CVE-2020-24439: Acrobat Reader DC for macOS versions 2020.012.20048 (and earlier), 2020.001.30005 (and earlier) and 2017.011.3

Q: How do I fix CVE-2020-24439?

acrobat: upgrade to newer than 20.001.30005; acrobat dc: upgrade to newer than 20.012.20048; acrobat reader: upgrade to newer than 20.001.30005. Exact commands for each OS are on this page.

Q: Is CVE-2020-24439 being exploited?

CVE-2020-24439 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-24439 affect?

CVE-2020-24439 affects acrobat, acrobat dc, acrobat reader. Severity is low (CVSS 2.8). Acrobat Reader DC for macOS versions 2020.012.20048 (and earlier), 2020.001.30005 (and earlier) and 2017.011.30175 (and earlier) are affected by a security feature bypass. While the practical security impact is minimal, a defense-in-depth f

Q: How urgent is CVE-2020-24439?

Priority 22/100. No elevated risk signals yet.

Routine

LOW 2.8UPGRADEUPGRADEUPGRADE

CVE-2020-24439 is a low-severity flaw (CVSS 2.8) affecting acrobat, acrobat dc, acrobat reader. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Acrobat Reader DC for macOS versions 2020.012.20048 (and earlier), 2020.001.30005 (and earlier) and 2017.011.30175 (and earlier) are affected by a security feature bypass. While the practical security impact is minimal, a defense-in-depth fix has been implemented to further harden the Adobe Reader update process.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	2.8 (Low)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.6% (top 49%)
CISA exploited list	No
Weakness	CWE-347
Published	2020-11-05
Last modified	2026-06-17

Publisher (CNA): Adobe Systems Incorporated · Vendor: adobe

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

Am I affected?

Timeline

2020-11-05 20:15 UTCPublished CVE record published
2026-06-17 03:05 UTCUpdated Record last modified

adobe acrobat UPGRADE

Affected: <= 20.001.30005

Fixed in: newer than 20.001.30005

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy acrobat || rpm -q acrobat || acrobat --version

2. UPGRADE to newer than 20.001.30005 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade acrobat

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade acrobat

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

adobe acrobat dc UPGRADE

Affected: <= 17.011.30175 · <= 20.012.20048

Fixed in: newer than 20.012.20048

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy acrobat-dc || rpm -q acrobat-dc || acrobat-dc --version

2. UPGRADE to newer than 20.012.20048 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade acrobat-dc

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade acrobat-dc

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

adobe acrobat reader UPGRADE

Affected: <= 20.001.30005

Fixed in: newer than 20.001.30005

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy acrobat-reader || rpm -q acrobat-reader || acrobat-reader --version

2. UPGRADE to newer than 20.001.30005 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade acrobat-reader

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade acrobat-reader

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

adobe acrobat reader dc UPGRADE

Affected: <= 17.011.30175 · <= 20.012.20048

Fixed in: newer than 20.012.20048

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy acrobat-reader-dc || rpm -q acrobat-reader-dc || acrobat-reader-dc --version

2. UPGRADE to newer than 20.012.20048 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade acrobat-reader-dc

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade acrobat-reader-dc

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-2020-24439?

acrobat: upgrade to newer than 20.001.30005; acrobat dc: upgrade to newer than 20.012.20048; acrobat reader: upgrade to newer than 20.001.30005. Exact commands for each OS are on this page.

Is CVE-2020-24439 being exploited?

CVE-2020-24439 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-2020-24439 affect?

CVE-2020-24439 affects acrobat, acrobat dc, acrobat reader. Severity is low (CVSS 2.8). Acrobat Reader DC for macOS versions 2020.012.20048 (and earlier), 2020.001.30005 (and earlier) and 2017.011.30175 (and earlier) are affected by a security feature bypass. While the practical security impact is minimal, a defense-in-depth f

How urgent is CVE-2020-24439?

Priority 22/100. No elevated risk signals yet.

Software pages

macOS vulnerabilities · Adobe Acrobat vulnerabilities · Adobe Reader vulnerabilities

Related CVEs

CVE-2026-34621 HIGH 8.6 EXPLOITED UPGRADE UPGRADE Adobe Acrobat and Reader Prototype Pollution Vulnerability
CVE-2026-34622 HIGH 8.6 UPGRADE UPGRADE Acrobat Reader versions 26.001.21411, 24.001.30360, 24.001.30362 and earlier are affected by an Improperly Con
CVE-2026-34626 MEDIUM 6.3 UPGRADE UPGRADE Acrobat Reader versions 26.001.21411, 24.001.30360, 24.001.30362 and earlier are affected by an Improperly Con
CVE-2026-48294 HIGH 7.4 UPGRADE Adobe Acrobat PDF Extension (Chrome) versions 26.5.2.2 and earlier are affected by a UXSS-class cross-origin d
CVE-2026-47965 HIGH 7.8 UPGRADE UPGRADE Acrobat Reader versions 24.001.30365, 26.001.21651 and earlier are affected by an out-of-bounds write vulnerab

References

← Back to latest CVEs