WatchGuard
Vulnerability activity for WatchGuard: what is being exploited, what was published lately, and when the next patch release is due.
Last 30 days
- CVEs
- 21
- Critical (CVSS 9+)
- 7
- Exploited (CISA KEV)
- 0
- With exploit code
- 0
Last 90 days
- CVEs
- 21
- Critical (CVSS 9+)
- 7
- Exploited (CISA KEV)
- 0
- With exploit code
- 0
Last 365 days
- CVEs
- 23
- Critical (CVSS 9+)
- 9
- Exploited (CISA KEV)
- 2
- With exploit code
- 2
Exploited now
CVEs on CISA's known-exploited list, newest first. "Days to KEV" counts from the CVE's publication.
- 9.3CriticalDec 19, 2025WatchGuard Firebox Memory corruptionCVE-2025-14733WatchGuard Fireware OS iked process contains an out of bounds write vulnerability in the OS iked process. This vulnerability may allow a remote unauthenticated attacker to execute arbitrary code and affects both the mobile user VPN with IKEv2 and the branch office VPN using IKEv2 when configured with a dynamic gateway peer.Added to KEV Dec 19, 2025Exploited27% likelyExploit code
- 9.3CriticalNov 12, 2025WatchGuard Firebox Memory corruptionCVE-2025-9242WatchGuard Firebox contains an out-of-bounds write vulnerability in the OS iked process that may allow a remote unauthenticated attacker to execute arbitrary code.Added to KEV Nov 12, 2025Exploited92% likelyExploit code
- 8.8HighFeb 24, 2022WatchGuard Firebox and XTM Privilege escalationCVE-2022-23176WatchGuard Firebox and XTM appliances allow a remote attacker with unprivileged credentials to access the system with a privileged management session via exposed management access.Added to KEV Apr 11, 2022 · 46 days after publicationExploited11% likely
- 9.8CriticalMar 4, 2022WatchGuard Firebox and XTM Appliances Memory corruptionCVE-2022-26318On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code.Added to KEV Mar 25, 2022 · 20 days after publicationExploited78% likelyExploit codeMetasploitDetection
Recent
- –UnscoredOct 28, 2026WatchGuardADV-cccs-70f63f520bb3Serial number: AV26-1094 Date: October 28, 2026 As of October 27, 2026, WatchGuard is affected by vulnerabilities in the following products: Fireware OS Multiple versions Mobile VPN with SSL Client Prior to 2026.4 Prior to 12.0 The Cyber Centre encourages users and administrators to review the provided web link and apply any necessary updates as they become available. WatchGuard Security Advisories
- 9.2CriticalOct 27, 2026WatchGuard Fireware OS Memory corruptionCVE-2026-93866An integer overflow vulnerability in the WebSocket connection handling used by WatchGuard Fireware OS's Access Portal allows a remote, unauthenticated attacker to write beyond the bounds of a heap buffer by sending a specially crafted request while the Access Portal feature is enabled.
- 9.2CriticalOct 27, 2026WatchGuard Fireware OS Code / command injectionCVE-2026-93865A missing authentication vulnerability in the Fireware OS FireCluster synchronization daemon allows a remote, unauthenticated attacker to invoke privileged system-level administrative actions by sending a specially crafted request to the FireCluster management IP when the clustering feature is enabled.
- 7.1HighOct 27, 2026WatchGuard Fireware OS Path traversal / file handlingCVE-2026-93864A link following vulnerability in WatchGuard Fireware OS’s firewall daemon allows a local attacker with code execution as a low-privileged system process to overwrite arbitrary files with root privileges, and to tamper with firewall IP set data, by planting a crafted file system object and triggering a list update. Written content is partially constrained.
- 7.2HighOct 27, 2026WatchGuard Fireware OS Memory corruptionCVE-2026-93862An out-of-bounds read vulnerability in the FireCluster Sync processing allows an attacker positioned on the cluster interconnect, such as a compromised cluster peer or an on-path network attacker, to repeatedly crash the firewall's cluster synchronization process by sending specially crafted network traffic, resulting in a sustained denial of service.
- 9.2CriticalOct 27, 2026WatchGuard Fireware OS Memory corruptionCVE-2026-93857A stack-based buffer overflow vulnerability in Fireware OS's SIP proxy allows a remote, unauthenticated attacker to execute arbitrary code by sending a specially crafted request through a policy that uses the SIP proxy.
- 8.7HighOct 27, 2026WatchGuard Fireware OSCVE-2026-93434An XPath injection vulnerability in WatchGuard Fireware OS's SSH authentication process allows a remote, unauthenticated attacker with access to the management SSH interface to extract sensitive configuration data by submitting a specially crafted request.
- 8.7HighOct 27, 2026WatchGuard Fireware OS Code / command injectionCVE-2026-90465A missing authentication vulnerability in the FireCluster Sync processing allows an attacker positioned on the cluster interconnect, such as a compromised cluster peer or an on-path network attacker, to invoke privileged firewall management actions as root by sending a specially crafted request.
- 7.2HighOct 27, 2026WatchGuard Fireware OS Path traversal / file handlingCVE-2026-90464An external control of file path vulnerability in a WatchGuard Fireware OS firewall diagnostic command allows a remote, authenticated attacker with at least read-only (Device Monitor) privileges and access to the management CLI to create, truncate, or overwrite arbitrary files and modify kernel parameters with root privileges by submitting a specially crafted command. Written content is limited to numeric values.
- 8.6HighOct 27, 2026WatchGuard Fireware OS Memory corruptionCVE-2026-90442A stack-based buffer overflow vulnerability in the Fireware OS certd process allows an authenticated attacker with access to the Firebox management interface to crash the certificate management service and potentially execute arbitrary code by sending a specially crafted request.
