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Code injection in Sony Neural Network Libraries encode_decode_param

Priority MEDIUM 57CWE-74Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.

Summary

Sony Neural Network Libraries up to and including 1.39.0 has a flaw in the load_param_in_txt function of python/src/nnabla/utils/cli/encode_decode_param.py. Improper control of code generation (CWE-94) lets manipulated input lead to code injection. A remote attacker without privileges can trigger it, but a user must interact with the attack. A public exploit is available and might be used, and the vendor did not respond to early disclosure.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

A vulnerability was identified in Sony Neural Network Libraries up to 1.39.0. This affects the function load_param_in_txt of the file python/src/nnabla/utils/cli/encode_decode_param.py of the component Encode Param Command Handler. Such manipulation leads to code injection. It is possible to launch the attack remotely. The exploit is publicly available and might be used. 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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00234 14th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SonyNeural Network Libraries1.0; 1.1; 1.2; 1.3; 1.4; 1.5; 1.6; 1.7; 1.8; 1.9; 1.10; 1.11; 1.12; 1.13; 1.14; 1.15; 1.16; 1.17; 1.18; 1.19; 1.20; 1.21; 1.22; 1.23; 1.24; 1.25; 1.26; 1.27; 1.28; 1.29; 1.30; 1.31; 1.32; 1.33; 1.34; 1.35; 1.36; 1.37; 1.38; 1.39.0—No fix listedCNA
  • Neural Network Libraries VendorSony Affected 1.0; 1.1; 1.2; 1.3; 1.4; 1.5; 1.6; 1.7; 1.8; 1.9; 1.10; 1.11; 1.12; 1.13; 1.14; 1.15; 1.16; 1.17; 1.18; 1.19; 1.20; 1.21; 1.22; 1.23; 1.24; 1.25; 1.26; 1.27; 1.28; 1.29; 1.30; 1.31; 1.32; 1.33; 1.34; 1.35; 1.36; 1.37; 1.38; 1.39.0 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:sony:neural_network_libraries:*:*:*:*:*:*:*:*——Sony
  • cpe:2.3:a:sony:neural_network_libraries:*:*:*:*:*:*:*:* Versions — — ·Sony

Remediation

No fixed version is listed for Sony Neural Network Libraries, and the maintainer no longer supports the affected products.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-26 Threatist record created from CVE-2026-116103
  2. 2026-10-27 Alias added: GHSA-c33q-pqr3-xjv6
  3. 2026-10-29 CISA SSVC decision points changed
  4. 2026-10-29 Priority changed: LOW → MEDIUM

References

  • TI-2020-19020 Sony IPELA Network Camera 1.82.01 Remote Stack Buffer Overflow via ftpclient.cgi CVSS 4.0CRITICAL 9.3
  • TI-2025-04593 Sony SNC-M1 Administrative Interface default credentials CVSS 4.0CRITICAL 9.2
  • TI-2020-19058 Sony BRAVIA Digital Signage 1.7.8 Client-Side Protection Bypass via IDOR CVSS 4.0MEDIUM 6.9
  • TI-2020-19057 Sony BRAVIA Digital Signage 1.7.8 Unauthenticated System API Information Disclosure CVSS 4.0MEDIUM 6.9
  • TI-2022-03095 Sony PS4/PS5 exFAT UVFAT_readupcasetable heap-based overflow CVSS 3.1MEDIUM 6.8
  • TI-2020-19059 Sony BRAVIA Digital Signage 1.7.8 Unauthenticated Remote File Inclusion CVSS 4.0MEDIUM 5.3
See all 90 →

Sources