CVE-2025-2771: BEC Technologies Multiple Routers Authentication Bypass Vulnerability

Routine

MEDIUM 5.3REMOTEMITIGATE

CVE-2025-2771 is a medium-severity flaw (CVSS 5.3) affecting router firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

BEC Technologies Multiple Routers Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of BEC Technologies routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web-based user interface. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerab

Why this priority

Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-287
Published	2025-04-23
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: bectechnologies

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-04-23 17:16 UTCPublished CVE record published
2026-06-17 09:07 UTCUpdated Record last modified

bectechnologies router firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-2771?

router firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-2771 being exploited?

CVE-2025-2771 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-2771 affect?

CVE-2025-2771 affects router firmware. Severity is medium (CVSS 5.3). BEC Technologies Multiple Routers Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of BEC Technologies routers. Authentication is not required to exploit this

How urgent is CVE-2025-2771?

Priority 39/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-2773 HIGH 7.2 MITIGATE BEC Technologies Multiple Routers sys ping Command Injection Remote Code Execution Vulnerability
CVE-2025-2772 MEDIUM 6.5 MITIGATE BEC Technologies Multiple Routers Insufficiently Protected Credentials Information Disclosure Vulnerability
CVE-2025-2770 MEDIUM 6.5 MITIGATE BEC Technologies Multiple Routers Cleartext Password Storage Information Disclosure Vulnerability

References

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