Security readout for executives and security teams
This issue can let an unauthenticated network attacker crash Core FTP/SFTP Server by abusing an overly long value in a domain-related field. The business impact is service outage, not confirmed data theft or code execution. Public exploit information exists, but the provided sources do not show active exploitation. Organizations running Core FTP/SFTP Server, especially internet-facing FTP/SFTP services, are the likely exposure. Confirm exact installed builds because the supplied data conflicts on affected version labeling. Systems not running this product are not affected based on the provided sources. Treat this as a high-priority availability risk for any exposed Core FTP/SFTP Server deployment. It can interrupt file-transfer operations and has public exploit details. Prioritize asset confirmation, exposure reduction, and vendor update review, especially for internet-facing servers. Mitigation focus: Check Core FTP vendor guidance and available updates for the affected server build.; Restrict FTP/SFTP server access to trusted networks where business permits.; Reduce internet exposure using firewall, VPN, or access-control rules..
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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ATT&CK lookup starting points
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CWE-787: Exact CWE lookup
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Open ATT&CK lookupCVE-2019-25654 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
- High
- CVSS
- 8.7 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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.
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:N/VI:N/VA:H/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
8.7HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-46371CVE reference · exploit
- VulnCheck Advisory: Core FTP/SFTP Server 1.2 Denial of Service via Buffer OverflowCVE reference · 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.
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.