CVE-2007-1103

4.3 MEDIUM 2% exploit odds No fix listed

What it is

Tor does not verify a node's uptime and bandwidth advertisements, which allows remote attackers who operate a low resource node to make false claims of greater resources, which places the node into use for many circuits and compromises the anonymity of traffic sources and destinations.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 1.8% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2007-02-26 17:28 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 22:36 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.8% in the next 30 days (EPSS).
Severity: 4.3 MEDIUM (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2007-02-26 17:28 UTC
Last modified: 2026-06-16 22:36 UTC
Exploit probability: 1.8% · EPSS, next 30 days
Record status: Modified

Affected

Tor ≤ 0.1.1.26

Attack profile CVSS 2.0 · 4.3

Attack vector: Network
Complexity: Medium
Authentication: None
Confidentiality: Partial
Integrity: None
Availability: None

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2007-1103.md and follow it. Check whether this project is affected by CVE-2007-1103. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record