Security readout for executives and security teams
Plain-English summary
CVE-1999-1314 is an old local denial-of-service issue in the union file system for FreeBSD 2.2 and earlier. A local user could trigger a system reload using certain mount_union activity. Business urgency is mainly for legacy or embedded systems still running very old FreeBSD versions.
Executive priority
Treat as a legacy exposure check, not a broad emergency. Prioritize if critical business systems still run FreeBSD 2.2 or earlier, especially with multiple local users or untrusted access. Unsupported systems should be upgraded, isolated, or retired.
Technical view
The CVE describes a union file system flaw affecting FreeBSD 2.2 and earlier, and possibly other operating systems. The reported impact is local denial of service through a sequence of mount_union commands causing system reload. No CVSS, CWE, patch, or detailed affected product list is provided in the supplied sources.
Likely exposure
Exposure is likely limited to systems running FreeBSD 2.2 or earlier with local users able to invoke union file system mounting. Modern environments are unlikely affected unless legacy FreeBSD-derived systems remain in service. The source data is sparse and lists possible other operating systems without naming them.
Exploitation context
The supplied sources describe local exploitation only. There is no evidence in the provided bundle of remote exploitation, public weaponization, or CISA KEV listing. The attacker would need local access and relevant ability to perform mount_union activity.
Researcher notes
The record has weak detail: no CVSS, CWE, references, or vendor advisory are included in the provided data. The phrase “possibly other operating systems” is not specific enough to expand scope. Avoid asserting exploit availability or fixes without additional vendor documentation.
Mitigation direction
- Inventory systems for FreeBSD 2.2 or earlier usage.
- Check FreeBSD or appliance vendor guidance for historical fixes or upgrade paths.
- Limit local shell access on any affected legacy systems.
- Restrict mount-related privileges to trusted administrators only.
- Plan replacement or isolation for unsupported legacy systems.
Validation and detection
- Confirm operating system version on suspected legacy hosts.
- Determine whether union file system support is enabled or used.
- Review which local users can perform mount operations.
- Check logs for unexpected mount_union activity or unexplained reloads.
- Document compensating controls where upgrades are not possible.
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.
CVE-1999-1314 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
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.