CVE-2026-89077: CWE-303 Incorrect implementation of authentication algorithm in Progress MOVEit Transfer
Description
CVE-2026-89077 is a high-severity vulnerability in Progress MOVEit Transfer's SFTP module caused by an incorrect implementation of the authentication algorithm. It affects versions before 2025.1.6 and versions from 2026.0.0 up to but not including 2026.0.4. The flaw could allow an attacker with low privileges and no user interaction to compromise confidentiality, integrity, and availability of the system. There is no explicit vendor advisory or patch link provided in the data.
CVSS v3.1
Score 7.5high
Affected software
Progress
MOVEit Transfer
pkg:github/progress/moveit-transferRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-89077) involves an incorrect implementation of the authentication algorithm in the SFTP module of Progress MOVEit Transfer. The affected versions are all releases before 2025.1.6 and from 2026.0.0 up to 2026.0.4. The CVSS v3.1 score is 7.5, indicating high severity, with network attack vector, high attack complexity, low privileges required, no user interaction, and impacts on confidentiality, integrity, and availability. No known exploits in the wild or vendor patch information are provided.
Potential Impact
Successful exploitation could lead to a compromise of confidentiality, integrity, and availability of the MOVEit Transfer system. The attacker requires low privileges and no user interaction, but the attack complexity is high. This could allow unauthorized access or disruption of the SFTP service.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor Progress's advisories for updates and apply any official fixes once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ProgressSoftware
- Date Reserved
- 2026-09-10T18:48:00.974Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6acfa0fb2cdf04f656905701
Added to database: 10/14/2026, 15:34:19 UTC
Last enriched: 10/14/2026, 15:48:22 UTC
Last updated: 10/14/2026, 15:49:14 UTC
Views: 5
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