CVE-2025-29815
Published: 04 April 2025
Summary
CVE-2025-29815 is a high-severity Use After Free (CWE-416) vulnerability in Microsoft Edge Chromium. Its CVSS base score is 7.6 (High).
Operationally, ranked in the top 21.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2025-29815 is a use-after-free vulnerability, tracked under CWE-416, that affects Microsoft Edge (Chromium-based). The flaw resides in the browser's handling of memory operations and carries a CVSS 3.1 score of 7.6, reflecting network attack vectors with low complexity, low-privileged access, and required user interaction.
An authorized attacker positioned on the network can trigger the condition through crafted content delivered to a victim user, resulting in arbitrary code execution. Successful exploitation grants the attacker high impact on confidentiality and integrity along with partial availability consequences within the context of the targeted Edge process.
Microsoft's Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29815 supplies official guidance and patch information for the issue. The associated EPSS scores remain low, with a current value of 0.0113 and a peak of 0.0139.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-9659
Vulnerability details
Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.