> CVE-2026-2566 [HIGH]

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PUBLISHED
2026-02-16 18:19
MODIFIED
2026-02-16 18:19
CVSS_SCORE V3
7.3
EPSS (Prob. Exploit)
0.55%
Top 54.0%
DATA SOURCES:
NVD 🔗 2026-02-16 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-08 GITHUB 🔗 2026-11-04

> DESCRIPTION

A security vulnerability has been detected in Wavlink WL-NU516U1 up to 130/260. This affects the function sub_406194 of the file /cgi-bin/adm.cgi. Such manipulation of the argument firmware_url leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/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

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/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
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
High (H)
Authentifié avec privilèges administratifs
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-119 CWE-121

> CWE DETAILED DESCRIPTIONS

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer - The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. | CWE-121: Stack-based Buffer Overflow - The product writes past the end of a buffer that was allocated on the stack.

> GITHUB SECURITY ADVISORY

GHSA-4v9x-cqc5-j645 CRITICAL

Codechecker has an authentication bypass for certain API calls

AFFECTED PACKAGES:
PIP / codechecker
<= 6.27.3

> HISTORIQUE DES MODIFICATIONS

Première apparition
16/02/2026 18:19
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:58
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer - The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buff...
Nouvelle valeur:
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer - The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buff...
📊 ENRICHISSEMENT 01/03/2026 06:46
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer - The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buff...
Total des modifications: 2 Dernière mise à jour: 1 week ago

> REFERENCES

https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/firmware_url.md
https://vuldb.com/?ctiid.346173
https://vuldb.com/?id.346173
https://vuldb.com/?submit.751908
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