> CVE-2026-48977 [HIGH]

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PUBLISHED
2026-09-17 21:17
MODIFIED
2026-09-17 21:17
CVSS_SCORE V3
7.7
EPSS (Prob. Exploit)
0.48%
Top 60.4%
DATA SOURCES:
NVD 🔗 2026-09-17 CWE MITRE 🔗 2026-10-01 FIRST EPSS 🔗 2026-10-15 OSV 🔗 2026-09-21

> DESCRIPTION

OpenSlide is a C library for reading whole slide image files. From 3.4.1 until 4.0.1, OpenSlide's parse_level0_xml() processing in src/openslide-vendor-ventana.c accepts nonpositive row or column tile counts from a crafted Ventana BIF file. The invalid counts produce attacker-controlled relative memory offsets and allow arbitrary values to be written at those offsets, affecting all supported platforms and configurations and resulting in a crash or potential arbitrary code execution. This issue is fixed in version 4.0.1.

> 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:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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
High (H)
Conditions spécifiques doivent être réunies pour exploiter
PR (Privilèges Requis)
Privileges Required
Low (L)
Authentifié avec compte utilisateur basique
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-123 CWE-823 CWE-1284

> CWE DETAILED DESCRIPTIONS

CWE-123: Write-what-where Condition - Any condition where the attacker has the ability to write an arbitrary value to an arbitrary location, often as the result of a buffer overflow. | CWE-823: Use of Out-of-range Pointer Offset - The product performs pointer arithmetic on a valid pointer, but it uses an offset that can point outside of the intended range of valid memory locations for the resulting pointer. | CWE-1284: Improper Validation of Specified Quantity in Input - The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

OpenSlide: Arbitrary memory write with crafted Ventana BIF file

AFFECTED PACKAGES:
Unknown / Unknown
2 versions affected
ALIASES:
GHSA-mxg2-48g7-fmwc

> HISTORIQUE DES MODIFICATIONS

Première apparition
17/09/2026 21:17
Source: NVD
📊 ENRICHISSEMENT 01/10/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-123: Write-what-where Condition - Any condition where the attacker has the ability to write an arbitrary value to an arbitrary location, often as the result of a buffer overflow. | CWE-823: Use of...
Total des modifications: 1 Dernière mise à jour: 3 weeks ago

> REFERENCES

https://github.com/openslide/openslide/commit/2be88bd782d9fff46de8e56a99baca523e...
https://github.com/openslide/openslide/pull/751
https://github.com/openslide/openslide/releases/tag/v4.0.1
https://github.com/openslide/openslide/security/advisories/GHSA-mxg2-48g7-fmwc
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