Security readout for executives and security teams
CVE-2021-1473 affects Cisco Small Business RV Series router firmware. The Cisco advisory describes web management interface flaws that could let a remote attacker bypass authentication, upload files, or execute commands on affected devices. The CVE record rates this specific issue medium with CVSS 5.3, but internet-facing router management interfaces can raise business exposure. Exposure is most likely where Cisco Small Business RV Series router management interfaces are reachable from untrusted networks. The bundle does not list exact models, firmware versions, or CPEs, so asset owners must map Cisco RV devices against the vendor advisory. Treat as a timely network-edge hygiene issue. Prioritize internet-facing or remotely managed Cisco RV routers first, because compromise of router administration can affect traffic control and site connectivity even when the CVSS score is medium. Mitigation focus: Review Cisco’s advisory for affected models, fixed firmware, and official mitigations.; Update affected Cisco RV Series router firmware where vendor fixes are available.; Restrict web management access to trusted administrative networks only..
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
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Open ATT&CK lookupCVE-2021-1473 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A: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/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20210407 Cisco Small Business RV Series Routers 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.