Microsoft Update Catalog Elevation of Privilege Vulnerability
Priority MEDIUM 51CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from Microsoft.
Summary
Deserialization of untrusted data in Microsoft Update Catalog allows an unauthorized attacker to elevate privileges on the website’s webserver.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01286 70th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Elevation of Privilege
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- —
Timeline
- 2026-10-02 Threatist record created from CVE-2024-49147
- 2026-10-03 Alias added: GHSA-hwhg-f3ff-q3c4
References
Sources
- CVE-2024-49147 · CVE Program
- CVE-2024-49147 · NVD
- FIRST EPSS
- GHSA-hwhg-f3ff-q3c4 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-49147 · Microsoft Security Update Guide
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