Security readout for executives and security teams
Plain-English summary
CVE-2020-27337 is a remotely reachable flaw in Treck IPv6 versions before 6.0.1.68. An unauthenticated attacker with network access could trigger memory corruption and possibly denial of service. The main business risk is disruption or compromise of devices or products that embed the affected Treck IPv6 stack.
Executive priority
Treat this as a high-priority exposure review for embedded and appliance environments, especially where IPv6 is enabled. Prioritize confirming vendor impact and updates over broad emergency action, because public sources here do not establish active exploitation.
Technical view
The CVE describes improper input validation in the Treck IPv6 component, leading to an out-of-bounds write. The CVSS 3.1 score is 7.3, with network attack vector, low complexity, no privileges, and no user interaction required. Public source data identifies Treck IPv6 before 6.0.1.68 as affected.
Likely exposure
Exposure is most likely in products, firmware, appliances, or embedded systems that include Treck IPv6 before 6.0.1.68. The source bundle does not enumerate affected CPEs, so asset-level confirmation depends on vendor advisories, SBOMs, or component inventories.
Exploitation context
The source bundle does not show CISA KEV listing or cite active exploitation. Risk remains meaningful because the flaw is remotely reachable, unauthenticated, and low complexity when the affected IPv6 component is exposed over the network.
Researcher notes
Evidence is limited to the CVE record and vendor advisories. The CVE confirms CWE-787, network reachability, and affected Treck IPv6 versions before 6.0.1.68. Public affected-product enumeration is incomplete in the supplied bundle, so avoid assuming downstream product impact without vendor confirmation.
Mitigation direction
- Identify products or firmware using Treck IPv6 before 6.0.1.68.
- Apply vendor updates that address the Treck IPv6 component issue.
- Review Treck vulnerability guidance for current remediation instructions.
- Review NetApp advisory if NetApp products are in scope.
- Limit unnecessary IPv6 exposure on affected network-facing systems.
Validation and detection
- Inventory assets with embedded TCP/IP stacks or Treck IPv6 dependencies.
- Confirm Treck IPv6 component versions through SBOMs, firmware notes, or vendor support.
- Check whether any NetApp assets match the referenced advisory.
- Verify affected systems received vendor remediation or compensating exposure reduction.
- Document systems where component version cannot be confirmed.
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-787: 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-2020-27337 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 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AC:L/AV:N/A:L/C:L/I:L/PR:N/S:U/UI: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/AC:L/AV:N/A:L/C:L/I:L/PR:N/S:U/UI:N3.93.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.3HighVector: CVSS:3.1/AC:L/AV:N/A:L/C:L/I:L/PR:N/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://treck.com/vulnerability-response-information/CVE reference · x_refsource_CONFIRM
- https://security.netapp.com/advisory/ntap-20210201-0003/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.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.