Security readout for executives and security teams
Plain-English summary
This flaw affects Dell EMC iDRAC remote management controllers. A remote unauthenticated attacker could send malformed input that crashes an affected process or potentially runs code. Because iDRAC is used for server management, exposed or outdated controllers should be treated as high business risk even though exploitation complexity is rated high.
Executive priority
Prioritize remediation for internet-reachable or broadly reachable iDRAC interfaces first. This is high urgency for infrastructure teams because exploitation could disrupt server management availability or potentially enable code execution on affected management controllers.
Technical view
CVE-2020-5344 is a CWE-121 stack-based buffer overflow in Dell EMC iDRAC7, iDRAC8, and iDRAC9 before 2.65.65.65, 2.70.70.70, and 4.00.00.00 respectively. CVSS 3.1 is 7.0: network reachable, high attack complexity, no privileges, no user interaction, low confidentiality and integrity impact, high availability impact.
Likely exposure
Organizations running Dell EMC iDRAC7, iDRAC8, or iDRAC9 firmware below the listed fixed versions are potentially exposed, especially where iDRAC management interfaces are reachable over internal or external networks. The source bundle does not provide CPEs or asset-discovery identifiers.
Exploitation context
The provided sources describe unauthenticated remote exploitation that may crash the affected process or execute arbitrary code. The CVE is not flagged as CISA KEV in the bundle, and no cited source here confirms active exploitation.
Researcher notes
The source bundle identifies the class, affected iDRAC generations, version thresholds, and CVSS vector, but does not include detailed vulnerable components, exploit prerequisites beyond high complexity, or workaround specifics. Avoid assuming exploit availability without an additional cited source.
Mitigation direction
- Upgrade iDRAC7 to 2.65.65.65 or later.
- Upgrade iDRAC8 to 2.70.70.70 or later.
- Upgrade iDRAC9 to 4.00.00.00 or later.
- Review Dell advisory DSA-2020-063 for any product-specific remediation details.
- Restrict iDRAC management access while remediation is planned.
Validation and detection
- Inventory Dell servers using iDRAC7, iDRAC8, or iDRAC9.
- Record installed iDRAC firmware versions for each asset.
- Compare versions against 2.65.65.65, 2.70.70.70, and 4.00.00.00 thresholds.
- Confirm management interfaces are not broadly reachable.
- Track remediation evidence against the Dell advisory reference.
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-121: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-5344 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 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/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:H/PR:N/UI:N/S:U/C:L/I:L/A:H2.24.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.dell.com/support/article/en-us/sln320717/dsa-2020-063-idrac-buffer-overflow-vulnerability?lang=enCVE 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.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.