CVE-2009-1789

Eggdrop vulnerability

CVSS

4.3

EPSS

8.5%

EPSS pct

94th

Exploited

No known

mod/server.mod/servmsg.c in Eggheads Eggdrop and Windrop 1.6.19 and earlier allows remote attackers to cause a denial of service (crash) via a crafted PRIVMSG that causes an empty string to trigger a negative string length copy. NOTE: this issue exists because of an incorrect fix for CVE-2007-2807.

Affected vendor

Eggheads

Affected product

Eggdrop

CVSS vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Published

2009-05-26

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to partial impact to availability.

Its EPSS score of 8.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2009-1789

Confirm whether Eggheads Eggdrop is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2009-1789.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-1789

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-1789 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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