CVE-2007-2765

What it is

blockhosts.py in BlockHosts before 2.0.3 does not properly parse daemon log files, which allows remote attackers to add arbitrary deny entries to the /etc/hosts.allow file and cause a denial of service by adding arbitrary IP addresses to a daemon log file, as demonstrated by logging in through ssh using a login name containing certain strings with an IP address, which is not properly handled by a regular expression, a related issue to CVE-2006-6301.

At a glance

Exploitability

Can be exploited over the network with a login. High risk of service disruption.

Exploit odds

1.5% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2007-05-18 22:30 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 22:40 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 1.5% in the next 30 days (EPSS).
• Severity: 6.8 MEDIUM (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2007-05-18 22:30 UTC

Last modified

2026-06-16 22:40 UTC

Exploit probability

1.5% · EPSS, next 30 days

Record status

Modified

Affected

• Ac Zoom Blockhosts ≤ 2.0.2

Attack profile CVSS 2.0 · 6.8

Attack vector

Network

Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Complete

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-2007-2765.md and follow it. Check whether this project is affected by CVE-2007-2765. 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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