CVE-2026-5021HIGH 8.8EPSS p45.5%

CVE-2026-5021CVE-2026-5021

Description

A flaw has been found in Tenda F453 1.0.0.3. This affects the function fromPPTPUserSetting of the file /goform/PPTPUserSetting of the component httpd. This manipulation of the argument delno causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been published and may be used.

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
EPSS0.63% probability of exploitation · percentile 45.5% · 2026-06-18T12:00:27Z
Published2026-03-29
Last modified2026-03-30

Underlying weaknesses· 3

CWE-119CWE-121CWE-787

References

  1. https://github.com/Litengzheng/vul_db/blob/main/F453/vul_92/README.md
  2. https://vuldb.com/submit/778415
  3. https://vuldb.com/vuln/353906
  4. https://vuldb.com/vuln/353906/cti
  5. https://www.tenda.com.cn/

3

TypeTargetConfidenceTier
WeaknessImproper Restriction of Operations within the Bounds of a Memory Buffercwe-1190%live
WeaknessStack-based Buffer Overflowcwe-1210%live
WeaknessOut-of-bounds Writecwe-7870%live

Related by meaning· 6

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

CVE
CVE-2026-7080
CVE
CVE-2025-7805
CVE
CVE-2026-9428
CVE
CVE-2026-6121
CVE
CVE-2025-7531
CVE
CVE-2026-6122
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.