Security readout for executives and security teams
CVE-2011-0709 is a Linux kernel bridge multicast crash bug. A remote IGMP packet can trigger a NULL pointer dereference and crash a system using the affected bridge multicast code. The sources identify the issue as fixed before Linux 2.6.35-rc5, but provide no CVSS score or evidence of active exploitation. Exposure is most likely on legacy Linux systems using kernel bridge multicast functionality and reachable by untrusted IGMP traffic. Modern supported distributions are likely patched, but embedded, appliance, or long-lived 2.6-era kernels need specific verification. Treat this as a legacy infrastructure availability risk. It is not documented as actively exploited here, but exposed unpatched bridge systems could be remotely crashed. Prioritize internet-adjacent, appliance, virtualization, or network-edge Linux hosts first. Mitigation focus: Upgrade to a kernel version containing the 2.6.35-rc5 fix or vendor backport.; Check distribution security advisories for the exact fixed package version.; Prioritize legacy bridge hosts exposed to untrusted multicast or IGMP traffic..
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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CVE-2011-0709 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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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
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