Security readout for executives and security teams
Plain-English summary
Adobe Campaign Classic has a critical flaw that may let an unauthenticated remote attacker run code without user interaction. Successful exploitation could compromise campaign data, alter system behavior, disrupt service, and potentially cross a security boundary. Prioritize identifying affected installations and following Adobe’s advisory.
Executive priority
Treat as an immediate remediation priority. The maximum CVSS score, unauthenticated network attack path, no-interaction requirement, and potential full-system impact create substantial business risk, even though active exploitation is not established.
Technical view
This is a CWE-78 OS command injection vulnerability. Improper handling of special elements in an operating-system command can permit arbitrary code execution as the current user. CVSS 3.1 is 10.0: network-accessible, low complexity, no privileges or interaction required, with changed scope and high confidentiality, integrity, and availability impacts.
Likely exposure
Exposure is most concerning when Adobe Campaign Classic is network-reachable and matches the source-listed versions: “0” or “ACC v7: 7.4.4 build 9401.” The meaning of “0” is unclear in the supplied data. Other versions should not be assumed affected without checking Adobe’s advisory.
Exploitation context
The supplied sources describe remote, unauthenticated exploitation without user interaction. They do not establish active exploitation in the wild, and the CVE is not listed as KEV in the bundle. No public exploit evidence or attack prerequisites beyond the CVSS vector are provided.
Researcher notes
The record identifies command injection with changed scope and execution in the current-user context. The supplied version data is limited and contains an ambiguous “0” entry. Exact vulnerable components, request paths, fixed builds, workarounds, and exploitation evidence are not included; consult Adobe APSB26-134 before making scope decisions.
Mitigation direction
- Inventory Adobe Campaign Classic deployments and record their exact versions and build numbers.
- Compare each deployment against Adobe advisory APSB26-134 and apply its supported remediation.
- Restrict network access to affected ACC systems while remediation is pending.
- Monitor ACC hosts for unusual child processes, command execution, and outbound connections.
Validation and detection
- Confirm each deployed ACC version and build against Adobe’s affected and fixed ranges.
- Verify affected ACC interfaces are not unnecessarily exposed to untrusted networks.
- Review process and security telemetry for commands unexpectedly launched by ACC services.
- After remediation, verify the installed build and retest normal campaign workflows.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-76195 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 10 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H3.96adobeVulnerability scoring details
Base CVSS 3.1 score
10CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://helpx.adobe.com/security/products/campaign/apsb26-134.htmlCVE reference, adobe · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.