CVE-2011-1547: n/a vulnerability

CVE-2011-1547: Multiple stack consumption vulnerabilities in the kernel in NetBSD 4.0, 5.0 before 5.0.3, and 5.1 before 5....

Multiple stack consumption vulnerabilities in the kernel in NetBSD 4.0, 5.0 before 5.0.3, and 5.1 before 5.1.1, when IPsec is enabled, allow remote attackers to cause a denial of service (memory corruption and panic) or possibly have unspecified other impact via a crafted (1) IPv4 or (2) IPv6 packet with nested IPComp headers.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 22:28 UTC (UTC+00:00)

Security readout for executives and security teams

A remote party could crash certain NetBSD systems if IPsec is enabled. The issue is triggered by specially crafted IPv4 or IPv6 traffic using nested IPComp headers. The clearest business risk is service outage from kernel panic; the record also notes possible unspecified other impact. Exposure is likely limited to legacy NetBSD deployments with IPsec enabled and reachable by untrusted IPv4 or IPv6 traffic. Systems not running the affected NetBSD versions, or not using IPsec, are not indicated as affected by the supplied sources. Prioritize remediation for internet-facing or partner-facing legacy NetBSD systems using IPsec. The main expected impact is outage, but kernel memory corruption and unspecified other impact justify prompt action where exposure exists. Mitigation focus: Upgrade NetBSD 5.0 systems to 5.0.3 or later.; Upgrade NetBSD 5.1 systems to 5.1.1 or later.; Replace or retire NetBSD 4.0 systems if still deployed..

Prepared: Jun 24, 2026, 13:28 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 9, 2011, 19:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1Source links

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CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

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