EUVD Vulnerability Catalog
EUVD-2026-64001
Severity: CRITICAL
Base Score: 9.2
CVSS Version: 4.0
Vulnerability Description
llama.cpp before b8585 contains a use-after-free vulnerability in the RPC server's GRAPH_RECOMPUTE handler that allows unauthenticated remote attackers to achieve arbitrary read and write access by storing a computation graph, freeing referenced buffers, and reclaiming freed memory with attacker-controlled content. Attackers can send RPC requests to trigger re-execution of stored graphs with dangling pointers, enabling full remote code execution without requiring authentication or user interaction.
CVSS Vector Analysis
Below is the complete, human-readable breakdown of the CVSS metric string: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
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Attack Vector (AV): Network
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Attack Complexity (AC): High
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Attack Requirements (AT): None
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Privileges Required (PR): None
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User Interaction (UI): None
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Vulnerability Confidentiality Impact (VC): High
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Vulnerability Integrity Impact (VI): High
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Vulnerability Availability Impact (VA): High
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Subsequent Confidentiality Impact (SC): None
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Subsequent Integrity Impact (SI): None
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Subsequent Availability Impact (SA): None
Affected Vendors & Systems
Vendor
ggml-org
References & Advisory Links
- https://github.com/ggml-org/llama.cpp/releases/tag/b8585
- https://github.com/ggml-org/llama.cpp/pull/21175
- https://github.com/ggml-org/llama.cpp/commit/389c7d4955ba55c7418afaebf7c23d9ed64ef707
- https://www.vulncheck.com/advisories/llama-cpp-use-after-free-in-rpc-graph-recompute-handler
- https://nvd.nist.gov/vuln/detail/CVE-2026-39909
Metadata Profile
Database Authority
European Union Agency for Cybersecurity (ENISA) EUVD
Assigner
VulnCheck
EPSS Probability
0
Known Aliases
CVE-2026-39909
GHSA-fpvp-jgx3-4w9q
Published On
2026-08-21
Last Updated
2026-08-21