Security readout for executives and security teams
Plain-English summary
CVE-2021-33147 is an information disclosure issue in Intel(R) IPP Crypto library versions before 2021.2. An attacker must already have authenticated local access, so this is not a remote internet takeover issue. The main business concern is exposure of sensitive data on systems or applications using the affected library.
Executive priority
Treat this as a targeted confidentiality risk rather than a broad emergency. Prioritize systems that process sensitive data and allow many local users, then update or confirm vendor remediation during normal security maintenance windows.
Technical view
The issue is an improper conditions check, mapped to CWE-754, in Intel(R) IPP Crypto before 2021.2. CVSS 3.1 is 5.5 with local attack vector, low complexity, low privileges, no user interaction, unchanged scope, high confidentiality impact, and no integrity or availability impact.
Likely exposure
Exposure is most likely where applications, services, or bundled dependencies include Intel(R) IPP Crypto library before version 2021.2. The source bundle does not identify specific downstream products, operating systems, or deployments.
Exploitation context
The CVE record describes exploitation as requiring authenticated local access. The source bundle does not show CISA KEV listing or any cited evidence of active exploitation, public exploit availability, or remote exploitation.
Researcher notes
Key constraints are local access, low privileges, and high confidentiality impact. Evidence is limited to the CVE record and Intel advisory reference; no exploit mechanics, affected downstream products, or observed exploitation are provided in the bundle.
Mitigation direction
- Inventory software using Intel(R) IPP Crypto library.
- Update deployments before version 2021.2 to version 2021.2 or later.
- Check Intel advisory INTEL-SA-00600 for vendor-specific remediation guidance.
- Limit local authenticated access on systems using affected builds.
- Track downstream vendor updates for products bundling the library.
Validation and detection
- Confirm the deployed Intel(R) IPP Crypto library version.
- Identify applications that statically or dynamically bundle the library.
- Verify affected assets require authenticated local access only.
- Confirm remediation against Intel advisory INTEL-SA-00600.
- Record unsupported or unverifiable bundled copies as residual risk.
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-754: 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-2021-33147 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
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/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:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N1.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00600.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 Check for Unusual or Exceptional Conditions
Improper Check for Unusual or Exceptional Conditions represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.