vciy

CVE-2017-15275

INDEX BUILT · 2026-09-20

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Samba before 4.7.3 might allow remote attackers to obtain sensitive information by leveraging failure of the server to clear allocated heap memory.

CVE-2017-152753 of 4 sources documented this
34

rank 34 = 5 + 19 + 1 + 9 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.21408  ·  without this subject the record ranks 29

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.5, from NVD  ·  without this subject the record ranks 15

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2026-04-05  ·  without this subject the record ranks 33

How much of the world it touches

NVD CPE configurations

15 products 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 34

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$654,000over the next 30 days, if this record is yours
Movement-$7,580on 2025-11-21, the last material move, 6 months before this reading
Basisassumeda published average, not your estate

$654,000 = $4.99M incident cost x 0.6121449559255632 exposure x 0.21408 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

0.21408EPSSNOT IN KEVas of 2026-09-20
Severity7.5 HIGHreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementscoring model changedreceipt
RISING10Risen from 0.03597 to 0.21408 across 28 observations. arc-rules@v1

Foresight · where to check next

Citrix NetScalerCVE-2020-29557BIG-IPMicrosoft WindowsGoogle ChromeCloud Software15275

This record is one instance of CWE-119, improper restriction of operations within the bounds of a memory buffer. The index holds 14297 prior instances of this class, 57 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

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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-119 Improper Restriction of Operations within the Bounds of a Memory Bufferreceipt
Published consequencesCWE-119: Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands, Modify Memory; Availability, Confidentiality: Read Memory, DoS: Crash, Exit, or Restart, DoS: Resource…[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

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

First unaffected version, by branchsamba 4.5.15; samba 4.6.11; samba 4.7.3receipt
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, NVD7.5 HIGHreceipt
Exploit probability0.21408 · top 3% of all CVEsreceipt
Blast breadth6 products across 4 vendorsderived
Assigned bymitrereceipt
Recorded changes28 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesSamba; Canonical ubuntu linux; Debian linux; and 3 morereceipt
Published rangessamba >= 3.6.0 < 4.5.15; samba >= 4.6.0 < 4.6.11; samba >= 4.7.0 < 4.7.3; canonical ubuntu linux 14.04receipt
Show all 15 published ranges
samba >= 3.6.0 < 4.5.15
samba >= 4.6.0 < 4.6.11
samba >= 4.7.0 < 4.7.3
canonical ubuntu linux 14.04
canonical ubuntu linux 16.04
canonical ubuntu linux 17.04
canonical ubuntu linux 17.10
debian linux 8.0
debian linux 9.0
redhat enterprise linux desktop 6.0
redhat enterprise linux desktop 7.0
redhat enterprise linux server 6.0
redhat enterprise linux server 7.0
redhat enterprise linux workstation 6.0
redhat enterprise linux workstation 7.0

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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What it is stated by the CNA

Samba before 4.7.3 might allow remote attackers to obtain sensitive information by leveraging failure of the server to clear allocated heap memory. receipt

NVD's analysis a second authority

severity
7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
weakness
CWE-119
affected versions
samba >= 3.6.0 < 4.5.15; samba >= 4.6.0 < 4.6.11; samba >= 4.7.0 < 4.7.3; and 12 more, listed in full below

check it yourself access.redhat.com ubuntu.com debian.org lists.debian.org access.redhat.com samba.org +7 morereceipt

Dated events

2023-03-07EPSS moved 0.04 to 0.962026-06-15EPSS moved 0.43 to 0.21

Movement the material steps

14 Apr 20210.03597
7 Mar 20230.95624 · crossed 0.10 and 0.50 and 0.90 · scoring model v2023.03.01
17 Dec 20240.30459 · crossed 0.50 and 0.90
17 Mar 20250.52866 · crossed 0.50 · scoring model v2025.03.14
21 Mar 20250.44597 · crossed 0.50
29 Mar 20250.28626
30 Mar 20250.44597
18 Nov 20250.50064 · crossed 0.50
21 Nov 20250.49816 · crossed 0.50
15 Jun 20260.21408 · scoring model v2026.06.15
Show all 28 observations
14 Apr 20210.03597
4 Feb 20220.03779
7 Mar 20230.95624
20 Apr 20230.95145
30 May 20230.94093
23 Jun 20230.93481
23 Jan 20240.93269
2 Mar 20240.91593
17 Dec 20240.30459
17 Mar 20250.52866
20 Mar 20250.51131
21 Mar 20250.44597
29 Mar 20250.28626
30 Mar 20250.44597
13 Jun 20250.43467
30 Aug 20250.4327
31 Aug 20250.44715
19 Oct 20250.47981
18 Nov 20250.50064
21 Nov 20250.49816
30 Nov 20250.45283
4 Dec 20250.43433
1 Jan 20260.4521
10 Mar 20260.44014
5 Apr 20260.49745
9 Apr 20260.45047
11 Apr 20260.4327
15 Jun 20260.21408

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 0.21408Published2017-11-27Index as of2026-06-15

The record had been public for 8 years, 6 months when this index was last written.

Published 2017-11-27 receipt · Index as of 2026-06-15 derived

The pattern, elsewhere

This record is one instance of CWE-119, improper restriction of operations within the bounds of a memory buffer. The index holds 14297 prior instances of this class, 57 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2023-4966 · Citrix NetScaler ADCmatches 6 of 8KEV listed · 2023receipt
CVE-2020-29557matches 6 of 8KEV listed · 2021receipt
CVE-2021-22991 · BIG-IPmatches 6 of 8KEV listed · 2021receipt
CVE-2020-0796 · Microsoft Windows 10 Version 1903 for 32-bit…matches 5 of 8KEV listed · 2020receipt
CVE-2026-3910 · Google Chromematches 5 of 8KEV listed · 2026receipt
CVE-2023-6549 · Cloud Software Group NetScaler ADCmatches 5 of 8KEV listed · 2024receipt

"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

14297 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.

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