Which versions of Be12 Pro are affected by CVE-2026-15691?

Tenda BE12 Pro routers running firmware 16.03.66.23 are vulnerable to remote code execution through the management interface, allowing authenticated users with low privileges to gain full…

Is there a public PoC exploit available for CVE-2026-15691?

Yes, a public proof-of-concept exploit is available for CVE-2026-15691. Prioritise patching immediately. EPSS: 0.8%.

How to fix or mitigate CVE-2026-15691?

Within 24 hours: Identify all Tenda BE12 Pro devices in your environment and document their firmware versions; immediately restrict web management interface access (ports 80/443) to authorized administrators via firewall rules and disable remote management if operationally feasible. Within 7 days: Place affected routers on isolated management networks requiring jump-host access; contact Tenda Support to request explicit patch ETA and severity classification; document a device replacement or firmware upgrade timeline if no patch is available. Within 30 days: Deploy vendor patch to all affected devices immediately upon release; if no patch is published by day 30, execute planned hardware replacement to eliminate the vulnerability.

Be12 Pro CVE-2026-15691

Q: What is the CVSS score of CVE-2026-15691?

CVE-2026-15691 has a CVSS 4.0 base score of 7.4 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.8%.

EUVD-2026-43661 HIGH

Stack-based Buffer Overflow (CWE-121)

2026-07-14 VulDB

GHSA-53h5-qcmx-8q3x

Tenda Buffer Overflow Stack Overflow Be12 Pro

7.4

CVSS 4.0 · Vendor: VulDB

Severity by source

Vendor (VulDB) PRIMARY

7.4 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

vuln.today AI

8.8 HIGH

Network-reachable web endpoint (AV:N/AC:L) but requires low-privilege authentication to the UI (PR:L); memory corruption yields potential code execution with high C/I/A and no scope change.

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

4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Analysis Updated

Jul 14, 2026 - 13:32 vuln.today

v2 (cvss_changed)

Re-analysis Queued

Jul 14, 2026 - 13:22 vuln.today

cvss_changed

CVSS changed

Jul 14, 2026 - 13:22 NVD

8.7 (HIGH) 7.4 (HIGH)

Analysis Generated

Jul 14, 2026 - 13:00 vuln.today

CVE Published

Jul 14, 2026 - 12:15 cve.org

HIGH 8.7

DescriptionCVE.org

A security flaw has been discovered in Tenda BE12 Pro 16.03.66.23. This affects the function fromSafeClientFilter of the file /goform/SafeClientFilter. Performing a manipulation of the argument page results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.

AnalysisAI

Stack-based buffer overflow in the Tenda BE12 Pro (firmware 16.03.66.23) web management interface lets an attacker corrupt memory by supplying an oversized 'page' argument to the fromSafeClientFilter handler at /goform/SafeClientFilter, potentially crashing the device or executing arbitrary code with router privileges. Per the CVSS 4.0 vector the flaw is network-reachable but requires low-level privileges (PR:L). Publicly available exploit code exists (disclosed via VulDB), but there is no public exploit identified as being used in active attacks and it is not listed in CISA KEV.