CVE Intelligence
Medium Injection

CVE-2026-116103 — Sony Neural Network Libraries Encode Param encode_decode_param.py load_param_in_txt code injection

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.

Published Oct 25, 2026 · Updated Oct 29, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: VulDB

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.
How the score was calculated
  • EPSS 0.2% (30-day exploitation probability)+2
  • Technical severity (medium)+3
  • CISA SSVC: exploitation "poc"+5

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
0.23%
ahead of 14% of scored CVEs · Oct 29, 2026
Affects
Sony
Neural Network Libraries
CVSS base
6.3
Medium · 3 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation
Proof of concept
none · proof-of-concept · active
Automatable
No
can an attacker script the kill-chain steps
Technical impact
Partial
partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

  1. Identify exposed assets running the affected vendor/product/version combinations (Sony Neural Network Libraries).
  2. The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
  3. No fix documented in the sources: reduce exposure and monitor the vendor advisory.
  4. Exploitation requires user interaction: tighten email/web filtering and warn affected users.
  5. Search available logs for exploit probes matching the vulnerability class (injection), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
Sony Neural Network Libraries version 1.30version 1.21version 1.22version 1.23version 1.24version 1.25version 1.26version 1.27
and 32 more version 1.28version 1.29version 1.20version 1.31version 1.32version 1.33version 1.34version 1.35version 1.36version 1.37version 1.38version 1.39.0version 1.10version 1.1version 1.2version 1.3version 1.4version 1.5version 1.6version 1.7version 1.8version 1.9version 1.0version 1.11version 1.12version 1.13version 1.14version 1.15version 1.16version 1.17version 1.18version 1.19
Vulnerable CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactScored by
5.3 CVSS 4.0 Medium — — VulDB via CVE Program (cve.org) e CISA ADP
2.1 CVSS 4.0 Low — — cna@vuldb.com via NIST National Vulnerability Database
6.3 CVSS 3.1 Medium 2.8 3.4 cna@vuldb.com via NIST National Vulnerability Database
6.3 CVSS 3.1 Medium — — GitHub, Inc. via GitHub Security Advisories
6.3 CVSS 3.1 Medium — — VulDB via CVE Program (cve.org) e CISA ADP
6.3 CVSS 3.0 Medium — — VulDB via CVE Program (cve.org) e CISA ADP
7.5 CVSS 2.0 High 10.0 6.4 cna@vuldb.com via NIST National Vulnerability Database
7.5 CVSS 2.0 High — — VulDB via CVE Program (cve.org) e CISA ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L (score shown at the top: cna@vuldb.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-74 · Injection

Other CVEs with this weakness →

EPSS over time FIRST

Oct 26, 2026 → Oct 29, 2026 · 4 reading(s) · max 0.23%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

  • Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
  • Look for parameters with command/query metacharacters and unexpected child processes of the service.
web/proxy/WAF logsnetwork IDS/IPSapplication logsendpoint telemetry (EDR)

Timeline

What happened to this CVE, newest first.

  • 2026
  • SSVC assessment updated
    Oct 29, 2026 · CVE Program (cve.org) e CISA ADP
  • Source status changed · Received → Deferred
    Oct 26, 2026 · NIST National Vulnerability Database
  • Affected products added · sony/neural network libraries
    Oct 25, 2026 · CVE Program (cve.org) e CISA ADP
  • Record published
    Oct 25, 2026
  • CVSS changed · 6.3
    Oct 25, 2026 · NIST National Vulnerability Database
  • Source status changed · → Received
    Oct 25, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 25, 2026 · Alertas do Telegram
  • CVE published
    Oct 25, 2026 · VulDB

Source activity

Repeated readings are counted rather than listed.

  • 2× References added · Oct 25, 2026 – Oct 29, 2026
  • 1× Official description updated · Oct 25, 2026 – Oct 25, 2026

References

6 on the record

Elsewhere on this site

Sony
every CVE for this vendor
Injection
same class
CWE-74
other pages naming this weakness

Related CVEs (same products)

  • CVE-2026-116104 Sony Neural Network Libraries NNP Converter utils.py func_set_nnabla_version_decorate code injection 4d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No fixed version, patch or mitigation documented.
  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-116103 is "Sony Neural Network Libraries Encode Param encode_decode_param.py load_param_in_txt code injection", rated Medium. It affects Neural Network Libraries (Sony); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 6.3 describes technical severity. EPSS 0.23% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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