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CVE-2007-4098

17
FAUCET Score

CVE-2007-4098 describes a vulnerability in Tor versions prior to 0.1.2.15, where the software fails to properly differentiate stream identifiers from various exit nodes. This flaw could allow remote attackers, by controlling Tor routers, to inject data into arbitrary communication streams. With a CVSS score of 5.8, this vulnerability has a medium attack complexity and could lead to partial integrity and availability impacts. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this decade-old vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
0.1.0.10CPE matchmatch criteria
cpe:2.3:a:tor:tor:0.1.0.10:*:*:*:*:*:*:*
0.1.0.11CPE matchmatch criteria
cpe:2.3:a:tor:tor:0.1.0.11:*:*:*:*:*:*:*
0.1.0.12CPE matchmatch criteria
cpe:2.3:a:tor:tor:0.1.0.12:*:*:*:*:*:*:*
0.1.0.13CPE matchmatch criteria
cpe:2.3:a:tor:tor:0.1.0.13:*:*:*:*:*:*:*
0.1.0.14CPE matchmatch criteria
cpe:2.3:a:tor:tor:0.1.0.14:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.8MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.90%
Probability of exploitation in next 30 days
EPSS Percentile
77.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0190 is in the 60th percentile among its peer group of 19,955 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, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

archives.seul.org / or/announce/Jul-2007/msg00000.html
Patch
osvdb.org / 46970
secunia.com / advisories/26140
PatchVendor Advisory
securityfocus.com / bid/25035
Patch
vupen.com / english/advisories/2007/2634