Trending
CVE-2026-31255

CVE detail

CVE-2026-31255

A command injection vulnerability exists in Tenda AC18 V15.03.05.05_multi. The vulnerability is located in the /goform/SetSambaCfg interface, where improper handling of the guestuser parameter allows attackers to execute arbitrary system commands.

CVSS 9.8 · CriticalBuzz score 16.41 public exploit repository references

Buzz score

Why this CVE is surfacing

Buzz score total 16.4

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 6.9 · diversity 5.0 · KEV 0.0 · OTX 0.0 · PoC 4.5

Mention score

6.9

1 evidence mentions in the snapshot

Diversity score

5.0

1 sources across 1 categories

KEV score

0.0

No KEV entry observed

OTX score

0.0

0 OTX pulses

PoC score

4.5

1 repos · best confidence 0.90

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 0; within the 30d window
Peak daily: 0; highest bucket

Evidence

Source links by recency

Newest mentions first

1 source links · newest first

https://github.com/izxnfirh8148/CVE_REQUESTS_references/blob/main/Tenda_AC18/Tenda_AC18_3th/README.mdgithub.com
No excerpt available.
Exploitgithub.comApr 27, 2026, 7:16 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

1 repository references · best confidence 0.90 · max 0 stars

izxnfirh8148/CVE_REQUESTS_referencesHigh confidence
githubNVD Exploit reference0 starsDiscovered Jul 11, 2026, 12:20 PM
NVD labels the source link as Exploit; this is not independent verification of the repository's code.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence

CVE-2025-11121
A security vulnerability has been detected in Tenda AC18 15.03.05.19. The impacted element is an unknown function of the file /goform/AdvSetLanip. The manipulation of the argument…
CVSS 2.1 · Low
Public PoC observed5 mentions
CVE-2025-5606
A vulnerability was found in Tenda AC18 15.03.05.05. It has been declared as critical. This vulnerability affects the function formSetIptv of the file /goform/SetIPTVCfg. The mani…
CVSS 5.3 · Medium
CVE-2025-0528
A vulnerability, which was classified as critical, has been found in Tenda AC8, AC10 and AC18 16.03.10.20. Affected by this issue is some unknown functionality of the file /goform…
CVSS 8.6 · High
Public PoC observed5 mentions
CVE-2024-57583
Tenda AC18 V15.03.05.19 was discovered to contain a command injection vulnerability via the usbName parameter in the formSetSambaConf function.
CVSS 9.8 · Critical
CVE-2024-30891
A command injection vulnerability exists in /goform/exeCommand in Tenda AC18 v15.03.05.05, which allows attackers to construct cmdinput parameters for arbitrary command execution.
CVSS 8.8 · High
CVE-2024-28545
Tenda AC18 V15.03.05.05 contains a command injection vulnerablility in the deviceName parameter of formsetUsbUnload function.
CVSS 9.8 · Critical

External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2026-31255.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

cpe:2.3:h:tenda:ac18Search this product on Shodan
cpe:2.3:o:tenda:ac18_firmwareSearch this product on Shodan

Exact CVE query

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vuln:CVE-2026-31255Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Modified

Published

Apr 27, 2026

Modified

Jun 17, 2026

Official record

Authoritative NVD record

CVSS vector

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

CWE IDs

Vendor classifications

How this vector reads

CVSS 3.1 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Network. The vulnerable system can be reached across network boundaries.
Attack Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Privileges Required (PR): None. The attacker needs no privileges on the vulnerable system.
User Interaction (UI): None. Exploitation does not require another user to act.
Scope (S): Unchanged. Impacts remain within the vulnerable security authority.
Confidentiality Impact (C): High. There is a total or serious impact to this security property.
Integrity Impact (I): High. There is a total or serious impact to this security property.
Availability Impact (A): High. There is a total or serious impact to this security property.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses