CVE-2006-1173

Sendmail vulnerability

CVSS

5.0

EPSS

5.2%

EPSS pct

92th

Exploited

No known

Sendmail before 8.13.7 allows remote attackers to cause a denial of service via deeply nested, malformed multipart MIME messages that exhaust the stack during the recursive mime8to7 function for performing 8-bit to 7-bit conversion, which prevents Sendmail from delivering queued messages and might lead to disk consumption by core dump files.

Affected vendor

Sendmail

Affected product

Sendmail

CVSS vector

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

Weakness type (CWE)

CWE-399

Published

2006-06-07

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 availability.

Its EPSS score of 5.2% 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-2006-1173

Confirm whether Sendmail Sendmail is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2006-1173.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2006-1173

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