Adobe Connect is widely used enterprise collaboration software; a critical (CVSS 9.3) stored XSS enabling session/account compromise across orgs warrants broad IT alerting.
CVE-2026-75684
Stored XSS in Adobe Connect allows script injection and account/session compromise.
do firstUpgrade to a fixed release: 12.11.1, 12.12, 4.5.
Is CVE-2026-75684 being exploited?
Not confirmed. CVE-2026-75684 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.74% probability of exploitation in the next 30 days.
How severe is CVE-2026-75684?
CVE-2026-75684 is rated Critical with a CVSS score of 9.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-75684?
Yes. A fix has been recorded for CVE-2026-75684. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-75684 affect?
CVE-2026-75684 affects Adobe Connect (server/web application). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-75684?
Apply vendor patch immediately; restrict access or isolate instances if patching is delayed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Stored XSS lets attackers inject JavaScript via form fields to hijack sessions, steal cookies/credentials, perform actions as users, and potentially escalate privileges.
Immediate action required
- affected<= 12.11
- affected<= 4.4
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
cisa ssvc
- exploitation
- none
- automatable
- no
- technical impact
- partial
Assessed by CISA 26 Sept 2026 (SSVC 2.0.3).
timeline
- 22 Sept 2026Published
- 24 Sept 2026Analysed by vulneraibility.com · 2 days later
- 26 Sept 2026CISA SSVC assessment: exploitation none · 2 days later
- 26 Sept 2026CVE record last updated · same day later
- Advisoryhelpx.adobe.com /security/products/connect/apsb26-150.html
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.