Medium severity · published Oct 26, 2026
CVE-2026-116104
Sony Neural Network Libraries NNP Converter utils.py func_set_nnabla_version_decorate code injection
New
6.3
CVSS
0.2%
EPSS
No
On KEV
Description
A security flaw has been discovered in Sony Neural Network Libraries up to 1.39.0. This impacts the function func_set_nnabla_version_decorate of the file python/src/nnabla/utils/converter/utils.py of the component NNP Converter. Performing a manipulation of the argument function.type results in code injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NN
Neural Network Libraries · Sony
1.0; 1.1; 1.2; 1.3; 1.4; 1.5; +34 more · source: vendor
Affected product
NN
Neural Network Libraries
Sony
More from Neural Network Libraries
9.8
CVE-2019-10844
nbla/logger.cpp in libnnabla.a in Sony Neural Network Libraries (aka nnabla) through v1.0.14 relies on the HOME environment variable, which might be untrusted
6.3
CVE-2026-116103
Sony Neural Network Libraries Encode Param encode_decode_param.py load_param_in_txt code injection