CVE-2021-31245

omr-admin.py in openmptcprouter-vps-admin 0.57.3 and earlier compares the user provided password...

5.9 Medium

omr-admin.py in openmptcprouter-vps-admin 0.57.3 and earlier compares the user provided password with the original password in a length dependent manner, which allows remote attackers to guess the password via a timing attack.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

2.09%Up 0.8 points since May 7, 2021

What each source reports

NVD Score used 5.9

Record: CVE-2021-31245
CVSS 3.1: 5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:P/I:N/A:N
Weakness: CWE-287
Updated: 2026-11-02

CVE List No score

Record: CVE-2021-31245
Updated: 2026-11-02

EUVDEUVD-2021-18157 No score

Record: EUVD-2021-18157
Updated: 2026-11-03

GitHub AdvisoriesGHSA-xj46-h769-7fq6 No score

omr-admin.py in openmptcprouter-vps-admin 0.57.3 and earlier compares the user provided password...

Record: GHSA-xj46-h769-7fq6
Weakness: CWE-287
Updated: 2026-11-02

Affected products

openmptcprouter

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-31245 is a medium vulnerability (CVSS 5.9) in Openmptcprouter, published May 6, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.09%, the 81st percentile. No source names a fixed version.