CVE-2026-43618

Published: Mag 20, 2026 Last Modified: Mag 20, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,1
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
HIGH 8,1
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: high

Description

AI Translation Available

Rsync version 3.4.2 and prior contain an integer overflow vulnerability in the compressed-token decoder where a 32-bit signed counter is not checked for overflow, allowing a malicious sender to trigger an overflow that causes the receiver process to read and return data from outside the intended buffer bounds. Attackers can exploit this vulnerability to disclose process memory contents including environment variables, passwords, heap and stack data, and library memory pointers, significantly reducing ASLR effectiveness and facilitating further exploitation.

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
0,0004
Percentile
0,1th
Updated

Single Data Point

Only one EPSS measurement is available for this CVE. Trend analysis requires multiple data points over time.

125

Out-of-bounds Read

Draft
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: Memory-Unsafe, C, C++
Technologies: ICS/OT
View CWE Details
190

Integer Overflow or Wraparound

Stable
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality Access Control Other
Potential Impacts:
Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Memory) Dos: Instability Modify Memory Execute Unauthorized Code Or Commands Bypass Protection Mechanism Alter Execution Logic Dos: Resource Consumption (Cpu)
Applicable Platforms
Languages: Not Language-Specific, C
View CWE Details
https://github.com/RsyncProject/rsync/releases/tag/v3.4.3
https://github.com/RsyncProject/rsync/security/advisories/GHSA-g37v-g3gj-pmwq
https://www.vulncheck.com/advisories/rsync-integer-overflow-information-disclos…