PHP core RCE vulnerability patches (CVE-2026-109618 and CVE-2026-109619)
CVSSv3 Score: 9.8 CVE-2026-109618PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The subsequent request cleanup procedure may…
Arbitrary file write in grpc phQueryMaster
CVSSv3 Score: 9.4 An Improper limitation of a pathname to a restricted directory ('path traversal') [CWE-22] in FortiSIEM may allow an unauthenticated attacker to execute unauthorized code or commands via specially crafted packets. Revised on 2026-10-13 00:00:00
Broken authorization
CVSSv3 Score: 3.4 A missing authorization vulnerability [CWE-862] in FortiSIEM GUI may allow an authenticated attacker to execute unauthorized code or commands via Specially crafted HTTP requests Revised on 2026-10-13 00:00:00
Double free in signal handler
CVSSv3 Score: 2.1 A Double Free vulnerability [CWE-415] in FortiOS, FortiProxy and FortiSwitch may allow a local authenticated attacker to crash the newcli daemon via crafted CLI commands. Revised on 2026-10-13 00:00:00
Fabric API Authentication bypass
CVSSv3 Score: 4.9 A Use of Hard-coded Cryptographic Key [CWE-321] in FortiSandbox and FortiSandbox Cloud API may allow an unauthenticated attacker to access some endpoints via specially crafted HTTP requests Revised on 2026-10-13 00:00:00
GUI Denial of Service
CVSSv3 Score: 6.7 An Improper Locking vulnerability [CWE-667] in FortiOS may allow an unauthenticated attacker with network access to the device to cause a denial of service of the HTTPS management interface via crafted HTTP requests. Revised on 2026-10-13 00:00:00
Improper access control and session management in the web management interface
CVSSv3 Score: 9.6 An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] in FortiSandbox GUI may allow a remote unauthenticated attacker to bypass authentication via crafted HTTP requests. Revised on 2026-10-13 00:00:00
Multiple Arbitrary File Read/Write via SQL Injection
CVSSv3 Score: 7.9 An Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability [CWE-89] in FortiAnalyzer, FortiManager, FortiManager Cloud and FortiAnalyzer Cloud may allow a low privileged user to execute arbitrary commands via crafted requests. Revised on 2026-10-13 00:00:00
Persistent Denial of Service in Admin Profile
CVSSv3 Score: 4.8 An Uncaught Exception vulnerability [CWE-248] in FortiSandbox may allow a privileged attacker to deny access to the GUI and CLI persistently via crafted HTTP requests. Revised on 2026-10-13 00:00:00
SQL command injection in webmail
CVSSv3 Score: 7.7 An improper neutralization of special elements used in an SQL Command ("SQL Injection") vulnerability [CWE-89] in FortiMail webmail may allow an authenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests. Revised on 2026-10-13 00:00:00
arbitrary command execution in fgfmsd daemon
CVSSv3 Score: 5.3 An improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] in FortiManager fgfmd daemon may allow a remote attacker impersonating a fortimanager cluster node to execute unauthorized code or commands via specially crafted packets. Impersonation of a Fortimanager cluster…
Improper limitation of a pathname to a restricted directory
CVSSv3 Score: 9.8 An Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') [CWE-22] and Improper Neutralization of NULL Byte or NULL Character [CWE-158] vulnerability may allow an unauthenticated attacker to write arbitrary files on the underlying system via crafted HTTP or HTTPS requests.This has been…
Arbitrary process termination from exposed minifilter communication port
CVSSv3 Score: 5.1 An Unverified Ownership Vulnerability [CWE-283] in FortiClient Windows fortimon3 driver may allow an authenticated attacker to terminate arbitrary processes via an exposed minifilter communication port. Revised on 2026-09-08 00:00:00
Broken Access control on Websocket streams
