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CVE-2022-25635

INDEX BUILT · 2026-09-20

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Realtek Linux/Android Bluetooth Mesh SDK - Buffer Overflow

CVE-2022-256354 of 4 sources documented this
18

rank 18 = 0 + 16 + 0 + 2 + 0

rank@v1 · backlog

Someone is already using it

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

EPSS 0.00370  ·  without this subject the record ranks 18

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 6.5, from NVD  ·  without this subject the record ranks 2

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 18

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 16

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 18

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$11,300over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$11,300 = $4.99M incident cost x 0.6121449559255632 exposure x 0.0037 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.0037EPSSNOT IN KEVas of 2026-09-20
Severity6.5 MEDIUMreceipt
Harmpartial impactreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementfallenreceipt
PLATEAU10Minimal movement since 2022-08-30, 1459 days at 0.00, as of 2026-08-28. arc-rules@v1

Foresight · where to check next

Apple iOSCVE-2018-6789CVE-2022-37055CVE-2020-15069CVE-2016-10174CVE-2017-726925635

This record is one instance of CWE-120, buffer copy without checking size of input ('classic buffer overflow'). The index holds 4490 prior instances of this class, 24 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 signalspoke length is how much of the record matches, not how bad it is

Running Realtek Linux/Android Bluetooth Mesh SDK? Check your version

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Harm, if it fires from the vector and the weakness

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Reachreachable from an adjacent network · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')receipt
Published consequencesCWE-120: Integrity, Confidentiality, Availability: Modify Memory, Execute Unauthorized Code or Commands; Availability: Modify Memory, DoS: Crash, Exit, or Restart, DoS: Resource Consumption (CPU)[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 28 Aug 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

CVSS, the CNA6.5 MEDIUMreceipt
CVSS, NVD6.5 MEDIUMreceipt
Exploit probability0.0037 · top 69% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bytwcertreceipt
Recorded changes16 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productRealtek Linux/Android Bluetooth Mesh SDKreceipt
Published rangesrealtek bluetooth mesh software development kit <= 4.17-4.17-20220127receipt

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.

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Attack path

Adjacent networkno credentials, no interactionRealtek Linux/Android Bluetooth Mes…CWE-120 weaknessAvailability lossA:Hexploits CWE-120data compromise

What it is stated by the CNA

Realtek Linux/Android Bluetooth Mesh SDK has a buffer overflow vulnerability due to insufficient validation for broadcast network packet length. An unauthenticated attacker in the adjacent network can exploit this vulnerability to disrupt service. receipt

NVD's analysis a second authority

severity
6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
weakness
CWE-120
affected versions
realtek bluetooth mesh software development kit <= 4.17-4.17-20220127
also scored by
[email protected] 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

check it yourself twcert.org.tw receipt

Movement the material steps

30 Aug 20220.00885
7 Mar 20235.5e-4 · scoring model v2023.03.01
17 Mar 20250.00031 · scoring model v2025.03.14
15 Jun 20260.00343 · scoring model v2026.06.15
28 Aug 20260.0037
Show all 16 observations
30 Aug 20220.00885
7 Mar 20235.5e-4
8 Mar 20230.00055
10 Feb 20240.00057
22 Mar 20240.00058
17 Mar 20250.00031
29 Mar 20250.00075
30 Mar 20250.00031
25 May 20250.00034
26 Jun 20250.00038
31 Aug 20250.00132
18 Nov 20250.00091
21 Nov 20250.00132
15 Jun 20260.00343
5 Aug 20260.00357
28 Aug 20260.0037

16 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 0.0037Published2022-08-30Index as of2026-08-28

The record had been public for 3 years, 11 months when this index was last written.

Published 2022-08-30 receipt · Index as of 2026-08-28 derived

The pattern, elsewhere

This record is one instance of CWE-120, buffer copy without checking size of input ('classic buffer overflow'). The index holds 4490 prior instances of this class, 24 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2025-43520 · Apple iOS and iPadOSmatches 6 of 9KEV listed · 2025receipt
CVE-2018-6789matches 5 of 8KEV listed · 2018receipt
CVE-2022-37055matches 5 of 8KEV listed · 2022receipt
CVE-2020-15069matches 5 of 8KEV listed · 2020receipt
CVE-2016-10174matches 5 of 8KEV listed · 2017receipt
CVE-2017-7269matches 5 of 8KEV listed · 2017receipt

"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

4490 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

realtek linux/android bluetooth mesh sdk

Of the 4 records in this family that state one, this holds the lowest EPSS percentile: 0.30043.

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

Family membership: held values

This record is one of a group, and the group's page describes all of them. 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

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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.

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