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CVE-1999-0909

24
FAUCET Score

CVE-1999-0909 describes a "Spoofed Route Pointer" vulnerability affecting multihomed Windows systems, specifically Microsoft Terminal Server, Windows 95, Windows 98 SE, and Windows NT. A remote attacker can bypass IP source routing restrictions by sending a malformed packet with IP options. This vulnerability has a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity, requiring no authentication, and potentially leading to partial compromise of confidentiality, integrity, and availability. Despite its age and high severity, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:microsoft:terminal_server:*:*:*:*:*:*:*:*
0aCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_95:0a:*:*:*:*:*:*:*
0bCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_95:0b:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_98se:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
12.01%
Probability of exploitation in next 30 days
EPSS Percentile
95.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.1201 is in the 93rd percentile among its peer group of 51,455 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

docs.microsoft.com / en-us/security-updates/securitybulletins/1999/ms99-038
support.microsoft.com / default.aspx
securityfocus.com / bid/646