Kerio WinRoute Firewall before 6.1.4 Patch 2 allows attackers to cause a denial of service (CPU consumption and hang) via unknown vectors in
Kerio WinRoute Firewall before 6.1.4 Patch 2 allows attackers to cause a denial of service (CPU consumption and hang) via unknown vectors involving "browsing the web".
- Published
- Jan 20, 2006
- Updated
- Jun 16, 2026
- EPSS
- 2.0% · 80th percentile
- CWE
- —
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Report tools
Action score
21
Monitor
Low priority for now.
- CVSS
- 20 / 40 · 5.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.0%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| kerio | winroute firewall | cpe:2.3:a:kerio:winroute_firewall |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- kerio winroute firewall5.0.1
- kerio winroute firewall5.0.2
- kerio winroute firewall5.0.3
- kerio winroute firewall5.0.4
- kerio winroute firewall5.0.5
- kerio winroute firewall5.0.6
- kerio winroute firewall5.0.7
- kerio winroute firewall5.0.8
- kerio winroute firewall5.0.9
- kerio winroute firewall5.1
- kerio winroute firewall5.1.1
- kerio winroute firewall5.1.10
- kerio winroute firewall5.1.2
- kerio winroute firewall5.1.3
- kerio winroute firewall5.1.4
- kerio winroute firewall5.1.5
- kerio winroute firewall5.1.6
- kerio winroute firewall5.1.7
- kerio winroute firewall5.1.8
- kerio winroute firewall5.1.9
Same product
kerio: all recordsOther highest-scoring records for the same primary product.
- CVE-2005-4425Unspecified vulnerability in Kerio WinRoute Firewall before 6.1.3 allows remote attackers to cause a denial of service (crash) via certain R32Monitor
- CVE-2005-4157Unspecified vulnerability in Kerio WinRoute Firewall before 6.1.3 allows remote attackers to authenticate to the service using an account th31Monitor
- CVE-2004-2483Kerio WinRoute Firewall before 6.0.9 uses information from PTR queries in response to A queries, which allows remote attackers to poison the26Monitor
- CVE-2006-5420Kerio WinRoute Firewall 6.2.2 and earlier allows remote attackers to cause a denial of service (crash) via malformed DNS responses.21Monitor
- CVE-2006-2267Kerio WinRoute Firewall before 6.2.1 allows remote attackers to cause a denial of service (application crash) via unknown vectors in the "em21Monitor
- CVE-2006-0335Multiple unspecified vulnerabilities in Kerio WinRoute Firewall before 6.1.4 Patch 1 allow remote attackers to cause a denial of service via21Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- P · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- P
Weakness class (CWE)
—
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- secunia.com/advisories/18589
- www.kerio.com/kwf_history.html
- www.osvdb.org/22631
- www.securityfocus.com/bid/16385
- www.vupen.com/english/advisories/2006/0324
- exchange.xforce.ibmcloud.com/vulnerabilities/24317
Vendor advisories and official records. Exploit/PoC links are deliberately left out.