Security readout for executives and security teams
Plain-English summary
MiCode FileExplorer’s embedded SwiFTP server accepts any username and password, allowing an unauthenticated network attacker to access files shared through FTP. Exposed files may be listed, read, changed, or deleted. The project is end-of-life, increasing remediation uncertainty.
Executive priority
Treat reachable deployments as an immediate containment priority because unauthenticated attackers could access or alter exposed files. Identify affected devices, disable or isolate FTP, and plan replacement of the end-of-life application. Prioritize internet-accessible or sensitive-data deployments first.
Technical view
The SwiFTP PASS command handler unconditionally grants access regardless of supplied credentials. The flaw is classified as CWE-303 and scores 9.3 under CVSS 4.0, reflecting network reachability, low complexity, and no required privileges or user interaction. Reported impact is limited to files exposed by the FTP server.
Likely exposure
Systems running net.micode.fileexplorer are at risk when the embedded SwiFTP service is enabled and reachable by untrusted networks. The supplied affected-version value is "0" and default status is unknown, so precise version boundaries cannot be established from available evidence.
Exploitation context
The vulnerability requires network access to the FTP service but no valid account or user interaction. The source bundle does not report known active exploitation, and the CVE is not identified as being in KEV. Absence from KEV does not establish that exploitation has never occurred.
Researcher notes
The supplied evidence identifies unconditional authentication success in the PASS handler and CWE-303. It does not provide reliable affected-version boundaries, a vendor patch, or proof of exploitation in the wild. Validate service reachability and exposed file scope without assuming broader device compromise or availability impact.
Mitigation direction
- Disable the embedded FTP service where it is unnecessary.
- Block untrusted network access to the FTP service.
- Remove or replace FileExplorer because the project is end-of-life.
- Check vendor and advisory guidance for any supported remediation.
- Protect exposed files and restore altered data from trusted backups if necessary.
Validation and detection
- Inventory devices for the net.micode.fileexplorer package.
- Determine whether the embedded SwiFTP server is enabled and listening.
- Confirm firewalls prevent untrusted clients from reaching the FTP service.
- Review FTP and device logs for unexpected authentication or file activity.
- Verify exposed files against trusted copies or backups.
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-303: 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-29515 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
- 9.3 (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:N/SC:N/SI:N/SA: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.
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
9.3CriticalVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
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://github.com/MiCode/FileExplorerCVE reference, VulnCheck · product
- https://www.vulncheck.com/advisories/micode-fileexplorer-swiftp-server-authentication-bypassCVE reference, VulnCheck · third-party-advisory
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.
Incorrect Implementation of Authentication Algorithm
Incorrect Implementation of Authentication Algorithm represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.