Latest publications of type Security Advisories

2026-019: Critical Vulnerability in GitLab Community and Enterprise Editions

Thu, 22 Oct 2026 11:14:22 CEST

On 21 October 2026, GitLab published a security advisory addressing several vulnerabilities among which a critical flaw that could allow an unauthenticated user to execute arbitrary code on a GitLab server.
CERT-EU recommends organisations to update affected assets as soon as possible, prioritising internet facing assets, and to run an assessment to identify compromised assets.

2026-018: Critical Vulnerabilities in PHP

Wed, 21 Oct 2026 17:20:18 CEST

On 20 October 2026, the PHP project announced an upcoming security release addressing two critical vulnerabilities in PHP. Public reports indicated that these vulnerabilities could lead to remote code execution.
The PHP team released the fixes today, 21 October 2026 at 13:30 UTC, in PHP versions 8.5.12, 8.4.27, 8.3.36 and 8.2.35. Both vulnerabilities can allow unauthenticated remote code execution. Technical details are now being discussed publicly, and initial proofs of concept (PoCs) have begun to circulate. This raises the likelihood that attackers are already exploiting the vulnerabilities.
CERT-EU advises organisations to patch affected assets immediately. Where that is not feasible, organisations should consider isolating internet-facing applications from public networks until a fix is applied and verified.

2026-017: Critical Vulnerability in Cisco Secure Email Gateway

Thu, 15 Oct 2026 11:38:20 CEST

On 14 October 2026, Cisco published a security advisory addressing a critical vulnerability affecting the Advanced Malware Protection (AMP) feature of Cisco Secure Email Gateway. This vulnerability could allow an unauthenticated, remote attacker to write arbitrary files and execute commands with root privileges on the underlying operating system.
The Cisco PSIRT is aware of active exploitation of this vulnerability.
CERT-EU strongly recommends updating the Content Scanner Tools package or upgrading Cisco AsyncOS Software to a fixed release as soon as possible, prioritising appliances reachable from the internet. CERT-EU also recommends checking all affected appliances for indicators of compromise.

2026-016: Critical Vulnerability in GitLab CE and EE

Mon, 12 Oct 2026 14:57:02 CEST

On 12 October 2026, GitLab released versions 19.4.2, 19.3.4 and 19.2.8 of GitLab Community Edition (CE) and Enterprise Edition (EE), fixing 24 security issues among which a critical vulnerability that could allow an unauthenticated attacker to execute arbitrary code on the server.
CERT-EU strongly recommends upgrading self-managed GitLab CE/EE instances to a fixed version as soon as possible, starting with internet-facing instances.

2026-015: Critical Vulnerability in Multiple Atlassian Products

Wed, 07 Oct 2026 09:52:48 CEST

On 5 October 2026, Atlassian published a security advisory addressing a critical arbitrary file access vulnerability. It affects Bitbucket Data Center, Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center, Crowd Data Center, Crucible and Fisheye.
CERT-EU strongly recommends upgrading all affected installations to a fixed version as soon as possible, starting with instances accessible from the internet. CERT-EU also recommends checking access logs for signs of exploitation.

2026-014: Critical Vulnerabilities in Citrix NetScaler ADC and Gateway

Sun, 27 Sep 2026 19:40:52 CEST

On 27 September 2026, Citrix published a security bulletin addressing 8 vulnerabilities affecting customer-managed Citrix NetScaler ADC and Citrix NetScaler Gateway, among which 2 critical unauthenticated Remote Code Execution (RCE) vulnerabilities. Citrix has confirmed active exploitation of these 2 critical vulnerabilities in the wild.
CERT-EU recommends updating affected software and running a compromise assessment on those exposed on the internet.

2026-013: Critical Vulnerability in F5 BIG-IP APM

Tue, 22 Sep 2026 18:52:36 CEST

On 22 September 2026, F5 published an advisory addressing a critical vulnerability affecting its BIG-IP APM product. The vendor confirmed active exploitation in the wild.
CERT-EU recommends taking appropriate actions as soon as possible.

2026-012: Critical Vulnerabilities in Check Point Products

Thu, 10 Sep 2026 10:20:06 CEST

On 9 September 2026, Check Point released emergency security updates addressing two critical vulnerabilities affecting Check Point Security Gateway, Security Management Server, and Spark Firewall deployments configured to use Remote Access VPN or Site-to-Site VPN. Both vulnerabilities carry a CVSS score of 9.8 and could allow an unauthenticated, remote attacker to execute arbitrary code on affected appliances.
CERT-EU strongly recommends applying the available hotfixes as soon as possible, prioritising internet-facing and perimeter appliances.

2026-011: Critical Vulnerabilities in SAP Kernel and NetWeaver Message Server

Wed, 09 Sep 2026 15:07:59 CEST

On 8 September 2026, as part of its September Security Patch Day, SAP released Security Notes addressing two critical vulnerabilities affecting a broad range of SAP products[3]. The most severe, CVE-2026-44756 (CVSS 10.0), is a memory corruption vulnerability in SAP Extended Passport (EPP) processing, nicknamed "OVERPASS" by the Onapsis Research Labs (ORL), which discovered and responsibly disclosed it[3]. The second, CVE-2026-58240 (CVSS 9.8), nicknamed "S4GET", is a missing authentication check in the SAP NetWeaver Message Server[6].
Both are remotely exploitable without authentication. According to the reporting researchers, successful exploitation of either can result in arbitrary operating system command execution under the account that owns the SAP installation, leading to full compromise of the affected system and the business data it holds[6].
CERT-EU strongly recommends applying SAP Security Notes 3747649 and 3759472 as soon as possible.

2026-010: Critical Vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway

Wed, 19 Aug 2026 18:13:47 CEST

On 19 August 2026, Citrix published a security advisory addressing multiple critical vulnerabilities in NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway).
CERT-EU recommends updating affected devices as soon as possible.