CVE-2005-4591

Email Filter vulnerability

CVSS

7.5

EPSS

5.5%

EPSS pct

92th

Exploited

No known

Heap-based buffer overflow in bogofilter 0.96.2, 0.95.2, 0.94.14, 0.94.12, and other versions from 0.93.5 to 0.96.2, when using Unicode databases, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via "invalid input sequences" that lead to heap corruption when bogofilter or bogolexer converts character sets.

Affected vendor

Bogofilter

Affected product

Email Filter

CVSS vector

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

Published

2005-12-31

Risk analysis

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

Its EPSS score of 5.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2005-4591

Confirm whether Bogofilter Email Filter is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2005-4591.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2005-4591

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2005-4591 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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