CVE-2023-45173 — IBM AIX 7

IBM AIX 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the NFS kernel extension to cause a denial of service. IBM X-Force ID: 267971.

01What is this vulnerability?

IBM AIX 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the NFS kernel extension to cause a denial of service. IBM X-Force ID: 267971.

02Affected products

Vendor	Product	Versions
IBM	AIX	7.2, 7.3, VIOS 3.1

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-01-11T01:59:38.562Z
• Last modified: 2025-06-17T21:09:12.350Z

09References

• www.ibm.com — https://www.ibm.com/support/pages/node/7105282
• exchange.xforce.ibmcloud.com — https://exchange.xforce.ibmcloud.com/vulnerabilities/267971