TOTOLINK EX1200L 9.3.5u.6146_B20201023 Password Configuration /cgi-bin/cstecgi.cgi setPasswordCfg null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.9$0-$5k0.21+

Summaryinfo

A vulnerability classified as critical was found in TOTOLINK EX1200L 9.3.5u.6146_B20201023. This affects the function setPasswordCfg of the file /cgi-bin/cstecgi.cgi of the component Password Configuration Handler. The manipulation results in null pointer dereference. This vulnerability is reported as CVE-2026-75012. The attack can be launched remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability was found in TOTOLINK EX1200L 9.3.5u.6146_B20201023. It has been classified as critical. Affected is the function setPasswordCfg of the file /cgi-bin/cstecgi.cgi of the component Password Configuration Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability.

The advisory is shared for download at gist.github.com. This vulnerability is traded as CVE-2026-75012. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details and a public exploit are known.

The exploit is shared for download at gist.github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 5.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/17/2026 Advisory disclosed
08/17/2026 +0 days VulDB entry created
08/17/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: totolink.net

Advisory: gist.github.com
Status: Not defined

CVE: CVE-2026-75012 (🔒)
GCVE (CVE): GCVE-0-2026-75012
GCVE (VulDB): GCVE-100-391272
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/17/2026 15:16
Changes: 08/17/2026 15:16 (56)
Complete: 🔍
Submitter: yuxin_wang
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #876022: Totolink EX1200L Firmware V9.3.5u.6146_B20201023 NULL Pointer Dereference (by yuxin_wang)

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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