TOTOLINK WA1200 5.9c.2914 HTTP Request cstecgi.cgi null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in TOTOLINK WA1200 5.9c.2914. This affects an unknown function of the file cstecgi.cgi of the component HTTP Request Handler. The manipulation results in null pointer dereference. This vulnerability was named CVE-2026-0731. The attack may be performed from remote. In addition, an exploit is available. Applying restrictive firewalling is recommended.

Detailsinfo

A vulnerability classified as critical has been found in TOTOLINK WA1200 5.9c.2914. Affected is an unknown code block of the file cstecgi.cgi of the component HTTP Request 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 github.com. This vulnerability is traded as CVE-2026-0731. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

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

It is possible to mitigate the weakness by firewalling .

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: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CNA Base Score: 5.3
CNA Vector: 🔒

CVSSv2info

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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: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔒

Timelineinfo

01/08/2026 Advisory disclosed
01/08/2026 +0 days VulDB entry created
01/29/2026 +21 days VulDB entry last update

Sourcesinfo

Vendor: totolink.net

Advisory: github.com
Status: Not defined

CVE: CVE-2026-0731 (🔒)
GCVE (CVE): GCVE-0-2026-0731
GCVE (VulDB): GCVE-100-340128
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 01/08/2026 16:20
Updated: 01/29/2026 21:08
Changes: 01/08/2026 16:20 (56), 01/09/2026 19:55 (31), 01/29/2026 21:08 (11)
Complete: 🔍
Submitter: JackWesley
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #733249: TOTOLINK WA1200 V5.9c.2914 NULL Pointer Dereference (by JackWesley)

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

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