OpenPPL ppl.nn CUDA Optimizer opt_graph.cc InitQuantization out-of-bounds
CVSS score
5.3
EPSS probability
—
Risk score
0.5
Published
3 h ago
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Vulnerability description
DayBreach AI Explanation
Verified against sourcesSources read
2
Source agreement
0/2
Evidence confidence
%44
Short explanation
In OpenPPL ppl.nn, the CUDA Optimizer component's OptGraph::InitQuantization function can be triggered to read out-of-bounds memory when attacker-controlled per_channel, bit_width, tensor_max, tensor_min, and scale arguments are supplied. The attack can be launched remotely and a public exploit exists. The project does not use versioning, so affected releases are not identified. Patch status is unknown in official sources.
Remotely exploitable memory errors can lead to data leakage or service disruption, raising both confidentiality and availability risks.
What should be done?
- Monitor vendor advisories and security bulletins
- Apply patches promptly when released
- Enforce strict validation of input parameters
- Restrict network exposure of vulnerable components
- Consider migrating to updated or alternative libraries
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Chain of evidence and sources
OptGraph::InitQuantization işlevindeki parametre manipülasyonu, out-of-bounds okuma (CWE‑125, CWE‑119) oluşturur (S0).
Açık CISA KEV listesinde yer almamaktadır ve yama durumu resmi kaynaklarda doğrulanamamıştır (S0).
CVSS skoru ve vektörü kaynaklar arasında çelişmektedir; cvelist 5.3 (CVSS:4.0) ve nvd 6.3 (CVSS:3.1) raporlamaktadır (S1,S2).
Show the technical text from the sources
A vulnerability has been found in OpenPPL ppl.nn up to bb84dc9952809b3a5a0036858a3d9f68af1c83d5. The affected element is the function OptGraph::InitQuantization of the file src/ppl/nn/engines/cuda/optimizer/opt_graph.cc of the component CUDA Optimizer. Such manipulation of the argument per_channel/bit_width/tensor_max/tensor_min/scale leads to out-of-bounds read. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The project was informed of the problem early through an issue report but has not responded yet.
CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CWE: CWE-125, CWE-119
This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-122189 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | OpenPPL | ppl.nn | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 7.5 | CVSS V2_0 | — | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C | CVE CNA |
| 7.5 | CVSS V2 | — | AV:N/AC:L/Au:N/C:P/I:P/A:P | NVD |
| 6.3 | CVSS V3_1 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C | CVE CNA |
| 6.3 | CVSS V3_0 | MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C | CVE CNA |
| 6.3 | CVSS V31 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L | NVD |
| 5.3 | CVSS V4_0 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | CVE CNA |
| 2.1 | CVSS V40 | LOW | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-122189 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-122189 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
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