Security readout for executives and security teams
Plain-English summary
CVE-2021-0115 is a firmware buffer overflow affecting some Intel processors. It requires local access and high privileges, so it is not a typical remote break-in issue. If abused after an attacker already has strong local access, it could raise impact across confidentiality, integrity, and availability.
Executive priority
Handle this through firmware vulnerability management, not emergency incident response, unless affected high-value systems already have signs of privileged compromise. Prioritize critical infrastructure and platforms where local administrator access would be especially damaging.
Technical view
The CVE describes CWE-120 buffer overflow behavior in Intel processor firmware. CVSS 3.1 is 6.7 with AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. The public bundle does not enumerate exact processor models; it points to Intel SA-00527 and NetApp guidance for affected scope.
Likely exposure
Exposure is most likely on systems, servers, or appliances using affected Intel processor firmware. Practical risk depends on exact processor and OEM firmware status. The attacker needs local access and high privileges before exploitation is relevant.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation evidence. The vulnerability is post-compromise in nature: it matters most where a privileged local user or attacker foothold could attempt further privilege escalation.
Researcher notes
The bundle confirms the weakness class, access requirements, impact ratings, and vendor references, but not exact affected SKUs or remediation details. Researchers should avoid broad product claims until Intel SA-00527 and platform vendor advisories are checked directly.
Mitigation direction
- Review Intel SA-00527 for affected processor and firmware guidance.
- Check OEM or appliance vendor advisories for platform-specific firmware updates.
- Review NetApp advisory if NetApp products are in scope.
- Prioritize firmware remediation on critical servers and high-trust administrative systems.
- If no platform fix is listed, monitor vendor guidance for updates.
Validation and detection
- Inventory systems using Intel processors and record firmware or BIOS versions.
- Map each platform against Intel SA-00527 and relevant OEM advisories.
- For NetApp environments, compare assets against NTAP-20220210-0007.
- Confirm whether firmware updates have been applied successfully.
- Document systems with no available vendor remediation.
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-120: 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-2021-0115 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
- 6.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/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:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H0.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.7MediumVector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00527.htmlCVE reference · x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20220210-0007/CVE reference · x_refsource_CONFIRM
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.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.