Description
llama.cpp b5854 before b11275 contains an integer overflow vulnerability in gguf_init_from_reader that bypasses the CVE-2025-53630 size check when padding near-SIZE_MAX tensor sizes. Attackers can supply a crafted GGUF file whose tensor size pads to zero, causing an undersized data blob and out-of-bounds reads by consumers.
Published: 2026-10-27
Score: 6.9 Medium
EPSS: < 1% Very Low
KEV: No
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Remediation

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History

Tue, 27 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 27 Oct 2026 08:15:00 +0000

Type Values Removed Values Added
First Time appeared Ggml-org
Ggml-org llama.cpp
Vendors & Products Ggml-org
Ggml-org llama.cpp

Tue, 27 Oct 2026 04:30:00 +0000

Type Values Removed Values Added
Description llama.cpp b5854 before b11275 contains an integer overflow vulnerability in gguf_init_from_reader that bypasses the CVE-2025-53630 size check when padding near-SIZE_MAX tensor sizes. Attackers can supply a crafted GGUF file whose tensor size pads to zero, causing an undersized data blob and out-of-bounds reads by consumers.
Title llama.cpp b5854 before b11275 Integer Overflow in gguf_init_from_reader
First Time appeared Ggml
Ggml llama.cpp
Weaknesses CWE-190
CPEs cpe:2.3:a:ggml:llama.cpp:*:*:*:*:*:*:*:*
Vendors & Products Ggml
Ggml llama.cpp
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Ggml Llama.cpp
Ggml-org Llama.cpp
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-27T14:14:10.931Z

Reserved: 2026-10-27T00:10:22.076Z

Link: CVE-2026-116840

cve-icon Vulnrichment

Updated: 2026-10-27T13:42:19.659Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-27T01:19:07.217

Modified: 2026-10-27T15:59:46.587

Link: CVE-2026-116840

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-27T08:45:14Z

Weaknesses
  • CWE-190

    Integer Overflow or Wraparound