Analyst readout for executives and security teams
Plain-English summary
Adobe Experience Manager 6.5.9.0 and earlier has a certificate validation flaw in its cold storage component. If an attacker can position themselves between systems during new certificate establishment, they could capture sensitive information. The attack is not trivial, but confidentiality impact is high.
Executive priority
Treat this as a targeted confidentiality risk, not an emergency wormable issue. Prioritize exposed or business-critical Experience Manager environments, especially where sensitive content flows through cold storage.
Technical view
CVE-2021-40713 is CWE-295 improper certificate validation in Adobe Experience Manager cold storage. The CVSS 3.1 score is 5.9: network reachable, high attack complexity, no privileges or user interaction, unchanged scope, high confidentiality impact, no integrity or availability impact.
Likely exposure
Exposure is most likely in Adobe Experience Manager deployments at version 6.5.9.0 or earlier that use the cold storage component. The provided sources do not identify other Adobe products or specific configurations.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation requires a successful man-in-the-middle position when the cold server establishes a new certificate, raising practical attack difficulty.
Researcher notes
Evidence is limited to the CVE data and Adobe advisory reference in the source bundle. Do not assume public exploitation, affected cloud services, or a specific patched version unless confirmed in Adobe APSB21-82 or updated vendor records.
Mitigation direction
- Identify Adobe Experience Manager deployments running version 6.5.9.0 or earlier.
- Review Adobe APSB21-82 and apply Adobe's recommended update or mitigation.
- Prioritize remediation where the cold storage component is deployed or reachable over untrusted networks.
- Restrict network paths that could allow man-in-the-middle positioning against cold storage communications.
Validation and detection
- Inventory Adobe Experience Manager versions and confirm whether cold storage is in use.
- Check remediation records against Adobe APSB21-82 for every affected deployment.
- Review certificate trust and validation settings against Adobe guidance.
- Assess network segmentation around cold storage communications for man-in-the-middle exposure.
Public sources used
Based on public source material and reviewed before publication.
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-295: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2021-40713 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
- Medium
- CVSS
- 5.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/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.
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:H/PR:N/UI:N/S:U/C:H/I:N/A:N2.23.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.9MediumVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://helpx.adobe.com/security/products/experience-manager/apsb21-82.htmlCVE reference · x_refsource_MISC
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 Certificate Validation
Improper Certificate Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.