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CVE-2009-1473

25
FAUCET Score

CVE-2009-1473 describes a critical cryptographic vulnerability in the ATEN KH1516i and KN9116 IP KVM switches. The Windows and Java client programs for these devices, with specific firmware versions, improperly implement RSA cryptography during symmetric session-key negotiation. This flaw allows remote attackers to decrypt network traffic or conduct man-in-the-middle attacks by repeating client-side calculations. The vulnerability carries a CVSS score of 10.0, indicating maximum severity with network-based attacks, low complexity, and complete compromise of confidentiality, integrity, and availability. Despite its critical nature, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.063CPE matchmatch criteria
cpe:2.3:h:aten:kh1516i_ip_kvm_switch:1.0.063:-:java_client:*:*:*:*:*
1.0.063CPE matchmatch criteria
cpe:2.3:h:aten:kh1516i_ip_kvm_switch:1.0.063:-:windows_client:*:*:*:*:*
1.1.104CPE matchmatch criteria
cpe:2.3:h:aten:kn9116_ip_kvm_switch:1.1.104:-:java_client:*:*:*:*:*
1.1.104CPE matchmatch criteria
cpe:2.3:h:aten:kn9116_ip_kvm_switch:1.1.104:-:windows_client:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.19%
Probability of exploitation in next 30 days
EPSS Percentile
86.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0319 is in the 76th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

secunia.com / advisories/35241
exchange.xforce.ibmcloud.com / vulnerabilities/50849
securityfocus.com / archive/1/503827/100/0/threaded
securityfocus.com / bid/35108