CVE-2023-49007Network attack vector

Unauthenticated memory corruption via httpd stack overflow

Published Dec 8, 2023 · Updated Aug 2, 2024

Stack-based buffer overflow in NETGEAR Orbi RBR750 firmware before 7.2.6.21 allows remote attackers to corrupt httpd process memory. The flaw resides in /usr/sbin/httpd, where a crafted network request overruns a stack buffer; public records do not identify the request field or unsafe copy operation. The network-reachable path requires no authentication or user interaction, and successful exploitation crashes httpd or permits arbitrary code execution.

CVSS severity9.8
Critical
EPSS probability8.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stack-based buffer overflow in NETGEAR Orbi RBR750 firmware before 7.2.6.21 allows remote attackers to corrupt httpd process memory. The flaw resides in /usr/sbin/httpd, where a crafted network request overruns a stack buffer; public records do not identify the request field or unsafe copy operation. The network-reachable path requires no authentication or user interaction, and successful exploitation crashes httpd or permits arbitrary code execution.

The record

CVE
CVE-2023-49007
Published
Dec 8, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo