vciy

CVE-2025-20737

INDEX BUILT · 2026-09-20

No source can show you its own past. This one can.

Print this page to keep the view as it stands on this date. Everything hidden behind a disclosure opens, and every receipt prints with its value.

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check

CVE-2025-207374 of 4 sources documented this
5

rank 5 = 0 + 0 + 0 + 5 + 0

rank@v1 · backlog

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.00146  ·  without this subject the record ranks 5

What it costs you if it fires

NVD CVSS base score, then the CNA's own

no CVSS held by anyone  ·  without this subject the record ranks 5

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 5

How much of the world it touches

NVD CPE configurations

3 products in the CPE ranges  ·  without this subject the record ranks 0

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 5

Hindsight · the state

0.00146EPSSNOT IN KEVas of 2026-09-20
Severitynot scored
Harmnot stated
Exploitationnone in held sources
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2025-11-04, 269 days at 0.00, as of 2026-07-31. arc-rules@v1

Foresight · where to check next

Ivanti ConnectSonicWall SMA100DD-WRTCisco IOSFortinet FortiNDR20737

This record is one instance of CWE-121, stack-based buffer overflow. The index holds 3820 prior instances of this class, 19 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signal

Running MediaTek, Inc. MT6890, MT7615, MT7622…? Check your version

A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.

Watch this record

Matches your own product list against every record this index holds, and tells you when one of them moves.

What counts as a move

Set up a watchlist (needs a Practitioner account)

Record your call

Keep your verdict, your reason and the evidence together. The record takes its date when you save it.

AcceptDeferPatch by…Not affectedMitigated

Choose your verdict, then sign in or use an email link. Your first 100 records are free. Evidence is frozen when the record is created.

Private to your organization unless you share it. Put the proof link in your ticket so a reviewer can inspect the basis for your call. See how decision records work.

Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

ReachNo CVSS vector in held sources, so no reach or impact can be stated.
Weakness classCWE-121 Stack-based Buffer Overflowreceipt
Published consequencesCWE-121: Availability: Modify Memory, DoS: Crash, Exit, or Restart, DoS: Resource Consumption (CPU), DoS: Resource Consumption (Memory)…[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed inNo fix version in held sources, as the index stood on 31 Jul 2026.
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

Exploit probability0.00146 · top 96% of all CVEsreceipt
Blast breadth2 products across 2 vendorsderived
Assigned byMediaTekreceipt
Recorded changes23 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productMediaTek, Inc. MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986receipt
Published rangesmediatek software development kit <= 7.6.7.2; openwrt 19.07.0; openwrt 21.02.0receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

Did this affect your environment?Answering needs an account.

What it is stated by the CNA

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00435343; Issue ID: MSV-4040. receipt

NVD's analysis a second authority

weakness
CWE-121; CWE-787
affected versions
mediatek software development kit <= 7.6.7.2; openwrt 19.07.0; openwrt 21.02.0
also scored by
7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

check it yourself corp.mediatek.com receipt

Movement the material steps

4 Nov 20250.00019
15 Jun 20260.00126 · scoring model v2026.06.15
31 Jul 20260.00146
Show all 23 observations
4 Nov 20250.00019
5 Nov 20250.00014
8 Nov 20250.00011
10 Nov 20250.00012
1 Dec 20250.00015
4 Dec 20250.00012
6 Dec 20250.00014
1 Jan 20260.00017
4 Jan 20260.00014
11 Jan 20260.00016
1 Feb 20260.0002
4 Feb 20260.00016
1 Mar 20260.0002
4 Mar 20260.00016
6 Mar 20260.0002
2 Apr 20260.00015
3 Apr 20260.00014
14 Apr 20260.00015
31 May 20260.00017
15 Jun 20260.00126
23 Jun 20260.00129
2 Jul 20260.00142
31 Jul 20260.00146

23 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.00146Published2025-11-04Index as of2026-07-31

The record had been public for 8 months when this index was last written.

Published 2025-11-04 receipt · Index as of 2026-07-31 derived

The pattern, elsewhere

This record is one instance of CWE-121, stack-based buffer overflow. The index holds 3820 prior instances of this class, 19 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2025-0282 · Ivanti Connect Secureonly 2 attributes comparableKEV listed · 2025receipt
CVE-2025-22457 · Ivanti Connect Secureonly 2 attributes comparableKEV listed · 2025receipt
CVE-2021-20038 · SonicWall SMA100only 2 attributes comparableKEV listed · 2021receipt
CVE-2021-27137 · DD-WRTonly 2 attributes comparableKEV listed · 2026receipt
CVE-2025-20352 · Cisco IOSonly 2 attributes comparableKEV listed · 2025receipt
CVE-2025-32756 · Fortinet FortiNDRonly 2 attributes comparableKEV listed · 2025receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

3820 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

Siblings and hubs

Records related to this one

Its defect family

mediatek, inc. mt6890 and 7 more names

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

Nothing we hold separates this record from the others in its defect family. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

Browse the index from here

These are index-wide views, not findings about CVE-2025-20737.

What usually comes next

Everything above needs no account. What is below is work: assembling it, scoping it to your estate, watching it, and handing it to someone else.

Everything on this page is free. Public data. Withholding it protects nothing.