Dashboard / CVE-2025-5449

CVE-2025-5449

MEDIUM
MEDIUM Priority: 0.07 BB Relevance: 63/100
Published: 2025-07-25 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

Description

A flaw was found in the SFTP server message decoding logic of libssh. The issue occurs due to an incorrect packet length check that allows an integer overflow when handling large payload sizes on 32-bit systems. This issue leads to failed memory allocation and causes the server process to crash, resulting in a denial of service.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
— — 0.11.0
libssh libssh 0.11.0
libssh libssh 0.11.1

References & Advisories (8)

https://bugzilla.redhat.com/show_bug.cgi?id=2369705
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

1.03%
Raw Score 0.010270
Percentile 63.8%
Date 2026-11-05

Intelligence Sources

mitre ref →
nvd ref →

External Links