Skip to content
Noroxi
NVD / CVE Program· CNA NETGEAR

CVE-2026-11736: Stack-based buffer overflow vulnerability in some NETGEAR Nighthawk routers

Noroxi assessment

Priority: Monitor (action score 7/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.76% (FIRST EPSS); higher than 55.8% of all records.
  • Someone on the same network segment can trigger it. Administrator privileges are required. No user action is required. Special conditions such as timing or configuration are required.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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

LowCVSS 1.9 · v4.0—No exploit No fix recorded
Published
Aug 11, 2026
Updated
Sep 8, 2026
EPSS
0.7% · 55th percentile

Report tools

JSON

Action score

7

Monitor

Low priority for now.

CVSS
7 / 40 · 1.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.7%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · NETGEAR
1.9
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:L/U:Amber

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

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-11736

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for netgear records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
netgearrax20 firmware
netgearrax20
netgearrax35v2 firmware
netgearrax35v2
netgearrax41 firmware
netgearrax41
netgearrax41v2 firmware
netgearrax41v2
netgearrax42 firmware
netgearrax42
netgearrax42v2 firmware
netgearrax42v2

and 26 more

Affected versions

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

  • netgear rax20 firmwareall versions
  • netgear rax35v2 firmwarebefore 1.0.16.132
  • netgear rax41 firmwareall versions
  • netgear rax41v2 firmwarebefore 1.1.4.28
  • netgear rax42 firmwareall versions
  • netgear rax42v2 firmwarebefore 1.1.4.28
  • netgear rax43 firmwarebefore 1.0.16.132
  • netgear rax43v2 firmwarebefore 1.1.4.28
  • netgear rax45 firmwareall versions
  • netgear rax49s firmwarebefore 1.1.4.28
  • netgear rax50 firmwarebefore 1.0.16.132
  • netgear rax50s firmwareall versions
  • netgear rax50v2 firmwarebefore 1.1.4.28
  • netgear rax54sv2 firmwarebefore 1.1.4.28
  • netgear rax54v2 firmwarebefore 1.1.4.28
  • netgear raxe450 firmwareall versions
  • netgear raxe500 firmwarebefore 1.2.14.114
  • netgear xr1000 firmwarebefore 1.1.0.22
  • netgear xr1000v2 firmwarebefore 1.1.0.22

Versions reported by the vendor

Affected version ranges reported by the assigning authority (NETGEAR). Independent of NVD's CPE analysis and usually ahead of it.

  • NETGEAR RAX20

    • all versionsaffected

  • NETGEAR RAX35v2

    • before V1.0.16.132affected

  • NETGEAR RAX41

    • all versionsaffected

  • NETGEAR RAX41v2

    • before V1.1.4.28affected

  • NETGEAR RAX42

    • all versionsaffected

  • NETGEAR RAX42v2

    • before V1.1.4.28affected

  • NETGEAR RAX43

    • before V1.0.16.132affected

  • NETGEAR RAX43v2

    • before V1.1.4.28affected

  • NETGEAR RAX45

    • all versionsaffected

  • NETGEAR RAX49S

    • before V1.1.4.28affected

  • NETGEAR RAX50

    • before V1.0.16.132affected

  • NETGEAR RAX50S

    • all versionsaffected

Same product

netgear: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-11737Some NETGEAR Nighthawk devices allow administrators to tamper with the device
    17Monitor

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-2026-117370 days apartSome NETGEAR Nighthawk devices allow administrators to tamper with the device
    17Monitor

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

  • Someone on the same network segment can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
Integrity
Availability
Attack vector
Adjacent
Attack complexity
High
Privileges required
High
User interaction
None
Scope
X

Weakness class (CWE)

CWE-20 · Improper Input Validation

CVSS vector

CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:L/U:Amber

nvd-secondary

Attack context

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

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Show all references (18 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records