The vulnerability of the Exim mail server, related to reading data beyond the allowed buffer limits, allows attackers to gain access to confidential data.
🗓️ 08 Jul 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 13 Views
| Reporter | Title | Published | Views | Family All 31 |
|---|---|---|---|---|
 | CVE-2026-40686 | 30 Apr 202600:00 | – | attackerkb |
 | CVE-2026-40686 | 30 Apr 202600:00 | – | alpinelinux |
 | Astra Linux – Vulnerability in exim4 | 2 Jun 202615:27 | – | astralinux |
 | CVE-2026-40686 | 30 Apr 202613:50 | – | circl |
 | Exim 缓冲区错误漏洞 | 30 Apr 202600:00 | – | cnnvd |
 | CVE-2026-40686 | 30 Apr 202600:00 | – | cve |
 | CVE-2026-40686 | 30 Apr 202600:00 | – | cvelist |
 | [SECURITY] [DSA 6265-1] exim4 security update | 12 May 202614:23 | – | debian |
 | CVE-2026-40686 | 30 Apr 202600:00 | – | debiancve |
 | Debian dsa-6265 : exim4 - security update | 12 May 202600:00 | – | nessus |
10
Node
OR
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
15 Jul 2026 00:00Current
6.3Medium risk
Vulners AI Score6.3
CVSS 25
CVSS 35.3
EPSS0.00246