Security readout for executives and security teams
Plain-English summary
A malicious link could run attacker-controlled script in a victim’s Adobe Connect session. If a user opens the crafted link, the attacker may gain elevated access or control over that user’s account or session. The issue is critical, but the supplied evidence does not show active exploitation.
Executive priority
Treat as an urgent remediation item for externally reachable or sensitive Adobe Connect environments. User interaction limits automatic compromise, but common link-sharing workflows make exposure plausible, and successful exploitation could compromise accounts or sessions. Require rapid inventory, vendor-guidance review, and verified updating.
Technical view
CVE-2026-27245 is a reflected cross-site scripting vulnerability (CWE-79) reachable over the network without authentication. Exploitation requires user interaction and changes security scope. Its CVSS 3.1 score is 9.3, reflecting potentially high confidentiality and integrity impact, with no rated availability impact.
Likely exposure
Organizations using internet-accessible Adobe Connect 2025.3, 12.10, or earlier are the clearest exposure group. The structured data also references Adobe Connect Desktop Application, but its version boundary conflicts with the narrative description; confirm applicability against Adobe’s advisory and asset inventory.
Exploitation context
A victim must visit a maliciously crafted URL or interact with a compromised web page. No privileges are required by the attacker. The bundle states that this CVE is not in KEV, and no supplied source establishes active exploitation.
Researcher notes
The CVSS vector is AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N. The bundle’s narrative names Connect 2025.3 and 12.10 or earlier, while structured affected data lists boundaries of 12.11 and Desktop Application 2025.9. Because those representations are not fully aligned, validate exact affected and corrected versions with Adobe.
Mitigation direction
- Review Adobe advisory APSB26-37 for the vendor-approved corrected release or mitigation.
- Prioritize updating internet-accessible Adobe Connect deployments within an expedited maintenance window.
- Warn users against unexpected Adobe Connect links until remediation is complete.
- Consider invalidating exposed sessions if investigation identifies suspicious link activity.
Validation and detection
- Inventory Adobe Connect server and desktop application versions across the environment.
- Identify deployments running Adobe Connect 2025.3, 12.10, or earlier.
- Confirm desktop application applicability and version boundaries using Adobe advisory APSB26-37.
- Review web, proxy, and security logs for suspicious crafted Adobe Connect URLs.
- Verify the vendor-approved update is installed on every identified instance.
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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 lookupCVE-2026-27245 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
- 9.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
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:R/S:C/C:H/I:H/A:N2.85.8adobeVulnerability scoring details
Base CVSS 3.1 score
9.3CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
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/connect/apsb26-37.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 Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.