Security readout for executives and security teams
Plain-English summary
This critical Adobe Campaign Classic vulnerability may let a remote, unauthenticated attacker make an affected server run arbitrary code without user interaction. Successful exploitation could expose campaign data, alter systems, interrupt services, and affect resources beyond the vulnerable component. Actual exposure depends on the installed build and whether the vulnerable service is reachable.
Executive priority
Treat as an immediate remediation priority. Identify exposed ACC systems, consult Adobe's advisory, and apply its prescribed update or mitigation through emergency change procedures. If remediation cannot occur promptly, restrict network reachability and increase monitoring. Escalate any suspicious system-level activity for incident investigation.
Technical view
CVE-2026-76197 is an OS command injection flaw, CWE-78, with CVSS 3.1 score 10.0. The supplied vector indicates network access, low complexity, no privileges, no user interaction, changed scope, and high confidentiality, integrity, and availability impact. Code executes in the current user's context.
Likely exposure
The bundle identifies Adobe Campaign Classic v7 build 7.4.4.9401, but also contains an ambiguous version entry of "0" and does not provide a complete affected range. Prioritize deployments reachable from the internet or untrusted networks. Confirm every installed ACC build against Adobe advisory APSB26-134.
Exploitation context
No supplied source reports active exploitation, and the CVE is not identified as being in CISA KEV. That does not establish absence of exploitation. The network-accessible, unauthenticated, low-complexity characteristics indicate serious exploitation potential, but the bundle provides no exploit availability or observed-attack evidence.
Researcher notes
The supplied record supports command injection and arbitrary code execution but does not describe the vulnerable component, request path, root cause, affected-range boundaries, patch build, indicators, or proof of exploitation. Process and network monitoring recommendations are defensive inferences from the command-injection impact, not vendor-provided indicators.
Mitigation direction
- Review Adobe advisory APSB26-134 for the applicable update or vendor-prescribed mitigation.
- Inventory all Adobe Campaign Classic instances and record their exact versions and build numbers.
- Prioritize remediation for internet-facing or untrusted-network-accessible ACC deployments.
- Restrict ACC access to trusted networks while remediation is pending.
- Preserve relevant application, process, authentication, and network logs for investigation.
Validation and detection
- Compare each installed ACC build with the affected versions and remediation guidance in APSB26-134.
- Confirm vulnerable ACC services are not exposed beyond their intended trusted users and networks.
- Verify the vendor-recommended update or mitigation is present on every applicable instance.
- Review logs for unexpected processes, OS-command activity, configuration changes, or outbound connections associated with ACC.
- Reassess service availability and security controls after remediation without attempting exploitation.
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-2026-76197 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
Improper Neutralization of Special Elements used in an OS Command represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.