CVE-2026-82004: Adobe Campaign Classic (ACC) is affected by an Improper Neutralization of Special Elements used in an OS Comma

Q: How do I fix CVE-2026-82004?

campaign: upgrade to 7.4.4. Exact commands for each OS are on this page.

Q: Is CVE-2026-82004 being exploited?

CVE-2026-82004 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-2026-82004 affect?

CVE-2026-82004 affects campaign. Severity is critical (CVSS 10.0). Adobe Campaign Classic (ACC) is affected by an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability that could result in arbitrary code execution in the context of the current user. An att

Q: How urgent is CVE-2026-82004?

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

This week

CRITICAL 10.0REMOTEUPGRADE

CVE-2026-82004 is a critical-severity flaw (CVSS 10.0) affecting campaign. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Adobe Campaign Classic (ACC) is affected by an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to execute arbitrary code. Exploitation of this issue does not require user interaction. Scope is changed.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.3% (top 12%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-09-08
Last modified	2026-09-11

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

Last updated 2026-09-11 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-08 19:19 UTCPublished CVE record published
2026-09-11 21:17 UTCUpdated Record last modified

adobe campaign UPGRADE

Affected: < 7.4.4 · 7.4.4 9400 · 7.4.4 9401

Fixed in: 7.4.4

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 7.4.4 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade campaign

Note

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

Exact fixes by distribution

Fedora ELN · xfsdump · FIXED · 3.3.0-3.eln159 · FEDORA-2026-6e9bb3f901 · source

sudo dnf upgrade --advisory=FEDORA-2026-6e9bb3f901

Fedora 46 · fio · FIXED · 3.43-2.fc46 · FEDORA-2026-b36219886b · source

sudo dnf upgrade --advisory=FEDORA-2026-b36219886b

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-2026-82004?

campaign: upgrade to 7.4.4. Exact commands for each OS are on this page.

Is CVE-2026-82004 being exploited?

CVE-2026-82004 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-2026-82004 affect?

CVE-2026-82004 affects campaign. Severity is critical (CVSS 10.0). Adobe Campaign Classic (ACC) is affected by an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability that could result in arbitrary code execution in the context of the current user. An att

How urgent is CVE-2026-82004?

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

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References

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