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NVD / CVE Program· CNA zdi

CVE-2022-27646: This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.9

Noroxi assessment

Priority: Monitor (action score 35/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.4% (FIRST EPSS); higher than 73% of all records.
  • Someone on the same network segment can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • 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

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the circled daemon. A crafted circleinfo.txt file can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15879.

HighCVSS 8.8 · v3.1—Proof of concept No fix recorded
Published
Mar 29, 2023
Updated
Jun 17, 2026
EPSS
1.4% · 73th percentile

Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.4%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
8.8
CNA · zdi
8.0
0.8 point gap

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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
  • Proof of concept exists, no weaponized module
  • No fixed version yet

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

Follow CVE-2022-27646

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

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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.

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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
netgearr6400 firmware
netgearr6400
netgearr6700 firmware
netgearr6700
netgearr6900p firmware
netgearr6900p
netgearr7000 firmware
netgearr7000
netgearr7000p firmware
netgearr7000p
netgearr7850 firmware
netgearr7850

and 36 more

Affected versions

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

  • netgear cbr40 firmwarebefore 2.5.0.28
  • netgear lbr1020 firmwarebefore 2.7.4.2
  • netgear lbr20 firmwarebefore 2.7.4.2
  • netgear r6400 firmwarebefore 1.0.4.126
  • netgear r6700 firmwarebefore 1.0.4.126
  • netgear r6900p firmwarebefore 1.3.3.148
  • netgear r7000 firmwarebefore 1.0.11.134
  • netgear r7000p firmwarebefore 1.3.3.148
  • netgear r7850 firmwarebefore 1.0.5.84
  • netgear r7960p firmwarebefore 1.4.3.88
  • netgear r8000 firmwarebefore 1.0.4.84
  • netgear r8000p firmwarebefore 1.4.3.88
  • netgear rax200 firmwarebefore 1.0.6.138
  • netgear rax75 firmwarebefore 1.0.6.138
  • netgear rax80 firmwarebefore 1.0.6.138
  • netgear rbr10 firmwarebefore 2.7.4.24
  • netgear rbr20 firmwarebefore 2.7.4.24
  • netgear rbr40 firmwarebefore 2.7.4.24
  • netgear rbr50 firmwarebefore 2.7.4.24
  • netgear rbs10 firmwarebefore 2.7.4.24

Versions reported by the vendor

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

  • NETGEAR R6700v3

    • 1.0.4.120_10.0.91affected

Same product

netgear: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-27643This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.9
    43Plan
  • CVE-2020-11789Certain NETGEAR devices are affected by command injection by an unauthenticated attacker.
    40Plan
  • CVE-2022-27644This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information on affected installations of NETG
    35Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2021-45605Dec 25, 2021 · Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user.
    35Monitor
  • ← EarlierCVE-2021-45606Dec 25, 2021 · Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user.
    35Monitor
  • ← EarlierCVE-2021-45655Dec 25, 2021 · NETGEAR R6400 devices before 1.0.1.70 are affected by server-side injection.
    27Monitor

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

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:82023-06-01

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.

  1. Published
  2. First PoC+63 d
  3. TodayNov 2, 2026+1314 d

No history yet (it accumulates with the daily EPSS job).

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.

No nightly-computed relations.

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.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-121 · Stack-based Buffer Overflow

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

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

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

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

References

Show all references (1 more)

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

All records