Security readout for executives and security teams
Plain-English summary
This CVE describes an authentication bypass in TOTOLINK A7000R firmware 9.1.0u.6115_B20201022. A remote attacker may be able to access protected router functions without logging in. Because routers sit at network edges, successful abuse could expose traffic, settings, and availability.
Executive priority
Prioritize within edge-device remediation work. The score is critical and the flaw can bypass login without credentials, but the provided sources do not confirm active exploitation or a named vendor fix.
Technical view
The CVE reports CWE-288 authentication bypass via formLoginAuth.htm in TOTOLINK A7000R firmware 9.1.0u.6115_B20201022. CVSS 3.1 is 9.8, network reachable, low complexity, no privileges, no user interaction, with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to TOTOLINK A7000R devices running firmware 9.1.0u.6115_B20201022, especially where the management interface is reachable from untrusted networks. The CVE affected-product metadata is incomplete, so confirm by device model and firmware, not CPE alone.
Exploitation context
The bundle does not show CISA KEV listing or cite confirmed active exploitation. It does include a public GitHub reference and says a specific request can bypass login, so public technical detail may exist. Treat internet-exposed management interfaces as urgent.
Researcher notes
CVE metadata names CWE-288 and a specific endpoint, but affected vendor/product fields and CPEs are listed as n/a. Public references include the vendor download page and a GitHub gist. Avoid relying on scanner CPE matching alone.
Mitigation direction
- Check TOTOLINK guidance and firmware downloads for an updated release.
- Disable remote management from the internet where possible.
- Restrict admin access to trusted internal networks or VPN only.
- Isolate or replace affected devices if no fixed firmware is available.
- Review router settings and credentials after remediation.
Validation and detection
- Inventory TOTOLINK A7000R devices and record firmware versions.
- Confirm whether firmware is 9.1.0u.6115_B20201022.
- Check whether management interfaces are reachable from untrusted networks.
- Review access logs for unusual administrative activity.
- Track vendor and CVE updates for patch clarification.
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-288: 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-2025-51452 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/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.
SSVC decision data
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:H/I:H/A:H3.95.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/171/ids/36.htmlCVE reference, mitre
- https://gist.github.com/lin-3-start/5b20f6fbe3aa0c3fc75f320cd589182aCVE reference, mitre
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.
Authentication Bypass Using an Alternate Path or Channel
Authentication Bypass Using an Alternate Path or Channel represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.