Security readout for executives and security teams
Plain-English summary
A critical flaw in Comfast CF-N1-S version 2.6.0.1 could let a remote attacker corrupt memory through its web management interface. The supplied severity assessment indicates potential loss of confidentiality, integrity, and availability. Devices whose management interface is reachable from untrusted networks warrant urgent attention. Public exploit disclosure is reported, but active attacks are not established.
Executive priority
Prioritize immediate exposure assessment and containment for affected devices with reachable management interfaces. Assign an owner to obtain vendor remediation guidance and track resolution. The critical rating and reported public exploit justify urgency, but this bundle does not establish organizational exposure, compromise, or an available patch.
Technical view
CVE-2026-94003 describes a stack-based buffer overflow in get_css_path_from_uri within /cgi-bin/mbox-config. The bundle identifies CWE-119 and CWE-121 and reports CVSS 4.0 severity of 10.0. Its vector describes network access, low complexity, no required privileges, and no user interaction, with high impacts to vulnerable and subsequent systems. These impact ratings are not independent confirmation of demonstrated exploitation outcomes.
Likely exposure
The explicitly identified affected product is Comfast CF-N1-S version 2.6.0.1. Exposure depends on attacker access to its web management interface, including through internal networks. Internet-accessible management increases urgency. The wildcard CPE does not establish that every firmware version is affected; other versions and actual deployment reachability remain unverified.
Exploitation context
The bundle reports that an exploit has been publicly disclosed and links to a GitHub issue tagged as an exploit. The CVSS vector includes E:P. KEV is false in the supplied data, and no cited excerpt establishes active exploitation. Public exploit availability should increase response urgency without being described as evidence of attacks in the wild.
Researcher notes
Analysis is limited to the supplied bundle; linked pages were not independently inspected. No vendor advisory, fixed version, detailed prerequisites, or demonstrated exploitation outcomes are provided. Treat the broad CVSS impacts as reported scoring claims. Interim access restrictions reduce exposure but are not a confirmed fix for the underlying overflow.
Mitigation direction
- Check Comfast guidance for confirmed affected versions, available firmware updates, and vendor-approved mitigations; none are named in the bundle.
- As interim exposure reduction, restrict web management access to trusted administrative networks.
- Remove public management exposure where operationally feasible, and verify that access restrictions are effective.
Validation and detection
- Inventory Comfast CF-N1-S devices and verify whether installed firmware is version 2.6.0.1.
- Review firewall rules and management configuration to establish reachability from internet and untrusted internal networks.
- Confirm remediation status against vendor guidance before marking devices resolved.
- Validate access restrictions using authorized, non-destructive connectivity 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-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 lookupCWE-121: 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-2026-94003 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
- 10 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
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
4 official scoresWe 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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P——VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R3.96VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R3.96VulDBAV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR1010VulDBVulnerability scoring details
Base CVSS 4.0 score
10CriticalVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
Base CVSS 3.1 score
10CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
Base CVSS 3.0 score
10CriticalVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
Base CVSS 2.0 score
10CriticalVector: AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- Source timelineVulDB
Advisory disclosed
- Source timelineVulDB
VulDB entry created
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- Source timelineVulDB
VulDB entry last update
- 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
- VDB-407952 | Comfast CF-N1-S Web Management mbox-config get_css_path_from_uri stack-based overflowCVE reference, VulDB · vdb-entry, technical-description
- VDB-407952 | CTI Indicators (IOB, IOC, IOA)CVE reference, VulDB · signature, permissions-required
- CVE-2026-94003 | CVE Analysis and ReportCVE reference, VulDB · third-party-advisory
- Submit #944859 | Comfast CF-N1-S V2.6.0.1 Buffer OverflowCVE reference, VulDB · third-party-advisory
- https://github.com/AdminSafe/CVE/issues/12CVE reference, VulDB · exploit, issue-tracking
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.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.