Privilege escalation via use-after-free
Published Sep 15, 2023 · Updated Oct 30, 2025
Use-after-free in Microsoft Edge (Chromium-based) before 117.0.2045.31 allows remote attackers to gain elevated privileges. Microsoft identifies freed-memory reuse as the flaw but has not disclosed the affected component or object-lifetime sequence. Exploitation requires user interaction with attacker-controlled network content and can compromise confidentiality, integrity, and availability.
Summary
What happened
Use-after-free in Microsoft Edge (Chromium-based) before 117.0.2045.31 allows remote attackers to gain elevated privileges. Microsoft identifies freed-memory reuse as the flaw but has not disclosed the affected component or object-lifetime sequence. Exploitation requires user interaction with attacker-controlled network content and can compromise confidentiality, integrity, and availability.
The record
- CVE
- CVE-2023-36735
- Published
- Sep 15, 2023
- Updated
- Oct 30, 2025
- Vendor
- Microsoft
- Product
- Microsoft Edge (Chromium-based)
- Classifications
- CWE-416, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 15, 2023CVE publishedPublication date reported by the CVE source.
- Oct 30, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0.0 <117.0.2045.31
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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