CVE-2025-2998: PyTorch torch.nn.utils.rnn.pad_packed_sequence memory corruption

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-03-31 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability was found in PyTorch 2.6.0. It has been declared as critical. Affected by this vulnerability is the function torch.nn.utils.rnn.pad_packed_sequence. 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/149622
https://github.com/pytorch/pytorch/issues/149622#issue-2935495265
https://vuldb.com/?ctiid.302047
https://vuldb.com/?id.302047
https://vuldb.com/?submit.524151

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