Security readout for executives and security teams
Plain-English summary
CVE-2022-21524 affects Oracle Solaris 11. A low-privileged attacker who can reach Solaris over SMB could crash the system repeatedly or cause a hang, and may read or modify some accessible data. The main business risk is disruption of Solaris-hosted services, with limited confidentiality and integrity impact.
Executive priority
Treat this as a high-priority infrastructure maintenance issue for Solaris environments, especially where SMB is exposed. It is not evidenced as actively exploited in the provided sources, but the potential for complete service outage justifies timely remediation.
Technical view
Oracle describes a filesystem vulnerability in Solaris 11, reachable over SMB with low privileges, low attack complexity, and no user interaction. The CVSS 3.1 score is 7.6: AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H. Successful exploitation can cause complete denial of service and limited unauthorized data read/update/delete access.
Likely exposure
Exposure is most likely on Oracle Solaris 11 systems where SMB access is enabled and reachable by low-privileged users or accounts. Systems not running Solaris 11, or without reachable SMB service, are not identified as affected in the provided sources.
Exploitation context
The provided bundle does not show CISA KEV listing or active exploitation evidence. Risk still matters because Oracle rates exploitation as easy over the network via SMB with low privileges and no user interaction.
Researcher notes
The bundle does not provide a CWE, root-cause detail, exploit proof, or exact fixed package levels. Analysis should stay anchored to Oracle's CPU and CVE record. Validate exposure through Solaris 11 presence, SMB reachability, and Oracle patch applicability, not assumptions about other Oracle products.
Mitigation direction
- Review Oracle's July 2022 Critical Patch Update for Solaris 11 guidance.
- Apply the relevant Oracle Solaris security patches or updates identified by Oracle.
- Limit SMB access to trusted networks and required users only.
- Disable unnecessary SMB exposure on Solaris systems where operationally feasible.
- Prioritize systems supporting critical business services or sensitive data.
Validation and detection
- Inventory Oracle Solaris 11 hosts and their patch levels.
- Identify Solaris systems with SMB enabled or reachable from user networks.
- Confirm whether low-privileged accounts can access SMB on affected hosts.
- Check Oracle advisory applicability against each Solaris 11 build.
- Monitor affected hosts for repeated crashes, hangs, or unexplained filesystem activity.
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.
CVE-2022-21524 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
- High
- CVSS
- 7.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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.
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:L/UI:N/S:U/C:L/I:L/A:H2.84.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.6HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.oracle.com/security-alerts/cpujul2022.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.