DEV Community

#emailsecurity

Posts

đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.
An email attachment hands the sender root on Cisco's gateway

An email attachment hands the sender root on Cisco's gateway

Comments
3 min read
45,644 Exchange Servers on HTTP: Measuring a Mail Tier That Cannot Be Hidden

45,644 Exchange Servers on HTTP: Measuring a Mail Tier That Cannot Be Hidden

Comments
2 min read
5,950 secure email gateways on the wire: the CVE-2026-76461 scoping problem

5,950 secure email gateways on the wire: the CVE-2026-76461 scoping problem

Comments
2 min read
FortiMail on the Open Internet: 3,911 Fingerprints and 5,322 Title Matches for a Mail Gateway Under Active Exploitation

FortiMail on the Open Internet: 3,911 Fingerprints and 5,322 Title Matches for a Mail Gateway Under Active Exploitation

Comments
2 min read
CVE-2026-62911 and 22,000 Unpatched Exchange Servers

CVE-2026-62911 and 22,000 Unpatched Exchange Servers

Comments
2 min read
Small Businesses Can Run Professional Email on Aliases Alone

Small Businesses Can Run Professional Email on Aliases Alone

Comments
7 min read
700 US county domains, one DNS record apart from safe

700 US county domains, one DNS record apart from safe

Comments
2 min read
DMARC aggregate reports as infrastructure change detection

DMARC aggregate reports as infrastructure change detection

1
Comments
2 min read
Measuring Internet-Exposed Email Security Gateways With ZoomEye

Measuring Internet-Exposed Email Security Gateways With ZoomEye

Comments
3 min read
From p=none to Enforcement: A Working Sequence for DMARC Rollout

From p=none to Enforcement: A Working Sequence for DMARC Rollout

Comments
4 min read
Why a Single Email Is Enough to Root a Cisco Secure Email Gateway

Why a Single Email Is Enough to Root a Cisco Secure Email Gateway

Comments
4 min read
The quiet DoS bug in Cisco's email gateway hardening release

The quiet DoS bug in Cisco's email gateway hardening release

Comments
3 min read
What a resource lifetime flaw actually is, using CVE-2026-20353 as the example

What a resource lifetime flaw actually is, using CVE-2026-20353 as the example

Comments
3 min read
From path traversal to denial of service: the full CVE set behind Cisco's email gateway patch

From path traversal to denial of service: the full CVE set behind Cisco's email gateway patch

Comments
2 min read
Cisco Secure Email Gateway: five critical flaws in one hardening release (CVE-2026-76440)

Cisco Secure Email Gateway: five critical flaws in one hardening release (CVE-2026-76440)

Comments
3 min read
đź‘‹ Sign in for the ability to sort posts by relevant, latest, or top.