CVSSv3 Score: 5.4 An Improper Access control vulnerability [CWE-284] in FortiSOAR may allow an authenticated attacker with zero permissions to subscribe to websocket streams and topics and to inject broadcast messages to the stream via crafted websocket requests Revised on 2026-09-08 00:00:00
Cron Job Injection in Remote Backup
CVSSv3 Score: 7.2 An Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability [CWE-77] in FortiSandbox may allow a privileged attacker to execute unauthorized code or commands via crafted HTTP requests. Revised on 2026-09-08 00:00:00
Improper Authentication of FortiPAM Server
CVSSv3 Score: 9.6 An improper authentication vulnerability [CWE-287] in the Fortinet Privileged Access Agent Chrome Extension may allow a remote unauthenticated attacker to proxy a user's browser traffic through attacker controlled servers if the user visits a malicious website. Revised on 2026-09-08 00:00:00
JWT used for authentication in web GUI signed with static key
CVSSv3 Score: 9.8 An Inclusion of Sensitive Information in Source Code vulnerability [CWE-540] in FortiMonitorOnSight web portal may allow a remote unauthenticated attacker to bypass authentication via forged or reused JWT Revised on 2026-09-08 00:00:00
Null Pointer Dereference in Log Report
CVSSv3 Score: 2.7 A NULL Pointer Dereference vulnerability [CWE-476] in FortiOS, FortiProxy and FortiPAM may allow an authenticated attacker to crash the httpsd daemon via crafted HTTP requests. Revised on 2026-09-08 00:00:00
Open Redirect on FortiSIEM
CVSSv3 Score: 3.1 An URL redirection to untrusted site ('open redirect') [CWE-601] vulnerability in FortiSIEM may allow an authenticated attacker to cause a redirection to any website via specially crafted HTTP requests Revised on 2026-09-08 00:00:00
Unauthenticated Control of NAT Rules Leading to Exposure of Sensitive Information
CVSSv3 Score: 9.9 An improper access control vulnerability [CWE-284] in FortiSandbox, FortiSandbox Cloud and FortiSandbox PaaS WEB UI may allow an unauthenticated attacker to access sensitive information via crafted HTTP requests. Revised on 2026-09-08 00:00:00
Uncontrolled Resource Consumption in SNMP
CVSSv3 Score: 6.5 A Use of Uninitialized Variable [CWE-457] vulnerability in Fortinet FortiAnalyzer SNMP daemon may allow a remote authenticated attacker with user permission to cause a denial of service via SNMP GETBULK requests. Revised on 2026-09-08 00:00:00
Workflow session email approval process bypass
CVSSv3 Score: 4.9 An improper access control vulnerability [CWE-284] in FortiManager may allow an administrator to bypass the approval process for workflow sessions via crafted HTTP or HTTPs requests. Revised on 2026-09-08 00:00:00
ZTNA Portal Improper Certificate Validation
CVSSv3 Score: 8.1 An improper certificate validation vulnerability [CWE-295] in FortiOS and FortiProxy Agentless ZTNA portal may allow a remote and unauthenticated attacker to perform a Man-in-the-Middle attack on the communication channel between the ZTNA portal and the backend destination website. Revised on 2026-09-08 00:00:00
HTTP/2 Bomb CVE-2026-49975
CVSSv3 Score: 5.8 CVE-2026-49975Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67. Revised on 2026-08-19 00:00:00
Broken access control in the RADIUS type admin group
CVSSv3 Score: 9.8 An Improper Authentication vulnerability [CWE-287] in the FortiWeb Remote Radius Type Admin Authentication configured with specific, non-default settings may allow a remote unauthenticated attacker to login into the Fortiweb GUI/CLI with a random username and password Revised on 2026-08-12 00:00:00
Content-Encoding WAF Evasion
CVSSv3 Score: 5.3 An incomplete list of disallowed inputs [CWE-184] in FortiWeb WAF may allow an unauthenticated attacker to bypass policies via specifically crafted requests. Revised on 2026-08-12 00:00:00
FGFM Authentication Weakening via CLI Configuration
