vciy

CVE-2024-12728

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.

A weak credentials vulnerability potentially allows privileged system access via SSH to Sophos Firewall older than version 20.0 MR3 (20.0.3).

CVE-2024-127284 of 4 sources documented this
27

rank 27 = 0 + 25 + 0 + 2 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.00948  ·  without this subject the record ranks 27

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.8, from the CNA  ·  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 27

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 25

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 27

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$47,300over 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

$47,300 = $4.99M incident cost x 1 exposure x 0.00948 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

0.00948EPSSNOT IN KEVas of 2026-09-20
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2024-12-20, 571 days at 0.01, as of 2026-07-14. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

Running Sophos Firewall? 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.

Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-1391 Use of Weak Credentialsreceipt
Published consequencesCWE-1391: Access Control: Bypass Protection Mechanism[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed in20.0 MR3 (20.0.3)receipt
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 CNA9.8 CRITICALreceipt
Exploit probability0.00948 · top 40% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bySophosreceipt
Recorded changes28 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productSophos Firewallreceipt
Published rangessophos firewall firmware < 20.0.3receipt
Fixed in20.0 MR3 (20.0.3)receipt

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.

Attack path

Unauthenticated network requestno credentials, no interactionSophos FirewallCWE-1391 weaknessFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-1391data compromise

What it is stated by the CNA

A weak credentials vulnerability potentially allows privileged system access via SSH to Sophos Firewall older than version 20.0 MR3 (20.0.3). receipt

NVD's analysis a second authority

weakness
CWE-1391
affected versions
sophos firewall firmware < 20.0.3
also scored by
[email protected] 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

check it yourself sophos.com receipt

Movement the material steps

20 Dec 20240.00043
17 Mar 20250.0004 · scoring model v2025.03.14
15 Jun 20260.00914 · scoring model v2026.06.15
14 Jul 20260.00948
Show all 28 observations
20 Dec 20240.00043
17 Mar 20250.0004
29 Mar 20250.00057
30 Mar 20250.0004
15 Apr 20250.0005
20 Apr 20250.00062
17 May 20250.00052
18 May 20250.00058
29 May 20250.00073
15 Jul 20250.00083
25 Jul 20250.00093
24 Aug 20250.00108
4 Sep 20250.00114
14 Sep 20250.00117
5 Oct 20250.00126
15 Oct 20250.00149
13 Nov 20250.00167
18 Nov 20250.00198
21 Nov 20250.00167
27 Jan 20260.00315
29 Jan 20260.00307
22 Feb 20260.00288
23 Feb 20260.00221
10 May 20260.003
6 Jun 20260.00392
15 Jun 20260.00914
21 Jun 20260.00929
14 Jul 20260.00948

28 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 0.00948Published2024-12-19Index as of2026-07-14

The record had been public for 1 year, 6 months when this index was last written.

Published 2024-12-19 receipt · Index as of 2026-07-14 derived

Siblings and hubs

Records related to this one

Fixed with these, by one advisory

sophos-sa-20241219-sfos-rce

Of the 3 records in this advisory, this is the only one holding a stated fix version: 20.0 MR3 (20.0.3).

Listed because one advisory covers them, not because they are the same defect. Each record's own state is on its own page.

Grouping: held values

Browse the index from here

These are index-wide views, not findings about CVE-2024-12728.

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.