlist

Software pages

Windows vulnerabilities · Adobe Acrobat vulnerabilities · Adobe Reader vulnerabilities

Related CVEs

References

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