CVE-2026-3715HIGH 8.8EPSS p46.5%

CVE-2026-3715CVE-2026-3715

Description

A vulnerability was found in Wavlink WL-WN579X3-C 231124. This affects the function sub_40139C of the file /cgi-bin/firewall.cgi. Performing a manipulation of the argument del_flag results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made public and could be used. Upgrading to version 20260226 is able to mitigate this issue. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.66% probability of exploitation · percentile 46.5% · 2026-06-19T12:03:05Z
Published2026-03-08
Last modified2026-03-10

Underlying weaknesses· 2

CWE-119CWE-121

References

  1. https://dl.wavlink.com/firmware/RD/WN579X3C_WAVLINK_V20260226_WO_cb3003b2.bin
  2. https://github.com/Litengzheng/vul_db/blob/main/WL-WN579X3-C/vul_17/README.md
  3. https://vuldb.com/?ctiid.349660
  4. https://vuldb.com/?id.349660
  5. https://vuldb.com/?submit.765325

2

TypeTargetConfidenceTier
WeaknessImproper Restriction of Operations within the Bounds of a Memory Buffercwe-1190%live
WeaknessStack-based Buffer Overflowcwe-1210%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-5004
CVE
CVE-2026-3703
CVE
CVE-2026-2527
CVE
CVE-2026-2528
CVE
CVE-2026-2529
CVE
CVE-2025-10324
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.