CVE-2023-47856

highpriority · track · 0EPSS 0.014 · 73 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.41% (73rd) EPSS

CVSS 7.2 · high

Is it mine?

4 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

A stack-based buffer overflow vulnerability exists in the boa set_RadvdPrefixParam functionality of Realtek rtl819x Jungle SDK v3.4.11. A specially crafted series of network requests can lead to remote code execution. An attacker can send a sequence of requests to trigger this vulnerability.

cvss

Technical severity, 0–10. One row per scoring source.

7.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–7.2

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · talos-cna@cisco.com USexploitability 1.2 · impact 5.9

v3.16.6mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-121US

affected products (4)

Products and version ranges known to be affected.

WBR-6013≤ RER4_A_v3411b_2T2R_LEV_09_170623enisa_euvdEU
rtl819x Jungle SDK≤ v3.4.11enisa_euvdEU
level1 wbr-6013 firmware= rer4_a_v3411b_2t2r_lev_09_170623nvdUScpe:2.3:o:level1:wbr-6013_firmware:*:*:*:*:*:*:*:*
realtek rtl819x jungle software development kit= 3.4.11nvdUScpe:2.3:a:realtek:rtl819x_jungle_software_development_kit:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2024-07-08modified 2026-06-17

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+16138 more

references (6)

External citations — patches, advisories, analysis.

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