CVE-2023-45883 — A privilege escalation vulnerability exists within the Qumu Multicast Extension

A privilege escalation vulnerability exists within the Qumu Multicast Extension v2 before 2.0.63 for Windows. When a standard user triggers a repair of the software, a pop-up window opens with SYSTEM privileges. Standard users may use this to gain arbitrary code execution as SYST

01What is this vulnerability?

A privilege escalation vulnerability exists within the Qumu Multicast Extension v2 before 2.0.63 for Windows. When a standard user triggers a repair of the software, a pop-up window opens with SYSTEM privileges. Standard users may use this to gain arbitrary code execution as SYSTEM.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

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: 2023-10-19T00:00:00.000Z
• Last modified: 2024-09-12T18:26:21.567Z

09References

• www.vidyo.com — https://www.vidyo.com/enterprise-video-management/qumu
• hackandpwn.com — https://hackandpwn.com/disclosures/CVE-2023-45883.pdf