Security readout for executives and security teams
Plain-English summary
This Cisco SD-WAN Software flaw can let a low-privileged local user become part of the root group on the device operating system. That can turn limited access into full control of an SD-WAN node, affecting confidentiality, integrity, and availability.
Executive priority
Treat this as high priority where Cisco SD-WAN devices are operationally critical or broadly administered. It is not described as remotely exploitable, but compromise after local access could give full device-level control.
Technical view
CVE-2020-3595 is a CWE-269 privilege escalation caused by incorrect permissions when an affected command is executed. The CVSS 3.1 vector is AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, scoring 7.8. Successful exploitation grants root privileges on the underlying OS.
Likely exposure
Exposure is most relevant to organizations running Cisco SD-WAN Solution software where attackers or insiders can obtain authenticated local access. The provided sources do not identify specific affected versions, internet exposure, or cloud-managed exposure details.
Exploitation context
The sources describe local authenticated exploitation by executing an affected command. CISA KEV status is false, and the provided source bundle does not cite active exploitation, public exploit use, or exploitation at scale.
Researcher notes
Version and fixed-release details are incomplete in the provided bundle. Validation should focus on Cisco advisory mapping, local privilege boundaries, and evidence of root-group escalation. Avoid assuming active exploitation without KEV or cited threat reporting.
Mitigation direction
- Review Cisco's advisory for affected and fixed SD-WAN Software releases.
- Upgrade affected deployments according to Cisco's vendor guidance.
- Restrict local shell and administrative access to trusted operators only.
- Remove stale accounts and unnecessary local privileges on SD-WAN systems.
- Monitor for unexpected privilege changes or root-group membership changes.
Validation and detection
- Inventory Cisco SD-WAN Solution deployments and software versions.
- Compare installed versions against Cisco's advisory guidance.
- Review who has local authenticated access to SD-WAN nodes.
- Check logs for unexpected command execution or privilege changes.
- Confirm remediation through vendor-supported version checks.
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-269: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-3595 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
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/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:L/UI:N/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20201104 Cisco SD-WAN Software Privilege Escalation VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO
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 Privilege Management
Improper Privilege Management represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.