CVE-2009-4893: n/a vulnerability

CVE-2009-4893: Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remo...

Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 07:17 UTC (UTC+00:00)

Security readout for executives and security teams

This issue affects old UnrealIRCd 3.2beta11 through 3.2.8 systems when the noident option is enabled. A remote attacker could crash the IRC service and may be able to execute code, but the public CVE text does not describe the exact vector. Exposure is most likely on legacy, internet-accessible UnrealIRCd deployments running 3.2beta11 through 3.2.8 with allow::options::noident enabled. Modern or upgraded UnrealIRCd deployments are not shown as affected in the provided bundle. Treat as high priority only where legacy UnrealIRCd remains deployed. The risk is potentially serious, but exposure depends on an old version and a specific configuration option. Mitigation focus: Identify any UnrealIRCd 3.2beta11 through 3.2.8 deployments.; Check UnrealIRCd and distribution advisories for the supported fixed release.; Disable allow::options::noident where operationally possible until upgraded..

Prepared: Jun 28, 2026, 02:01 UTC (UTC+00:00)

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

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 15, 2010, 01:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

1Source links

CVSS and timeline data

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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