Security readout for executives and security teams
Plain-English summary
CVE-2001-0796 is a remote denial-of-service issue in legacy SGI IRIX and FreeBSD systems. A malformed IGMP multicast packet can reportedly crash or disrupt affected systems. This is mainly a concern for organizations still operating very old UNIX infrastructure or exposed multicast-capable network segments.
Executive priority
Treat this as a legacy-infrastructure risk. It is unlikely to affect modern systems, but exposed unsupported hosts could be disrupted remotely. Prioritize discovery, isolation, and retirement planning over emergency response unless affected systems are business-critical.
Technical view
The CVE describes malformed IGMP multicast traffic with a small response delay causing denial of service in SGI IRIX 6.5 through 6.5.12f, possibly earlier, and FreeBSD 3.0. No CVSS score, CWE, patch details, or exploit-status evidence are provided in the source bundle.
Likely exposure
Exposure is likely limited to legacy SGI IRIX or FreeBSD 3.0 hosts that can receive IGMP/multicast traffic from untrusted or insufficiently segmented networks.
Exploitation context
The available sources describe remote denial of service via crafted IGMP traffic. There is no KEV listing and no cited evidence of active exploitation in the provided sources.
Researcher notes
Evidence is sparse and historical. The CVE record and IBM X-Force reference identify the issue, affected platforms, and DoS condition, but do not provide CVSS, patch identifiers, or verified exploitation status. Avoid assuming broader FreeBSD or IRIX version impact beyond the cited ranges.
Mitigation direction
- Identify any SGI IRIX 6.5-6.5.12f, earlier IRIX, or FreeBSD 3.0 systems.
- Check SGI, FreeBSD, or support-provider guidance for historical fixes or workarounds.
- Keep legacy systems off untrusted networks where possible.
- Restrict IGMP/multicast exposure at network boundaries where operationally safe.
- Prioritize replacement or isolation of unsupported operating systems.
Validation and detection
- Inventory hosts for affected IRIX and FreeBSD versions.
- Review network paths that allow IGMP or multicast traffic to legacy systems.
- Confirm whether vendor or internal hardening guidance was applied.
- Monitor legacy segments for unexpected IGMP/multicast traffic.
- Document compensating controls for systems that cannot be upgraded.
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-2001-0796 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
- irix-igmp-dos(7332)CVE reference · vdb-entry, x_refsource_XF
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.