← gociux.comall exploited CVEs

Exploited vulnerability · CISA KEV

Is CVE-2025-14733 exploited? Yes: in CISA KEV since 19 Dec 2025

Gociux · WatchGuard Firebox · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2025-14733, WatchGuard Firebox Out of Bounds Write Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 19 Dec 2025, the day it was published. It is known to be used in ransomware campaigns. It affects WatchGuard Firebox, an internet-facing product of the kind attackers use for initial access. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 19 Dec 2025
ransomwareKnownused in campaigns
EPSStop 5%very likely to be exploited
severity9.3CVSS 4.0 · critical
US federal due26 Dec 2025BOD 22-01 deadline

What it is

WatchGuard 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.

VendorWatchGuard (4 exploited CVEs in KEV)
ProductFirebox
VulnerabilityWatchGuard Firebox Out of Bounds Write Vulnerability
WeaknessCWE-787
Published19 Dec 2025
Added to KEV19 Dec 2025
Reported by (CNA)WatchGuard

What to do

  1. Check whether you run it. Look for Firebox in your asset inventory, including appliances and cloud images. Stack check lists every exploited WatchGuard CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 19 Dec 2025.
  4. Get told next time. Email alerts when CISA adds a CVE for WatchGuard.

Other exploited CVEs in Firebox

References

Questions

Is CVE-2025-14733 being exploited?

Yes. CISA added CVE-2025-14733 to the Known Exploited Vulnerabilities catalog on 19 Dec 2025, which means there is reliable evidence of exploitation in the wild.

Is CVE-2025-14733 used in ransomware attacks?

Yes, CISA lists it as known to be used in ransomware campaigns.

How do I fix CVE-2025-14733?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Check WatchGuard's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Firebox and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in December 2025 · WatchGuard scorecard · act-now radar.

Running WatchGuard in a regulated environment?

We check exposure across your estate, patch or mitigate with your team, and set up detection for what attackers do after exploiting it.

Get in touch →