HOMEVULNERABILITIESCVE-2023-34435
HIGH

CVE-2023-34435

CWE-347Published: July 8, 2024· Updated: Jun 17, 2026

7.2
CVSS v3.1

Official Description

A firmware update vulnerability exists in the boa formUpload functionality of Realtek rtl819x Jungle SDK v3.4.11. A specially crafted network packets can lead to arbitrary firmware update. An attacker can provide a malicious file to trigger this vulnerability.

NVD Source

Technical Analysis

CVE-2023-34435 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high 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 7.2.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

level12 product(s)
wbr-6013 firmwarewbr-6013
realtek1 product(s)
rtl819x jungle software development kit
Source: NVD CPE · 3 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://talosintelligence.com/vulnerability_reports/TALOS-2023-1874
ADVISORYhttps://talosintelligence.com/vulnerability_reports/TALOS-2023-1874

All References (3)

→
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1874Third Party Advisory
→
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1874Third Party Advisory
→
https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1874

Quick Facts

CVE IDCVE-2023-34435
CVSS Score7.2 / 10
SeverityHIGH
WeaknessCWE-347
CISA KEVNo
Affected2 vendor(s)
PublishedJul 8, 2024

Related CVEs (CWE-347)

CVE-2026-56451
10.0
CVE-2024-32962
10.0
CVE-2026-48558
KEV10.0
CVE-2026-44748
9.9
CVE-2014-3585
9.8
CVE-2017-18146
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-34435 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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