CVSSv3 Score: 8.1 An Authentication Bypass Using an Alternate Path or Channel [CWE-288] vulnerability in FortiManager and FortiManager Cloud may allow a remote unauthenticated attacker to impersonate any FortiGate managed by the FortiManager with a specific CLI option set via crafted FGFM requests if the attacker has a…
Heap overflow in kernel driver due to missing size validation
CVSSv3 Score: 7.3 A buffer copy without checking size of input vulnerability [CWE-120] in FortiClient Windows may allow an unauthenticated attacker in a position to alter or craft DNS responses to the targeted host to execute arbitrary code via malicious packets. Revised on 2026-08-12 00:00:00
Server-Side Request Forgery (SSRF)
CVSSv3 Score: 3.8 A Server-Side request forgery (SSRF) [CWE-918] vulnerability in FortiSIEM GUI may allow an authenticated attacker to send HTTP requests originating from the targeted device via specially crafted HTTP requests Revised on 2026-08-12 00:00:00
Stack buffer overflow in WAD
CVSSv3 Score: 5.6 A Stack-based Buffer Overflow vulnerability [CWE-121] in FortiOS explicit proxy may allow an unauthenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands in the context of the WAD daemon via crafted sockets, only if the explicit proxy is configured…
UI DoS attack
CVSSv3 Score: 5.3 An Allocation of Resources Without Limits or Throttling vulnerability [CWE-770] in FortiOS may allow an unauthenticated attacker to perform a slow HTTP DoS attack on the web interface via crafted HTTP requests. Revised on 2026-08-12 00:00:00
Buffer overread in authd and wad daemon
CVSSv3 Score: 4.3 A buffer over-read vulnerability [CWE-126] in FortiOS, FortiProxy, and FortiSASE may allow an authenticated remote attacker to return a portion of device memory in the redirect response via submitting a specially crafted request. Revised on 2026-07-14 00:00:00
Cross-Site Scripting in Domain parameter
CVSSv3 Score: 5.9 An Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability [CWE-80] in FortiSIEM may allow a privileged administrator to execute unauthorized commands via crafted requests. Revised on 2026-07-14 00:00:00
Header injection in Web Filter warning page
CVSSv3 Score: 3.4 An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability [CWE-113] in FortiOS and FortiProxy may allow an attacker in possession of a valid web filter override token to inject arbitrary headers via tricking a user into clicking on a crafted link.…
Header injection in captive portal authentication form
CVSSv3 Score: 3.1 An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability [CWE-113] in FortiOS and FortiProxy captive portal may allow an attacker able to intercept and modify a user's authentication request to inject arbitrary headers via crafted HTTP requests. Revised on 2026-07-14 00:00:00
Missed certificate verification in AD Connector communication with FortiClient EMS
CVSSv3 Score: 7.5 An Improper Certificate Validation vulnerability [CWE-295] in FortiClient EMS may allow a remote unauthenticated attacker to impersonate an AD Connector via a valid API Key. Revised on 2026-07-14 00:00:00
Out of bounds read in GUI
CVSSv3 Score: 7.5 An out of bounds read [CWE-125] vulnerability in FortiAuthenticator may allow a remote unauthenticated attacker to retrieve sensitive information via a specially crafted request. Revised on 2026-07-14 00:00:00
Path traversal in CLI command allows deletion of root file system
CVSSv3 Score: 5.5 An Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability [CWE-22] in FortiOS, FortiPAM, FortiProxy and FortiSwitch Manager may allow a privileged authenticated attacker with physical access to the device to delete the file system via crafted CLI commands. Revised on 2026-07-14…
SSL-VPN Reflected XSS
CVSSv3 Score: 6.1 An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiOS, FortiProxy, FortiPAM and FortiSwitch-Manager Agentless SSL-VPN may allow an authenticated remote user to execute code or commands via crafted requests. Revised on 2026-07-14 00:00:00
