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CVE-2024-0295· NVD / CVE Program· CNA VulDB

Totolink LR1200GB cstecgi.cgi setWanCfg os command injection

A vulnerability, which was classified as critical, was found in Totolink LR1200GB 9.1.0u.6619_B20230130. This affects the function setWanCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument hostName leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-249861 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded

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Published
Jan 8, 2024
Updated
Jun 17, 2026
EPSS
3.8% · 90th percentile
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Report tools

JSON

Action score

40

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.8%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
9.8
CNA · VulDB
7.3
2.5 point gap

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

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

Affected systems

VendorProduct
totolinklr1200gb firmware
totolinklr1200gb

Affected versions

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

  • totolink lr1200gb firmware9.1.0u.6619_b20230130

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 LR1200GB

    • 9.1.0u.6619_B20230130affected

Same product

totolink: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-46977TOTOLINK LR1200GB V9.1.0u.6619_B20230130 was discovered to contain a stack overflow via the password parameter in the function loginAuth.
    42Plan
  • CVE-2024-1783Totolink LR1200GB Web Interface cstecgi.cgi loginAuth stack-based overflow
    40Plan
  • CVE-2024-0294Totolink LR1200GB cstecgi.cgi setUssd os command injection
    40Plan
  • CVE-2024-0293Totolink LR1200GB cstecgi.cgi setUploadSetting os command injection
    40Plan
  • CVE-2024-0292Totolink LR1200GB cstecgi.cgi setOpModeCfg os command injection
    40Plan
  • CVE-2024-0578Totolink LR1200GB cstecgi.cgi UploadCustomModule stack-based overflow
    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-2024-02921 days apartTotolink LR1200GB cstecgi.cgi setOpModeCfg os command injection
    40Plan
  • CVE-2024-02931 days apartTotolink LR1200GB cstecgi.cgi setUploadSetting os command injection
    40Plan
  • CVE-2024-02941 days apartTotolink LR1200GB cstecgi.cgi setUssd os command injection
    40Plan

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.
  • No account or password is required.
  • 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
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSS vector

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

nvd-primary

Root cause

User input is inserted as text into a shell command. The shell may interpret special characters in the input as part of the command.

The bug in code

The whole CWE-78 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
const host = req.body.host;exec("ping -c 1 " + host, onResult);

Fixed

ts
const host = req.body.host;if (!/^[a-z0-9.-]{1,253}$/i.test(host)) return res.sendStatus(400);execFile("ping", ["-c", "1", host], onResult);

Attack context

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

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