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CVE-2006-1173

16
FAUCET Score

CVE-2006-1173 describes a denial-of-service vulnerability in Sendmail versions prior to 8.13.7. This flaw allows remote attackers to crash the Sendmail service by sending deeply nested, malformed multipart MIME messages, leading to stack exhaustion during 8-bit to 7-bit conversion. The vulnerability has a CVSS score of 5.0 (medium severity) with a low attack complexity, requiring no authentication, and primarily impacts availability by preventing message delivery and potentially consuming disk space with core dumps. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.13.6CPE matchmatch criteria
cpe:2.3:a:sendmail:sendmail:*:*:*:*:*:*:*:*
8.8.8CPE matchmatch criteria
cpe:2.3:a:sendmail:sendmail:8.8.8:*:*:*:*:*:*:*
8.9.0CPE matchmatch criteria
cpe:2.3:a:sendmail:sendmail:8.9.0:*:*:*:*:*:*:*
8.9.1CPE matchmatch criteria
cpe:2.3:a:sendmail:sendmail:8.9.1:*:*:*:*:*:*:*
8.9.2CPE matchmatch criteria
cpe:2.3:a:sendmail:sendmail:8.9.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.17%
Probability of exploitation in next 30 days
EPSS Percentile
91.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0517 is in the 88th percentile among its peer group of 23,725 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: sendmail-0:8.12.11-4.RHEL3.6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: sendmail-0:8.13.1-3.RHEL4.5
View patch

Vendor Advisories (1)

redhatCVE-2006-1173Important

security flaw

Jun 14, 2006

References

ftp.freebsd.org / pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:17.sendmail.asc
patches.sgi.com / support/free/security/advisories/20060601-01-P
patches.sgi.com / support/free/security/advisories/20060602-01-U.asc
itrc.hp.com / service/cki/docDisplay.do
lists.suse.com / archive/suse-security-announce/2006-Jun/0006.html
secunia.com / advisories/15779
PatchVendor Advisory
secunia.com / advisories/20473
PatchVendor Advisory
secunia.com / advisories/20641
Vendor Advisory
secunia.com / advisories/20650
Vendor Advisory
secunia.com / advisories/20651
Vendor Advisory
secunia.com / advisories/20654
Vendor Advisory
secunia.com / advisories/20673
Vendor Advisory
secunia.com / advisories/20675
Vendor Advisory
secunia.com / advisories/20679
Vendor Advisory
secunia.com / advisories/20683
Vendor Advisory
secunia.com / advisories/20684
Vendor Advisory
secunia.com / advisories/20694
Vendor Advisory
secunia.com / advisories/20726
Vendor Advisory
secunia.com / advisories/20782
Vendor Advisory
secunia.com / advisories/21042
Vendor Advisory
secunia.com / advisories/21160
Vendor Advisory
secunia.com / advisories/21327
Vendor Advisory
secunia.com / advisories/21612
Vendor Advisory
secunia.com / advisories/21647
Vendor Advisory
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/27128
issues.rpath.com / browse/RPL-526
slackware.com / security/viewer.php
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11253
sunsolve.sun.com / search/document.do
PatchVendor Advisory
support.avaya.com / elmodocs2/security/ASA-2006-148.htm
www-1.ibm.com / support/search.wss
www-1.ibm.com / support/search.wss
debian.org / security/2006/dsa-1155
fortinet.com / FortiGuardCenter/advisory/FG-2006-18.html
f-secure.com / security/fsc-2006-5.shtml
gentoo.org / security/en/glsa/glsa-200606-19.xml
kb.cert.org / vuls/id/146718
Third Party AdvisoryUS Government Resource
mandriva.com / security/advisories
openbsd.org / errata38.html
osvdb.org / 26197
redhat.com / support/errata/RHSA-2006-0515.html
securityfocus.com / archive/1/437928/100/0/threaded
securityfocus.com / archive/1/438241/100/0/threaded
securityfocus.com / archive/1/438330/100/0/threaded
securityfocus.com / archive/1/440744/100/0/threaded
securityfocus.com / archive/1/442939/100/0/threaded
securityfocus.com / bid/18433
Patch
sendmail.com / security/advisories/SA-200605-01.txt.asc
PatchVendor Advisory
vupen.com / english/advisories/2006/2189
vupen.com / english/advisories/2006/2351
vupen.com / english/advisories/2006/2388
vupen.com / english/advisories/2006/2389
Vendor Advisory
vupen.com / english/advisories/2006/2390
vupen.com / english/advisories/2006/2798
vupen.com / english/advisories/2006/3135