Stack Buffer Overflow in Log Report
CVSSv3 Score: 6.6 A Stack-based Buffer Overflow vulnerability [CWE-121] in FortiOS, FortiProxy and FortiPAM may allow a privileged authenticated attacker who can bypass stack protection and ASLR to execute arbitrary code or commands via crafted HTTP requests. Revised on 2026-07-14 00:00:00
Supers override fails to properly override supervisor address
CVSSv3 Score: 7.5 An Improper Restriction of Communication Channel to Intended Endpoints [CWE-923] vulnerability in FortiSIEM Windows Agent may allow an unauthorized attacker on the same local network to execute arbitrary code via spoofing the supervisors hostname when the Windows device is configured with the 'Supers Override' feature.…
Unauthenticated VNC access exposed on all interfaces
CVSSv3 Score: 8.6 An Exposure of Resource to Wrong Sphere vulnerability [CWE-668] in FortiSandbox may allow an unauthenticated attacker to access the VNC server of VMs performing scanning via network requests. Revised on 2026-07-14 00:00:00
Improper access control in API endpoints
CVSSv3 Score: 6.5 An improper access control vulnerability [CWE-284] in FortiPortal API endpoints may allow a remote privileged attacker with organization user role to obtain sensitive network configuration data via crafted HTTP requests. Revised on 2026-06-09 00:00:00
Restricted CLI escape using Lua
CVSSv3 Score: 6.7 An Internal Asset Exposed to Unsafe Debug Access Level or State vulnerability [CWE-1244] in FortiOS and FortiProxy may allow an authenticated admin to execute lua scripts via crafted CLI commands. Revised on 2026-06-09 00:00:00
Second-Order OS Command Injection via JSON Input on start vnc feature
CVSSv3 Score: 9.8 An improper neutralization of special elements used in an OS command vulnerability [CWE-78] in FortiSandbox, FortiSandbox Cloud and FortiSandbox PaaS WEB UI may allow an unauthenticated attacker to execute unauthorized commands via specifically crafted HTTP requests. Revised on 2026-06-09 00:00:00
LDAP authentication bypass in Agentless VPN and FSSO
CVSSv3 Score: 8.1 An Authentication Bypass by Primary Weakness vulnerability [CWE-305] in FortiOS fnbamd may allow an unauthenticated attacker to bypass LDAP authentication of Agentless VPN or FSSO policy, under specific LDAP server configuration. Revised on 2026-07-04 00:00:00
Insertion of Sensitive 2FA Information in logs and debug command
CVSSv3 Score: 2.7 An Insertion of Sensitive Information into Log File vulnerability [CWE-532] in FortiOS may allow an attacker with at least read-only privileges to retrieve sensitive 2FA-related information via observing logs or via diagnose command. Revised on 2026-06-08 00:00:00
Information Disclosure on SSLVPN endpoint
CVSSv3 Score: 4.3 An Exposure of Sensitive Information to an Unauthorized Actor vulnerability [CWE-200] in FortiOS SSL-VPN web-mode may allow an authenticated user to access full SSL-VPN settings via crafted URL. Revised on 2026-06-15 00:00:00
Vulnerability in OpenSSL library
CVSSv3 Score: 7.5 A security advisory was released affecting the version of OpenSSL library used in some Fortinet products:CVE-2022-0778:The BN_mod_sqrt() function, which computes a modular square root, contains a bug that can cause it to loop forever for non-prime moduli. Internally this function is used when parsing certificates…
HTML injection in WebUI
CVSSv3 Score: 4.9 An improper neutralization of script-related HTML tags in a web page in FortiManager and FortiAnalyzer may allow an attacker to perform a cross site scripting (XSS) attack via the Identify Provider name field. Revised on 2026-10-13 00:00:00
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Son başarılı kontrol: 22.10.2026 13:47. Etkilenen sürüm ve çözüm koşullarını resmî advisory üzerinden doğrulayın.