CVE-2026-2616

HighPublic PoC

Published: 17 February 2026

Published

17 February 2026

Modified

19 February 2026

KEV Added

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Patch

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CVSS Score 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0032 55.0th percentile

Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-2616 is a high-severity Use of Hard-coded Password (CWE-259) vulnerability in Beetel 777Vr1 Firmware. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Default Accounts (T1078.001); ranked in the top 45.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 CM-6 (Configuration Settings) and IA-5 (Authenticator Management).

Threat & Defense at a Glance

What attackers do: exploitation maps to Default Accounts (T1078.001) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

IA-5 Authenticator Management good match

prevent

Directly requires management of authenticators including changing default or hard-coded credentials and protecting them from unauthorized disclosure, preventing exploitation of embedded credentials in the web management interface.

CM-6 Configuration Settings good match

prevent

Ensures configuration settings for the router's web management interface are securely established and enforced to override or mitigate hard-coded credentials as recommended in advisories.

SI-2 Flaw Remediation good match

prevent

Mandates timely identification and remediation of flaws like hard-coded credentials through patches, configuration changes, or other mitigations despite lack of vendor response.

MITRE ATT&CK Enterprise TechniquesAI

T1078.001 Default Accounts Stealth

Adversaries may obtain and abuse credentials of a default account as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion.

attack.mitre.org →

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

Why these techniques?

Hard-coded credentials enable use of default accounts (T1078.001) for unauthenticated access to the web management interface, classified as exploitation of a public-facing application (T1190).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

NVD Description

A vulnerability has been found in Beetel 777VR1 up to 01.00.09. The impacted element is an unknown function of the component Web Management Interface. The manipulation leads to hard-coded credentials. The attack needs to be initiated within the local network.…

The exploit has been disclosed to the public and may be used. It is advisable to modify the configuration settings. The vendor was contacted early about this disclosure but did not respond in any way.

Deeper analysisAI

CVE-2026-2616 is a vulnerability involving hard-coded credentials in an unknown function of the Web Management Interface component in Beetel 777VR1 routers, affecting versions up to 01.00.09. Classified under CWE-259 (Use of Hard-coded Password) and CWE-798 (Use of Hard-coded Credentials), it carries a CVSS v3.1 base score of 8.8 (AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). The issue was publicly disclosed on 2026-02-17.

Attackers on the adjacent local network (AV:A) can exploit this vulnerability with low complexity and no required privileges or user interaction. Successful exploitation grants high-impact access to confidentiality, integrity, and availability, potentially allowing full compromise of the device, such as executing arbitrary commands or altering configurations via the exposed credentials in the web interface.

Advisories, including those from VulDB and a public GitHub Gist detailing reproduction steps, recommend modifying configuration settings to mitigate the risk, as no patches are available. The vendor was contacted early but provided no response. The exploit code has been publicly disclosed and may be actively used.

Notable context includes the public availability of the exploit, increasing the likelihood of real-world attacks against unpatched Beetel 777VR1 devices on local networks. No evidence of widespread exploitation or AI/ML relevance is reported.