HOMEVULNERABILITIESCVE-2023-38921
HIGH

CVE-2023-38921

CWE-77Published: August 7, 2023· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

Netgear WG302v2 v5.2.9 and WAG302v2 v5.1.19 were discovered to contain multiple command injection vulnerabilities in the upgrade_handler function via the firmwareRestore and firmwareServerip parameters.

NVD Source

Technical Analysis

CVE-2023-38921 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

netgear4 product(s)
wg302v2 firmwarewg302v2wag302v2 firmwarewag302v2
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/FirmRec/IoT-Vulns/tree/main/netgear/upgrade_handler
ADVISORYhttps://www.netgear.com/about/security/
ADVISORYhttps://github.com/FirmRec/IoT-Vulns/tree/main/netgear/upgrade_handler
ADVISORYhttps://www.netgear.com/about/security/

All References (4)

→
https://github.com/FirmRec/IoT-Vulns/tree/main/netgear/upgrade_handlerThird Party Advisory
→
https://www.netgear.com/about/security/Vendor Advisory
→
https://github.com/FirmRec/IoT-Vulns/tree/main/netgear/upgrade_handlerThird Party Advisory
→
https://www.netgear.com/about/security/Vendor Advisory

Quick Facts

CVE IDCVE-2023-38921
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-77
CISA KEVNo
Affected1 vendor(s)
PublishedAug 7, 2023

Related CVEs (CWE-77)

CVE-2015-1815
10.0
CVE-2015-6912
10.0
CVE-2024-28354
10.0
CVE-2024-32766
10.0
CVE-2015-5082
10.0
CVE-2014-1905
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-38921 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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