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CVE-2009-1490

27
FAUCET Score

CVE-2009-1490 describes a heap-based buffer overflow vulnerability in Sendmail versions prior to 8.13.2. This flaw allows remote attackers to trigger a denial of service (daemon crash) and potentially execute arbitrary code by sending a specially crafted, long X- header, such as X-Testing. The vulnerability has a CVSS score of 5.0, indicating a medium severity, with low attack complexity and no authentication required, leading to a potential impact of partial availability. While not listed on the KEV catalog or currently active on any hot lists, proof-of-concept exploit code is publicly available on ExploitDB, though there is no evidence of widespread community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.13.1.2CPE matchmatch criteria
cpe:2.3:a:sendmail:sendmail:*:*:*:*:*:*:*:*
2.6CPE matchmatch criteria
cpe:2.3:a:sendmail:sendmail:2.6:*:*:*:*:*:*:*
2.6CPE matchmatch criteria
cpe:2.3:a:sendmail:sendmail:2.6:*:nt:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:a:sendmail:sendmail:2.6.1:*:*:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:a:sendmail:sendmail:2.6.1:*:nt:*:*:*:*:*

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
12.61%
Probability of exploitation in next 30 days
EPSS Percentile
95.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-32995 · May 27, 2009
This CVE's current EPSS score of 0.1261 is in the 95th percentile among its peer group of 23,705 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

Vendor Advisories (1)

redhatCVE-2009-1490

sendmail: long first header can overflow into message body

Apr 30, 2009

References

exchange.xforce.ibmcloud.com / vulnerabilities/50355
nmrc.org / ~thegnome/blog/apr09
sendmail.org / releases/8.13.2
PatchVendor Advisory