NETGEAR XR1000v2 buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.1$5k-$25k1.20+

Summaryinfo

A vulnerability was found in NETGEAR R7000, RAX20, RAX35v2, RAX41, RAX41v2, RAX42, RAX42v2, RAX43, RAX43v2, RAX45, RAX49S, RAX50, RAX50S, RAX50v2, RAX54Sv2, RAX54v2, RAXE450, RAXE500, XR1000 and XR1000v2 and classified as very critical. Affected by this vulnerability is an unknown functionality. Executing a manipulation can lead to buffer overflow. This vulnerability appears as CVE-2026-11735. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in NETGEAR R7000, RAX20, RAX35v2, RAX41, RAX41v2, RAX42, RAX42v2, RAX43, RAX43v2, RAX45, RAX49S, RAX50, RAX50S, RAX50v2, RAX54Sv2, RAX54v2, RAXE450, RAXE500, XR1000 and XR1000v2. It has been declared as very critical. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A stack-based buffer overflow vulnerability affects the listed NETGEAR models allowing an authenticated admin user to make unauthorized modification to the router's software and functionality.

The advisory is shared for download at netgear.com. This vulnerability was named CVE-2026-11735 since 06/09/2026. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are necessary for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 08/11/2026).

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

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.1
VulDB Meta Temp Score: 9.1

VulDB Base Score: 9.1
VulDB Temp Score: 9.1
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: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
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

06/09/2026 CVE reserved
08/11/2026 +63 days Advisory disclosed
08/11/2026 +0 days VulDB entry created
08/11/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: netgear.com

Advisory: netgear.com
Status: Confirmed

CVE: CVE-2026-11735 (🔒)
GCVE (CVE): GCVE-0-2026-11735
GCVE (VulDB): GCVE-100-388168

Entryinfo

Created: 08/11/2026 17:35
Changes: 08/11/2026 17:35 (51)
Complete: 🔍
Cache ID: 216::103

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