CVE-2024-7464· NVD / CVE Program· CNA VulDB

TOTOLINK CP900 Telnet Service setTelnetCfg command injection

A vulnerability, which was classified as critical, has been found in TOTOLINK CP900 6.3c.566. This issue affects the function setTelnetCfg of the component Telnet Service. The manipulation of the argument telnet_enabled leads to command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-273557 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

MediumCVSS 5.3 · v4.0—No exploit No fix recorded

BDU:2024-06020

Published: Aug 4, 2024
Updated: Jun 17, 2026
EPSS: 19.9% · 97th percentile
CWE: CWE-77

Follow this CVE

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 21 / 40 · 5.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 6 / 30 · 19.9%

CISA SSVC decision

Exploitation: proof of concept
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · VulDB: 5.3; NVD has not scored this yet; the score shown is the CNA’s.

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

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

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; 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

Affected systems

Vendor	Product	CPE
totolink	cp900 firmware	cpe:2.3:o:totolink:cp900_firmware
totolink	cp900	cpe:2.3:h:totolink:cp900

Affected versions

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

totolink cp900 firmware6.3c.566

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.

TOTOLINK CP900
- 6.3c.566affected

Same product

totolink: all records

Other highest-scoring records for the same primary product.

CVE-2022-28495TOTOLink outdoor CPE CP900 V6.3c.566_B20171026 is discovered to contain a command injection vulnerability in the setWebWlanIdx function via
40Plan
CVE-2022-28491TOTOLink outdoor CPE CP900 V6.3c.566_B20171026 contains a command injection vulnerability in the NTPSyncWithHost function via the host_name
40Plan
CVE-2022-28494TOTOLink outdoor CPE CP900 V6.3c.566_B20171026 is discovered to contain a command injection vulnerability in the setUpgradeFW function via t
40Plan
CVE-2022-28496TOTOLink outdoor CPE CP900 V6.3c.566_B20171026 discovered to contain a command injection vulnerability in the setPasswordCfg function via th
39Monitor
CVE-2022-28497TOTOLink outdoor CPE CP900 V6.3c.566_B20171026 is discovered to contain a command injection vulnerability in the mtd_write_bootloader functi
39Monitor
CVE-2022-28493A vulnerability in TOTOLINK CP900 V6.3c.566 allows attackers to start the Telnet service,
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.

yhryhryhr_tu (VulDB User)reporter

Variant candidates

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

CVE-2022-28496500 days apartTOTOLink outdoor CPE CP900 V6.3c.566_B20171026 discovered to contain a command injection vulnerability in the setPasswordCfg function via th
39Monitor
CVE-2022-28497500 days apartTOTOLink outdoor CPE CP900 V6.3c.566_B20171026 is discovered to contain a command injection vulnerability in the mtd_write_bootloader functi
39Monitor
CVE-2025-44836270 days apartTOTOLINK CPE CP900 V6.3c.1144_B20190715 was discovered to contain a command injection vulnerability in the setApRebootScheCfg function via t
25Monitor
CVE-2025-44837270 days apartTOTOLINK CPE CP900 V6.3c.1144_B20190715 was discovered to contain a command injection vulnerability in the CloudSrvUserdataVersionCheck func
25Monitor
CVE-2025-44838270 days apartTOTOLINK CPE CP900 V6.3c.1144_B20190715 was discovered to contain a command injection vulnerability in the setUploadUserData function via th
25Monitor
CVE-2025-44854270 days apartTOTOLINK CP900 V6.3c.1144_B20190715 was found to contain a command injection vulnerability in the setUpgradeUboot function via the FileName
25Monitor

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

TR-24-1148 · Aug 5, 2024(Totolink CP450 ve CP900 Güvenlik Zafiyeti)

All national notices →

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
Integrity
Availability

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: X

Weakness class (CWE)

CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')

CVSS vector

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

nvd-secondary

Attack context

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

Attack patterns (CAPEC)

ATT&CK techniques

—

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

Noroxi analysis

No Noroxi analysis for this record yet

We use this product, ask for help

Data sources and verification

CNA: VulDB

CVE.org (CNA)Aug 5, 2024, 3:41 PM UTC
CISA ADPAug 5, 2024, 3:41 PM UTC
NVDJun 17, 2026, 4:20 AM UTC
FIRST EPSSOct 5, 2026, 12:00 AM UTC

Each line is when that source was last processed for this record.

You’re seeing every CVE. Add your stack to narrow the list down to the ones that affect you.

Add your stack