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Cisco Secure Email Gateway and Secure Email and Web Manager Security Hardening Release: September 2026

Cisco's September 2026 hardening release for Secure Email Gateway and Secure Email and Web Manager patches internally found flaws, one actively exploited.

Cisco issued a security hardening release for Cisco Secure Email Gateway and Secure Email and Web Manager covering multiple internally discovered vulnerabilities, grouped by CWE class to streamline patching. Cisco states one of the vulnerabilities is known to be actively exploited. The exploited issue is the Cisco Secure Email Gateway SQL Injection Vulnerability detailed in a companion advisory. Software updates are available.

Cisco Security Advisories·Sep 14, 16:00 UTC · 2d agoAdvisory in the wild6

Cisco security advisory (AV26-921)

Canadian Cyber Centre warns actively exploited Cisco Secure Email Gateway SQL injection CVE-2026-76461 was added to CISA's KEV database.

The Canadian Centre for Cyber Security advisory AV26-921 (September 14, 2026) covers a SQL injection vulnerability in Cisco Secure Email Gateway (AsyncOS) and Secure Email and Web Manager. Affected versions include AsyncOS/Secure Email Gateway prior to 15.5.5-014, 16.0.4-302, and 16.5.0-780, and Secure Email and Web Manager prior to 15.5.5-006 and 16.5.0-429. Cisco stated CVE-2026-76461 is being actively exploited, and CISA added it to the Known Exploited Vulnerabilities database the same day. Users and administrators are urged to apply updates as they become available.

Canadian Centre for Cyber Security·updated Sep 16, 13:57 UTC · 16h ago·first Sep 14, 19:23 UTC · 2d agoAdvisory in the wild 17 sourcesCVE-2026-76461

CISA warns federal agencies of exploited Google Chrome and open

The Record·Jan 3, 21:36 UTC · Jan 3, 2024Advisory in the wildCVE-2023-7101CVE-2023-7024

Oracle Patches 800+ Vulnerabilities in September 2026 Security Update

Oracle's September 2026 Critical Patch Update fixes 800+ vulnerabilities, including over 100 critical flaws and 240+ remotely exploitable without authentication.

Oracle released 673 new security patches in its September 2026 Critical Security Patch Update, resolving 672 unique CVEs across 17 risk matrices plus 130+ additional CVEs. More than 100 flaws are critical severity and over 240 are remotely exploitable without authentication. Oracle E-Business Suite received the largest batch with 159 patches, followed by Fusion Middleware (153, including 78 unauthenticated remote flaws) and Hyperion (102). Oracle reports no exploitation of these specific flaws but warns attackers routinely exploit unpatched Oracle products.

SecurityWeek·updated Sep 16, 19:29 UTC · 11h ago·first Sep 16, 08:06 UTC · 22h agoAdvisory 3 sources

Kaspersky Security Bulletin: APT predictions 2024

Kaspersky Securelist·Nov 14, 10:00 UTC · Nov 14, 2023AdvisoryCVE-2020-35730CVE-2020-12641CVE-2021-44026+1 CVEs

CISA Warns of Active Exploitation Following FortiBleed Leak

Security Affairs·Jun 20, 08:27 UTC · Jun 20, 2026Advisory in the wild

Cisco Secure Email Secure/Multipurpose Internet Mail Extensions Ciphertext Decryption Vulnerabilities

Cisco released an advisory for S/MIME ciphertext decryption flaws in Secure Email that could let unauthenticated remote attackers recover plaintext via machine-in-the-middle.

Multiple vulnerabilities in the S/MIME decryption functionality of Cisco Secure Email stem from insufficient validation of message integrity. An unauthenticated remote attacker could intercept and modify traffic between email gateways using a machine-in-the-middle technique to obtain plaintext from encrypted messages. No workarounds are available; no CVE identifiers or exploitation status were included in the advisory text.

Cisco Security Advisories·Sep 8, 11:22 UTC · 8d agoAdvisory

AL26-019 - Vulnerabilities impacting Citrix NetScaler ADC and NetScaler Gateway - CVE-2026-19490 and CVE-2026-19489

Canadian Cyber Centre alerts on Citrix NetScaler ADC/Gateway flaws CVE-2026-19490 (authentication bypass) and CVE-2026-19489 (buffer overflow), urging emergency patching.

