Security readout for executives and security teams
This flaw can leak ProFTPD server memory to configured RADIUS servers when the mod_radius module is used. The disclosed data could include sensitive information from process memory. It is rated high because exploitation is network reachable and requires no user interaction, but the provided sources do not show confirmed active exploitation. Exposure is most likely where ProFTPD versions earlier than 1.3.7c are deployed with mod_radius enabled for RADIUS-backed authentication or accounting. Systems not using mod_radius are less likely to be exposed, based on the provided description. Treat this as a high-priority patching item for internet-facing or externally reachable FTP services using RADIUS. It is mainly a confidentiality risk, not a service-takeover claim, but leaked server memory can create downstream credential or data exposure concerns. Mitigation focus: Upgrade ProFTPD to 1.3.7c or a later vendor-supported fixed release.; Apply operating-system vendor security updates, including Gentoo GLSA-202305-03 where applicable.; Confirm mod_radius is disabled or removed where RADIUS integration is not required..
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-401: 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-2021-46854 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
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A: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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/proftpd/proftpd/issues/1284CVE reference
- https://github.com/proftpd/proftpd/pull/1285CVE reference
- https://bugs.gentoo.org/811495CVE reference
- GLSA-202305-03CVE reference · vendor-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.
Missing Release of Memory after Effective Lifetime
Missing Release of Memory after Effective Lifetime represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.