CVE-2020-29595: PlugIns\IDE_ACDStd.apl in ACDSee Photo Studio Studio Professional 2021 14.0 Build 1705 has a User Mode Write A

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2020-29595 is a critical-severity flaw (CVSS 9.8) affecting photo studio 2021. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PlugIns\IDE_ACDStd.apl in ACDSee Photo Studio Studio Professional 2021 14.0 Build 1705 has a User Mode Write AV starting at IDE_ACDStd!JPEGTransW+0x00000000000031aa.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 31%)
CISA exploited list	No
Published	2020-12-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: acdsee

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

Am I affected?

Timeline

2020-12-07 19:15 UTCPublished CVE record published
2026-06-17 03:11 UTCUpdated Record last modified

acdsee photo studio 2021 DOWNGRADE

Affected: 14.0 build_1705

Fixed in: no fixed release known

Safe to downgrade to: a release before 14.0

1. Check installed version

apt-cache policy photo-studio-2021 || rpm -q photo-studio-2021 || photo-studio-2021 --version

2. No fixed release: DOWNGRADE to a release before 14.0 (Debian / Ubuntu)

apt-cache madison photo-studio-2021 sudo apt install photo-studio-2021=<VERSION_BEFORE_14.0> sudo apt-mark hold photo-studio-2021

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list photo-studio-2021 sudo dnf downgrade photo-studio-2021-<VERSION_BEFORE_14.0> sudo dnf versionlock add photo-studio-2021

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-2020-29595?

photo studio 2021: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-29595 being exploited?

CVE-2020-29595 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-2020-29595 affect?

CVE-2020-29595 affects photo studio 2021. Severity is critical (CVSS 9.8). PlugIns\IDE_ACDStd.apl in ACDSee Photo Studio Studio Professional 2021 14.0 Build 1705 has a User Mode Write AV starting at IDE_ACDStd!JPEGTransW+0x00000000000031aa.

How urgent is CVE-2020-29595?

Priority 62/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-26026 HIGH 7.8 DOWNGRADE PlugIns\IDE_ACDStd.apl in ACDSee Professional 2021 14.0 1721 has a User Mode Write Access Violation starting a
CVE-2021-26025 HIGH 7.8 DOWNGRADE PlugIns\IDE_ACDStd.apl in ACDSee Professional 2021 14.0 1721 has a User Mode Write Access Violation starting a

References

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