CVE-2026-3663

Published: Mar 07, 2026 Last Modified: Mar 10, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 4,8
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
LOW 3,3
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: low
LOW 1,7
Source: [email protected]
Access Vector: local
Access Complexity: low
Authentication: single
Confidentiality: none
Integrity: none
Availability: partial

Description

AI Translation Available

A vulnerability was found in xlnt-community xlnt up to 1.6.1. This issue affects the function xlnt::detail::compound_document_istreambuf::xsgetn of the file source/detail/cryptography/compound_document.cpp of the component XLSX File Parser. Performing a manipulation results in out-of-bounds read. The attack is only possible with local access. The exploit has been made public and could be used. The patch is named 147. It is recommended to apply a patch to fix this issue.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0001
Percentile
0,0th
Updated

EPSS Score Trend (Last 8 Days)

119

Improper Restriction of Operations within the Bounds of a Memory Buffer

Stable
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability
Potential Impacts:
Execute Unauthorized Code Or Commands Modify Memory Read Memory Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory)
Applicable Platforms
Languages: Assembly, C, C++, Memory-Unsafe
Likelihood of Exploit: High
View CWE Details
125

Out-of-bounds Read

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Availability Other
Potential Impacts:
Read Memory Bypass Protection Mechanism Dos: Crash, Exit, Or Restart Varies By Context
Applicable Platforms
Languages: C, C++, Memory-Unsafe
Technologies: ICS/OT
View CWE Details
Application

Xlnt by Xlnt-Community

Product Information
Vendor Xlnt-Community
Product Xlnt
Version Range Affected
To 1.6.1 (inclusive)
cpe:2.3:a:xlnt-community:xlnt:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/oneafter/0128/blob/main/xl3/repro
https://github.com/oneafter/0128/blob/main/xl3/repro
https://github.com/xlnt-community/xlnt/
https://github.com/xlnt-community/xlnt/
https://github.com/xlnt-community/xlnt/issues/139
https://github.com/xlnt-community/xlnt/issues/139
https://github.com/xlnt-community/xlnt/pull/147
https://github.com/xlnt-community/xlnt/pull/147
https://vuldb.com/?ctiid.349552
https://vuldb.com/?ctiid.349552
https://vuldb.com/?id.349552
https://vuldb.com/?id.349552
https://vuldb.com/?submit.764644
https://vuldb.com/?submit.764644