CVE-2023-31998 — A heap overflow vulnerability found in EdgeRouters and Aircubes allows a malicio

A heap overflow vulnerability found in EdgeRouters and Aircubes allows a malicious actor to interrupt UPnP service to said devices.

01What is this vulnerability?

A heap overflow vulnerability found in EdgeRouters and Aircubes allows a malicious actor to interrupt UPnP service to said devices.

02Affected products

Vendor	Product	Versions
Ubiquiti	EdgeRouter	2.0.9-hotfix.6
Ubiquiti	Aircube	2.8.8

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: 2023-07-18T01:40:05.440Z
• Last modified: 2024-10-29T15:44:09.148Z

09References

• community.ui.com — https://community.ui.com/releases/Security-Advisory-Bulletin-033-033/17f7c7c0-83…