Security readout for executives and security teams
Plain-English summary
CVE-2010-20115 is a critical memory corruption flaw in Arcane Software Vermillion FTP Daemon up to version 1.31. A remote attacker with direct access to the FTP service could potentially run code on the server. This is primarily a legacy exposure risk, but public exploit references exist.
Executive priority
Treat as urgent if Vermillion FTP Daemon is present or internet-facing. For most environments, priority is rapid discovery because this appears to affect old software, but any confirmed exposure should be isolated or removed promptly.
Technical view
The flaw is triggered by a malformed FTP PORT command and is described as an out-of-bounds array access during parsing, corrupting stack memory. CVSS v4.0 is 9.3 with network attack vector, low complexity, no privileges, and no user interaction. Sources note a Windows-service constraint limiting attempts.
Likely exposure
Exposure is likely limited to legacy systems running Vermillion FTP Daemon vftpd up to 1.31 with reachable FTP service. Public internet exposure would sharply increase risk. Source metadata for affected versions is incomplete or inconsistent, so validation should rely on asset discovery and product evidence.
Exploitation context
The bundle cites public exploit references and IPS signatures from third parties. KEV is false, and no provided source states active exploitation. Exploitation requires direct access to the FTP service, not credentials or user interaction.
Researcher notes
The main evidence supports a stack memory corruption issue in FTP PORT parsing. Public exploit references increase practical risk, but the supplied data does not prove current exploitation. The affected-product metadata includes anomalies, so do not rely solely on CPE or version fields.
Mitigation direction
- Identify and retire Vermillion FTP Daemon instances where possible.
- Restrict FTP service access to trusted networks only.
- Check vendor or archival guidance for any fixed release information.
- Use IDS/IPS coverage where available for Vermillion PORT-command attack signatures.
- Replace unsupported legacy FTP software with maintained alternatives.
Validation and detection
- Inventory hosts exposing FTP and identify Vermillion FTP Daemon banners or binaries.
- Confirm whether any instance is version 1.31 or earlier.
- Review firewall rules for public or broad internal FTP exposure.
- Check IDS/IPS logs for Vermillion PORT-command signature hits.
- Document uncertainty where product version cannot be proven.
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-704: 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-787: 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-2010-20115 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:H/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:H/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:H/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://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/vermillion_ftpd_port.rbCVE reference, VulnCheck · exploit
- https://www.exploit-db.com/exploits/11293CVE reference, VulnCheck · exploit
- https://www.broadcom.com/support/security-center/attacksignatures/detail?asid=23681CVE reference, VulnCheck · third-party-advisory
- https://www.juniper.net/us/en/threatlabs/ips-signatures/detail.FTP:EXPLOIT:VERMILLION-PORT-OF.htmlCVE reference, VulnCheck · third-party-advisory
- https://web.archive.org/web/20100416140657/http://www.global-evolution.info/news/files/vftpd/vftpd.txtCVE reference, VulnCheck · technical-description, exploit
- https://web.archive.org/web/20100213162028/http://www.softsea.com/review/Vermillion-FTP-Daemon.htmlCVE reference, VulnCheck · product
- https://www.vulncheck.com/advisories/vermillion-ftp-daemon-port-command-memory-corruptionCVE 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 Type Conversion or Cast
Incorrect Type Conversion or Cast represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.