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

This month

HIGH 7.8DOWNGRADE

CVE-2021-26026 is a high-severity flaw (CVSS 7.8) 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 Professional 2021 14.0 1721 has a User Mode Write Access Violation starting at IDE_ACDStd!JPEGTransW+0x000000000000c7f4 via a crafted BMP image.

Why this priority

High severity

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-863
Published	2021-01-26
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

2021-01-26 18:16 UTCPublished CVE record published
2026-06-17 03:42 UTCUpdated Record last modified

acdsee photo studio 2021 DOWNGRADE

Affected: 14.0 build_1721

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-2021-26026?

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

Is CVE-2021-26026 being exploited?

CVE-2021-26026 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-2021-26026 affect?

CVE-2021-26026 affects photo studio 2021. Severity is high (CVSS 7.8). PlugIns\IDE_ACDStd.apl in ACDSee Professional 2021 14.0 1721 has a User Mode Write Access Violation starting at IDE_ACDStd!JPEGTransW+0x000000000000c7f4 via a crafted BMP image.

How urgent is CVE-2021-26026?

Priority 41/100. High severity

Related CVEs

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
CVE-2020-29595 CRITICAL 9.8 DOWNGRADE PlugIns\IDE_ACDStd.apl in ACDSee Photo Studio Studio Professional 2021 14.0 Build 1705 has a User Mode Write A

References

← Back to latest CVEs