Lucene search
+L
Catalog
Vendors
Products
Timeline
Vulnerabilities
Sources
Documentation
Blog
Glossary
FAQ
Brand assets
Assessment
Agents dashboard
Agent Scanning
API Scanning
Assessment API
Alerts
Email notifications
Webhook notifications
Alerts API
SBOM package analysis
Assessment
Vulnerability Intelligence
Exploits
Alerts
Datasets
MCP
White Label
Security Automation SDK
MCP for AI Agents
Plans & Pricing
API Reference
Settings
Sign in

sendmail: Fix of CVE-2021-3618

🗓️ 28 Oct 2026 10:55:04Reported by CloudLinuxType 
cloudlinux
 cloudlinux🔗 repo.cloudlinux.com👁 2 Views

HTTP commands accepted after STARTTLS in sendmail allows ALPACA cross-protocol attack.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ibm
IBM Security Bulletins		Security Bulletin: IBM Observability with Instana (OnPrem) is affected by multiple security vulnerabilities
30 Aug 202413:25
–ibm
ibm
IBM Security Bulletins		Security Bulletin: IBM Watson Discovery for IBM Cloud Pak for Data affected by vulnerability in Nginx
3 Aug 202219:30
–ibm
ibm
IBM Security Bulletins		Security Bulletin: A security vulnerability in NGINX ffects IBM Cloud Automation Manager
16 Sep 202118:10
–ibm
ibm
IBM Security Bulletins		Security Bulletin: IBM Robotic Process Automation for Cloud Pak is vulnerable to cross-protocol attacks due to sendmail (CVE-2021-3618)
31 Jul 202318:46
–ibm
ibm
IBM Security Bulletins		Security Bulletin: Vulnerabilities in Apache Kafka and NGINX affect IBM Spectrum Discover
8 Jan 202217:15
–ibm
ibm
IBM Security Bulletins		Security Bulletin: A security vulnerability in NGINX affects IBM Cloud Pak for Multicloud Management Managed Services
9 Nov 202118:19
–ibm
altlinux
ALT Linux		Security fix for the ALT Linux 9 package nginx version 1.22.0-alt1
15 Jul 202200:00
–altlinux
altlinux
ALT Linux		Security fix for the ALT Linux 10 package nginx version 1.22.0-alt1
14 Jul 202200:00
–altlinux
attackerkb
attackerkb		CVE-2021-3618
23 Mar 202220:15
–attackerkb
nessus
Tenable Nessus		Amazon Linux 2022 : sendmail, sendmail-cf, sendmail-milter (ALAS2022-2022-171)
4 Nov 202200:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Centos6i686sendmail8.14.4sendmail-8.14.4-9.el6_8.1.tuxcare.els1.src.rpm
Centos6x86_64sendmail8.14.4sendmail-8.14.4-9.el6_8.1.tuxcare.els1.src.rpm
Centos6noarchsendmail-cf8.14.4sendmail-8.14.4-9.el6_8.1.tuxcare.els1.src.rpm
Centos6i686sendmail-devel8.14.4sendmail-8.14.4-9.el6_8.1.tuxcare.els1.src.rpm
Centos6x86_64sendmail-devel8.14.4sendmail-8.14.4-9.el6_8.1.tuxcare.els1.src.rpm
Centos6noarchsendmail-doc8.14.4sendmail-8.14.4-9.el6_8.1.tuxcare.els1.src.rpm
Centos6i686sendmail-milter8.14.4sendmail-8.14.4-9.el6_8.1.tuxcare.els1.src.rpm
Centos6x86_64sendmail-milter8.14.4sendmail-8.14.4-9.el6_8.1.tuxcare.els1.src.rpm

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

Book a demo
28 Oct 2026 10:55Current
7.4High risk
Vulners AI Score7.4
CVSS 25.8
CVSS 3.17.4
EPSS0.02027
sendmailALPACA cross-protocol attackSTARTTLSHTTP commandsunix
2