CVE-2008-1887

What it is

Python 2.5.2 and earlier allows context-dependent attackers to execute arbitrary code via multiple vectors that cause a negative size value to be provided to the PyString_FromStringAndSize function, which allocates less memory than expected when assert() is disabled and triggers a buffer overflow.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

6.3% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2008-04-18 17:05 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 22:52 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 6.3% in the next 30 days (EPSS).
• Severity: 9.3 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2008-04-18 17:05 UTC

Last modified

2026-06-16 22:52 UTC

Exploit probability

6.3% · EPSS, next 30 days

Weakness

CWE-120 · Classic buffer overflow

Record status

Modified

Affected

• Python ≤ 2.5.2
• Canonical Ubuntu Linux 6.06
• Canonical Ubuntu Linux 7.04
• Canonical Ubuntu Linux 7.10
• Canonical Ubuntu Linux 8.04
• Debian Linux 4.0

Attack profile CVSS 2.0 · 9.3

Attack vector

Network

Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

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-2008-1887.md and follow it. Check whether this project is affected by CVE-2008-1887. 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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