Skip to content
Noroxi
CVE-2024-4064· NVD / CVE Program· CNA VulDB

Tenda AC8 execCommand R7WebsSecurityHandler stack-based overflow

A vulnerability was found in Tenda AC8 16.03.34.09. It has been declared as critical. This vulnerability affects the function R7WebsSecurityHandler of the file /goform/execCommand. The manipulation of the argument password leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-261790 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

HighCVSS 8.8 · v3.1—No exploit No fix recorded
Published
Apr 23, 2024
Updated
Jun 17, 2026
EPSS
1.8% · 77th percentile
Follow this CVE

Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.

Report tools

JSON

Action score

36

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 1.8%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
8.8
CNA · VulDB
8.8
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
tendaac8 firmware
tendaac8

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • tenda ac8 firmware16.03.34.09

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulDB). Independent of NVD's CPE analysis and usually ahead of it.

  • Tenda AC8

    • 16.03.34.09affected

Same product

tenda: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-4744Tenda AC8 formSetDeviceName stack-based overflow
    40Plan
  • CVE-2023-33669Tenda AC8V4.0-V16.03.34.06 was discovered to contain a stack overflow via the timeZone parameter in the sub_44db3c function.
    40Plan
  • CVE-2025-29100Tenda AC8 V16.03.34.06 is vulnerable to Buffer Overflow in the fromSetRouteStatic function via the parameter list.
    39Monitor
  • CVE-2025-25668Tenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the shareSpeed parameter in the sub_47D878 function.
    39Monitor
  • CVE-2025-25667Tenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the urls parameter in the function get_parentControl_list_Info.
    39Monitor
  • CVE-2025-25664Tenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the shareSpeed parameter in the sub_49E098 function.
    39Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2023-4744233 days apartTenda AC8 formSetDeviceName stack-based overflow
    40Plan
  • CVE-2025-29100335 days apartTenda AC8 V16.03.34.06 is vulnerable to Buffer Overflow in the fromSetRouteStatic function via the parameter list.
    39Monitor
  • CVE-2025-51087457 days apartTenda AC8V4 V16.03.34.06` was discovered to contain stack overflow at /goform/saveParentControlInfo.
    37Monitor
  • CVE-2024-40660 days apartTenda AC8 AdvSetMacMtuWan fromAdvSetMacMtuWan stack-based overflow
    36Monitor
  • CVE-2024-40650 days apartTenda AC8 SetRebootTimer formSetRebootTimer stack-based overflow
    35Monitor
  • CVE-2024-10130178 days apartTenda AC8 SetSysAutoRebbotCfg formSetRebootTimer stack-based overflow
    34Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-121 · Stack-based Buffer Overflow

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records