DrayTek Vigor2926 HTTP CGI Request missing initialization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.8$0-$5k0.00

Summaryinfo

A vulnerability was found in DrayTek Vigor1000B, Vigor2962, Vigor3910, Vigor3912, Vigor2135, Vigor2763, Vigor2765, Vigor2766, Vigor2865, Vigor2865 LTE, Vigor2865L-5G, Vigor2866, Vigor2866 LTE, Vigor2927, Vigor 2927 LTE, Vigor2927L-5G, Vigor2915, Vigor2862, Vigor2862 LTE and Vigor2926. It has been declared as very critical. Impacted is an unknown function of the component HTTP CGI Request Handler. The manipulation results in missing initialization. This vulnerability is reported as CVE-2025-10547. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as very critical, was found in DrayTek Vigor1000B, Vigor2962, Vigor3910, Vigor3912, Vigor2135, Vigor2763, Vigor2765, Vigor2766, Vigor2865, Vigor2865 LTE, Vigor2865L-5G, Vigor2866, Vigor2866 LTE, Vigor2927, Vigor 2927 LTE, Vigor2927L-5G, Vigor2915, Vigor2862, Vigor2862 LTE and Vigor2926. Affected is some unknown processing of the component HTTP CGI Request Handler. The manipulation with an unknown input leads to a missing initialization vulnerability. CWE is classifying the issue as CWE-456. The product does not initialize critical variables, which causes the execution environment to use unexpected values. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An uninitialized variable in the HTTP CGI request arguments processing component of Vigor Routers running DrayOS may allow an attacker the ability to perform RCE on the appliance through memory corruption.

The advisory is shared for download at draytek.com. This vulnerability is traded as CVE-2025-10547 since 09/16/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/07/2025).

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

The vulnerability is also documented in the databases at EUVD (EUVD-2025-32290) and CERT Bund (WID-SEC-2025-2206). Once again VulDB remains the best source for vulnerability data.

Affected

  • DrayTek Vigor

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
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: Missing initialization
CWE: CWE-456 / CWE-453
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

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

09/16/2025 CVE reserved
10/03/2025 +17 days Advisory disclosed
10/03/2025 +0 days VulDB entry created
10/07/2025 +4 days VulDB entry last update

Sourcesinfo

Advisory: draytek.com
Status: Not defined

CVE: CVE-2025-10547 (🔒)
GCVE (CVE): GCVE-0-2025-10547
GCVE (VulDB): GCVE-100-326892
EUVD: 🔒
CERT Bund: WID-SEC-2025-2206 - DrayTek Vigor: Schwachstelle ermöglicht Codeausführung

Entryinfo

Created: 10/03/2025 15:23
Updated: 10/07/2025 16:33
Changes: 10/03/2025 15:23 (52), 10/06/2025 22:17 (7), 10/07/2025 16:33 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

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