What’s Vulnerable › Vulnerabilities

CVE-2025-3121: PyTorch torch.jit.jit_module_from_flatbuffer memory corruption

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-04-02 · updated 2026-06-17
• Weakness: CWE-119

Description

A vulnerability classified as problematic has been found in PyTorch 2.6.0. Affected is the function torch.jit.jit_module_from_flatbuffer. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.

Affected products

• PyTorch: 2.6.0

References

• https://github.com/pytorch/pytorch/issues/149800
• https://github.com/pytorch/pytorch/issues/149800#issue-2940240700
• https://vuldb.com/?ctiid.303012
• https://vuldb.com/?id.303012
• https://vuldb.com/?submit.525049

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