- 5.6MediumOct 27, 2026WatchGuard Fireware OS Auth bypass / access controlCVE-2026-82332An improper authentication vulnerability in WatchGuard Fireware OS's AuthPoint multi-factor authentication process allows a local, unauthenticated attacker on the appliance to hijack another user's in-progress MFA session by supplying a specially crafted request and convincing the victim user to accept an MFA push notification.
- 5.7MediumOct 27, 2026WatchGuard Mobile VPN with SSL Client Information disclosureCVE-2026-115495Cleartext Transmission of Sensitive Information vulnerability in the WatchGuard Mobile VPN with SSL client for Windows allows a local attacker who can capture loopback traffic to obtain the user’s VPN username and password.
- 6.1MediumOct 27, 2026WatchGuard Fireware OS Memory corruptionCVE-2026-113881A stack-based buffer overflow vulnerability in Fireware OS's VPN Network Access Enforcement process allows an authenticated mobile VPN user to create a denial of service condition and potentially execute arbitrary code as an unprivileged process by sending a specially crafted request.
- 9.2CriticalOct 27, 2026WatchGuard Fireware OS Memory corruptionCVE-2026-112710A heap-based buffer overflow vulnerability exists in the Fireware OS authentication service allows an attacker who controls or intercepts traffic to the configured Active Directory server to create a denial of service condition and potentially execute arbitrary code by returning a specially crafted response.
- 9.2CriticalOct 27, 2026WatchGuard Fireware OS Memory corruptionCVE-2026-112709A heap-based buffer overflow vulnerability in the Fireware OS authentication service allows an attacker who controls or intercepts traffic to the configured Active Directory server to create a denial of service condition and potentially execute arbitrary code by returning a specially crafted response.
- 8.7HighOct 27, 2026WatchGuard Fireware OS Memory corruptionCVE-2026-111107A NULL pointer dereference vulnerability in WatchGuard Fireware OS’s management interface allows a remote, unauthenticated attacker with network access to the management interface to crash the management service by sending a specially crafted login request. Repeated exploitation terminates all active administrator sessions and in-progress management operations and can prevent management of the device. Traffic processing is not affected.
- 6.0MediumOct 27, 2026WatchGuard Fireware OS Auth bypass / access controlCVE-2026-104381A missing authentication vulnerability in Fireware OS's FireCluster state synchronization feature allows an unauthenticated attacker positioned on the cluster synchronization network segment to force premature VPN tunnel termination by sending crafted cluster synchronization traffic.
- 9.5CriticalOct 27, 2026WatchGuard Fireware OS Memory corruptionCVE-2026-103594A stack-based buffer overflow vulnerability in Fireware OS's WireGuard configuration processing allows a remote attacker that has man-in-the-middle TLS-decrypted access between the Firebox and WatchGuard Cloud to create a Denial of Service condition and potentially execute arbitrary code by tampering with a FireCloud Gateway configuration payload.
- 9.1CriticalOct 27, 2026WatchGuard Fireware OS Memory corruptionCVE-2026-103593A stack-based buffer overflow vulnerability in the Fireware OS logging service allows a network-adjacent attacker who can impersonate or intercept traffic to the configured log server to execute arbitrary code with root privileges by presenting a specially crafted certificate.
- 6.9MediumOct 22, 2026WatchGuard Agent Information disclosureCVE-2026-96293A cleartext storage of sensitive information vulnerability in WatchGuard Endpoint Security's Full Disk Encryption feature for macOS allows a local, unprivileged user or process to obtain a managed computer's FileVault Personal Recovery Key by reading a persistently written diagnostic log file left readable by all local users.
- 7.3HighOct 22, 2026WatchGuard Agent Privilege escalationCVE-2026-115253An incorrect permission assignment vulnerability in the WatchGuard Agent's log directory allows a local, authenticated non-administrative user to create, modify, append to, or delete the agent's log files and write other files into the directory. This allows an attacker to tamper with or destroy the agent's security logs and stage further local attacks by placing executable content in a directory owned by a privileged service.
- 9.3CriticalDec 19, 2025WatchGuard Firebox Memory corruptionCVE-2025-14733WatchGuard Fireware OS iked process contains an out of bounds write vulnerability in the OS iked process. This vulnerability may allow a remote unauthenticated attacker to execute arbitrary code and affects both the mobile user VPN with IKEv2 and the branch office VPN using IKEv2 when configured with a dynamic gateway peer.Exploited27% likelyExploit code
- 9.3CriticalNov 12, 2025WatchGuard Firebox Memory corruptionCVE-2025-9242WatchGuard Firebox contains an out-of-bounds write vulnerability in the OS iked process that may allow a remote unauthenticated attacker to execute arbitrary code.Exploited92% likelyExploit code
- 8.8HighFeb 24, 2022WatchGuard Firebox and XTM Privilege escalationCVE-2022-23176WatchGuard Firebox and XTM appliances allow a remote attacker with unprivileged credentials to access the system with a privileged management session via exposed management access.Exploited11% likely
- 9.8CriticalMar 4, 2022WatchGuard Firebox and XTM Appliances Memory corruptionCVE-2022-26318On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code.Exploited78% likelyExploit codeMetasploitDetection
Top products
- Fireware OS17 CVEs in the last year, 7 critical
- WatchGuard Agent2 CVEs in the last year
- Firebox2 CVEs in the last year, 2 critical, 2 exploited
- Mobile VPN with SSL Client1 CVE in the last year
Advisories
Official advisories from the last 90 days that name this vendor's CVEs.
- CCCS (Canada) · Oct 28, 2026WatchGuard security advisory (AV26-1094)ADV-cccs-70f63f520bb3
Counts cover CVEs and advisories Watch Floor tracks, by the date they became news. Updated every 10 minutes.