The Canadian Centre for Cyber Security issued alert AL26-019 covering two Citrix NetScaler vulnerabilities disclosed in a vendor advisory on August 19, 2026. CVE-2026-19490 (CWE-288) allows a remote unauthenticated attacker to bypass authentication on appliances configured as a Gateway for SSL VPN, ICA Proxy, CVPN, RDP Proxy, or as an AAA virtual server. CVE-2026-19489 (CWE-120) is a classic buffer overflow that may cause memory overflow, unpredictable behavior, or denial-of-service conditions. Affected appliances are vulnerable when configured as a SAML IdP; fixed versions include 14.1-73.32, 13.1-63.21, and 13.1-37.277 for FIPS.

Canadian Centre for Cyber Security·Sep 4, 19:00 UTC · 12d agoAdvisory 3 sourcesCVE-2026-19490CVE-2026-19489

Threat Advisory: Opportunistic cyber criminals take advantage of Ukraine invasion

Cisco Talos·Mar 14, 12:00 UTC · Mar 14, 2022AdvisoryCVE-2017-11882

Threat Advisory: SolarWinds supply chain attack

Cisco Talos·Dec 14, 22:20 UTC · Dec 14, 2020Advisory in the wild

Threat Advisory: 3CX Softphone Supply Chain Compromise

Cisco Talos·Mar 30, 22:29 UTC · Mar 30, 2023Advisory

Threat Advisory: Spring4Shell

Cisco Talos·Mar 31, 22:14 UTC · Mar 31, 2022AdvisoryCVE-2022-22965CVE-2022-22963CVE-2010-1622

Threat Advisory: DoubleZero

Cisco Talos·Mar 24, 16:57 UTC · Mar 24, 2022Advisory

7th September – Threat Intelligence Report

Check Point weekly bulletin: exploited SonicWall SMA 1000 zero-days (CVE-2026-83548/49), JFrog Artifactory auth bypass, and a 2.8M-patient Baylor Genetics breach.

Check Point's weekly bulletin covers breaches including Thomson Reuters' C-Track platform (court records across 11 US states and Canada), Baylor Genetics (2.8M patients and employees, SSNs included), Hit casinos in Slovenia, and Dropbox (~5,000 accounts via abused Lenovo email verification). SonicWall patched two exploited SMA 1000 zero-days, including CVE-2026-83548, a CVSS 10.0 pre-authentication SSRF, while JFrog fixed exploited authentication bypass CVE-2026-82329 (CVSS 9.8). Malware and actor coverage includes Gambling Goblin, JSCeal, Mirage Kitten's NodeRabbit/PollCat campaign, and DPRK Contagious Interview macOS activity, plus a FalconFlank privilege-escalation PoC against CrowdStrike Falcon.

Check Point Research·Sep 7, 14:54 UTC · 9d agoAdvisory in the wildCVE-2026-83548CVE-2026-83549CVE-2026-823291

AWS gives its ERP agent deny-by-default rules and a separate identity

Help Net Security·Jul 10, 00:00 UTC · Jul 10, 2026Advisory

CISA warns of attacks against Citrix NetScaler ADC and Gateway Devices

Security Affairs·Jul 21, 20:01 UTC · Jul 21, 2023Advisory in the wildCVE-2023-3519

mySCADA myPRO Manager

CISA advisory reveals unauthenticated privileged API access and arbitrary SMS sending in mySCADA myPRO Manager <=2.1, CVSS 9.8.

CISA advisory ICSA-26-258-03 discloses two vulnerabilities in mySCADA myPRO Manager <=2.1 with aggregate CVSS v3 of 9.8. CVE-2026-73807 (CVSS 9.8) lets unauthenticated network attackers access privileged management functions via the command API, while CVE-2026-82567 exposes an unauthenticated HTTP endpoint that sends arbitrary SMS messages through a connected GSM modem. Deployments span critical manufacturing, energy, food and agriculture, transportation, and water and wastewater sectors. CISA states no known public exploitation has been reported at this time.

CISA Advisories·Sep 15, 12:00 UTC · 1d agoAdvisoryCVE-2026-73807CVE-2026-82567

Inductive Automation Ignition

CISA reports a permissions flaw (CVE-2026-77393, CVSS 8.8) in Inductive Automation Ignition <=8.1.53 letting authenticated users create projects; fixed in 8.1.54.

CISA republished Inductive Automation's advisory for CVE-2026-77393, an incorrect default permissions issue (CWE-276) in Ignition 8.1.53 and earlier. The Gateway "Create Project Role(s)" setting shipped blank, allowing any authenticated user who can execute gateway scripts to create projects. Ignition 8.1.54 restricts project creation to Designer sessions and the 8.3 series is unaffected. CISA notes no known public exploitation of this vulnerability.

CISA Advisories·Sep 3, 12:00 UTC · 13d agoAdvisoryCVE-2026-77393