Security readout for executives and security teams
Plain-English summary
CVE-2021-2335 is a low-severity Oracle Database Enterprise Edition issue in Data Redaction. A low-privileged database user with network access could cause limited unauthorized data changes, but the attack requires another person to interact. The main business concern is integrity risk in databases using affected Oracle versions.
Executive priority
Treat this as routine but real database integrity risk. It should be handled through normal Oracle patch governance, with faster attention for internet-exposed, partner-accessible, or sensitive databases using Data Redaction.
Technical view
The vulnerability affects Oracle Database Enterprise Edition Data Redaction in versions 12.1.0.2, 12.2.0.1, and 19c. CVSS 3.1 is 3.5 with network attack vector, low complexity, low privileges, required user interaction, and low integrity impact only.
Likely exposure
Exposure is most likely where affected Oracle Database Enterprise Edition versions are reachable over Oracle Net and accounts have Create Session privilege. Systems using Data Redaction deserve priority inventory review. The source bundle does not identify cloud services, other Oracle products, or non-Enterprise editions as affected.
Exploitation context
The bundle does not show known active exploitation, and the CVE is not marked as CISA KEV. Exploitation is described as easy but constrained by required low database privileges, Oracle Net access, and human interaction by someone other than the attacker.
Researcher notes
Key constraints are PR:L, UI:R, C:N, I:L, A:N. The impact is limited to unauthorized update, insert, or delete access to some Data Redaction-accessible data. The bundle provides no CWE, exploit proof, or detailed patch matrix beyond Oracle CPU reference.
Mitigation direction
- Review Oracle’s July 2021 Critical Patch Update guidance for CVE-2021-2335.
- Apply the applicable Oracle-supported security update where vendor guidance confirms availability.
- Restrict Oracle Net exposure to trusted networks and required application paths.
- Review and minimize Create Session privileges on affected databases.
- Prioritize systems using Data Redaction for configuration and patch review.
Validation and detection
- Inventory Oracle Database Enterprise Edition versions 12.1.0.2, 12.2.0.1, and 19c.
- Confirm whether the Data Redaction component is installed or used.
- Identify accounts with Create Session privilege on affected databases.
- Verify applicable Oracle CPU patch status from vendor patch records.
- Check network paths that allow Oracle Net access to affected databases.
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.
Database behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-2335 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
- Low
- CVSS
- 3.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/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:L/PR:L/UI:R/S:U/C:N/I:L/A:N2.11.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
3.5LowVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.oracle.com/security-alerts/cpujul2021.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.