Security readout for executives and security teams
Plain-English summary
CVE-2021-1479 affects Cisco SD-WAN vManage Software. The supplied CVSS vector indicates a low-privileged local attacker could gain full confidentiality, integrity, and availability impact on an affected system. The source bundle does not provide exact affected versions or fixed releases.
Executive priority
Treat this as a high-priority infrastructure remediation item if Cisco vManage is present. Business urgency comes from potential full system compromise after low-privileged local access, but the supplied evidence does not indicate known active exploitation.
Technical view
The CVE is associated with CWE-119 and Cisco SD-WAN vManage Software. CVSS 3.1 is 7.8 with AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, indicating local authenticated exploitation with high system impact. The broader Cisco advisory also references multiple vManage vulnerabilities.
Likely exposure
Exposure is likely limited to organizations operating Cisco SD-WAN vManage Software. The supplied bundle lists Cisco SD-WAN Solution with versions as n/a, so exact version exposure requires the Cisco advisory or asset validation.
Exploitation context
The source bundle does not show CISA KEV inclusion and provides no evidence of active exploitation. The CVSS vector for this CVE requires local access and low privileges; do not assume unauthenticated remote exploitation for this specific CVE from the supplied data alone.
Researcher notes
Use the Cisco advisory as the authoritative source for version mapping and remediation. The CVSS vector points to local authenticated privilege escalation for CVE-2021-1479, while the advisory title covers multiple vManage vulnerabilities with different impacts.
Mitigation direction
- Identify all Cisco SD-WAN vManage deployments and ownership.
- Review Cisco advisory cisco-sa-vmanage-YuTVWqy for affected and fixed releases.
- Apply Cisco-recommended updates or mitigations where applicable.
- Restrict local and administrative access to vManage systems.
- Monitor vManage systems for unauthorized privilege changes.
Validation and detection
- Confirm deployed vManage versions against Cisco advisory guidance.
- Verify whether affected systems have received Cisco-recommended fixes.
- Review access controls for local and privileged vManage users.
- Check logs for unexpected administrative actions or privilege escalation indicators.
- Document any systems requiring vendor-supported remediation exceptions.
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-119: 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-2021-1479 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
- 20210407 Cisco SD-WAN vManage Software VulnerabilitiesCVE 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 Restriction of Operations within the Bounds of a Memory Buffer
Improper Restriction of Operations within the Bounds of a Memory Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.