Security readout for executives and security teams
CVE-2011-0520 affects MaraDNS and can let a remote attacker crash the DNS service with an overly long hostname containing many labels. The public record also says arbitrary code execution may be possible, but the provided sources do not prove exploitation in the wild. Likely exposure is limited to environments still running legacy MaraDNS, especially Internet-facing DNS resolvers or authoritative servers. Asset owners should not assume only the two named versions are affected because the CVE description says probably other versions. Prioritize remediation for any exposed MaraDNS service because DNS outages can directly affect availability, and the flaw is remotely reachable. Risk is lower for retired, isolated, or non-MaraDNS environments. Mitigation focus: Apply Debian DSA-2196 or equivalent vendor/distribution MaraDNS update where applicable.; Check current MaraDNS vendor guidance for fixed versions before changing production systems.; Restrict MaraDNS exposure to intended networks and DNS roles only..
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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Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2011-0520 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
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
- maradns-compressadddlabelpoints-bo(64885)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
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