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CVE-2002-2261

Sendmail 8.9.0 through 8.12.6 allows remote attackers to bypass relaying restrictions enforced by...

7.5 HighFix available

CVE-2002-2261 is a high vulnerability (CVSS 7.5) in Sendmail, published December 31, 2002. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.00%, the 80th percentile. Fixed in sendmail 8.12.7.

Sendmail 8.9.0 through 8.12.6 allows remote attackers to bypass relaying restrictions enforced by the 'check_relay' function by spoofing a blank DNS hostname.

Exploit likelihood

2.00%Unchanged since Feb 4, 2022

What each source reports

NVD Score used 7.5

Sendmail 8.9.0 through 8.12.6 allows remote attackers to bypass relaying restrictions enforced by the 'check_relay' function by spoofing a blank DNS hostname.

Record: CVE-2002-2261
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness: CWE-264
Updated: 2026-11-02

CVE List No score

Sendmail 8.9.0 through 8.12.6 allows remote attackers to bypass relaying restrictions enforced by the 'check_relay' function by spoofing a blank DNS hostname.

Record: CVE-2002-2261
Updated: 2026-11-02

EUVDEUVD-2002-2240 No score

Sendmail 8.9.0 through 8.12.6 allows remote attackers to bypass relaying restrictions enforced by the 'check_relay' function by spoofing a blank DNS hostname.

Record: EUVD-2002-2240
Updated: 2026-11-03

GitHub AdvisoriesGHSA-vqjv-jhp4-724w No score

Sendmail 8.9.0 through 8.12.6 allows remote attackers to bypass relaying restrictions enforced by...

Sendmail 8.9.0 through 8.12.6 allows remote attackers to bypass relaying restrictions enforced by the 'check_relay' function by spoofing a blank DNS hostname.

Record: GHSA-vqjv-jhp4-724w
Updated: 2026-11-02

OSV No score

Sendmail 8.9.0 through 8.12.6 allows remote attackers to bypass relaying restrictions enforced by the 'check_relay' function by spoofing a blank DNS hostname.

Record: CVE-2002-2261
Updated: 2026-11-02

OSVDEBIAN-CVE-2002-2261 No score

Sendmail 8.9.0 through 8.12.6 allows remote attackers to bypass relaying restrictions enforced by the 'check_relay' function by spoofing a blank DNS hostname.

Record: DEBIAN-CVE-2002-2261
Updated: 2026-11-02

Affected products

sendmail

Affected packages

Affected packages
Package	Affected	Fixed
`sendmail` Debian:12	before 8.12.7	8.12.7
`sendmail` Debian:13	before 8.12.7	8.12.7
`sendmail` Debian:14	before 8.12.7	8.12.7

History

History
When	Changed	Sources
2026-11-03	aliases	EUVD
2026-11-02	created	CVE List, GitHub Advisories, NVD, OSV

References

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