vciy

CVE-2017-5753 · Spectre

INDEX BUILT · 2026-09-20

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Systems with microprocessors utilizing speculative execution and branch prediction may allow unauthorized disclosure of information to an attacker…

CVE-2017-57534 of 4 sources documented this
53

rank 53 = 29 + 14 + 0 + 10 + 0

rank@v1 · this cycle

Someone is already using it

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

EPSS 0.93838  ·  without this subject the record ranks 24

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 5.6, from NVD  ·  without this subject the record ranks 39

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 53

How much of the world it touches

NVD CPE configurations

20 products in the CPE ranges  ·  without this subject the record ranks 43

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 53

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$2.87Mover the next 30 days, if this record is yours
Movement+$1.52Mon 2022-02-04, the last material move, 4 years, 6 months before this reading
Basisassumeda published average, not your estate

$2.87M = $4.99M incident cost x 0.6121449559255632 exposure x 0.93838 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

0.93838EPSSNOT IN KEVas of 2026-09-20
Severity5.6 MEDIUMreceipt
Harmpartial impactreceipt
Exploitationpublic proof-of-conceptreceipt
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2023-03-07, 1270 days at 0.94, as of 2026-08-28. 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 Intel Corporation Most Modern Operating…? 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.

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachneeds local access · low privileges required · no user interaction · high attack complexityreceipt
ImpactComplete confidentiality loss, with impact beyond the vulnerable componentreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-203 Observable Discrepancyreceipt
Published consequencesCWE-203: Confidentiality, Access Control: Read Application Data, Bypass Protection Mechanism; Confidentiality: Read Application Data[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: Proof-of-concept published · 7 public repositories, 2018-01-04.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 7 public repositories2018-01-04receipt
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD5.6 MEDIUMreceipt
Exploit probability0.93838 · top 0.16% of all CVEsreceipt
Blast breadth20 products across 1 vendorderived
Assigned byintelreceipt
Recorded changes46 · last 17 Sep 2026derived

Affected & Fixed Versions as published

Affected productIntel Corporation Most Modern Operating Systemsreceipt
Published rangesintel atom c c2308; intel atom c c2316; intel atom c c2338; intel atom c c2350receipt
Show all 20 published ranges
intel atom c c2308
intel atom c c2316
intel atom c c2338
intel atom c c2350
intel atom c c2358
intel atom c c2508
intel atom c c2516
intel atom c c2518
intel atom c c2530
intel atom c c2538
intel atom c c2550
intel atom c c2558
intel atom c c2718
intel atom c c2730
intel atom c c2738
intel atom c c2750
intel atom c c2758
intel atom c c3308
intel atom c c3338
intel atom c c3508

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

Spectre is the common name for CVE-2017-5753. Systems with microprocessors utilizing speculative execution and branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis. cve-aliases@2026-08-27

NVD's analysis a second authority

severity
5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
weakness
CWE-203
affected versions
intel atom c c2308; intel atom c c2316; intel atom c c2338; and 17 more, listed in full below
also scored by
5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

check it yourself nvidia.custhelp.com lists.debian.org debian.org usn.ubuntu.com security.gentoo.org usn.ubuntu.com +14 morereceipt

Dated events

2022-02-04EPSS moved 0.38 to 0.872022-06-12EPSS moved 0.83 to 0.772023-03-07EPSS moved 0.75 to 0.98

Movement the material steps

14 Apr 20210.37591
4 Feb 20220.87485 · crossed 0.50
12 Jun 20220.76928
7 Mar 20230.97576 · crossed 0.90 · scoring model v2023.03.01
17 Mar 20250.94272 · scoring model v2025.03.14
15 Jun 20260.93838 · scoring model v2026.06.15
28 Aug 20260.93838
Show all 43 observations
14 Apr 20210.37591
4 Feb 20220.87485
13 Mar 20220.82652
12 Jun 20220.76928
1 Oct 20220.7494
7 Mar 20230.97576
8 May 20230.97510
8 Jul 20230.97531
15 Jul 20230.97573
14 Nov 20230.97572
15 Dec 20230.97551
17 Dec 20240.97542
17 Mar 20250.94272
18 Mar 20250.94121
20 Mar 20250.94167
11 Apr 20250.9417
13 Apr 20250.94124
14 Apr 20250.94074
19 Apr 20250.94124
20 Apr 20250.94277
22 Apr 20250.94332
23 Apr 20250.94304
1 May 20250.94332
2 May 20250.9417
5 Jun 20250.94332
19 Jul 20250.94277
22 Jul 20250.94332
30 Jul 20250.94304
16 Aug 20250.94301
19 Aug 20250.94304
1 Oct 20250.94332
27 Oct 20250.94304
28 Oct 20250.94332
18 Nov 20250.92986
21 Nov 20250.94332
27 Dec 20250.94304
28 Dec 20250.94332
27 Apr 20260.94297
20 May 20260.94253
22 May 20260.9427
15 Jun 20260.93838
24 Jul 20260.92621
28 Aug 20260.93838

43 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 0.93838Published · Public PoC2018-01-04Index as of2026-08-28

The record had been public for 8 years, 7 months when this index was last written.

Published 2018-01-04 receipt · Public PoC 2018-01-04 receipt · Index as of 2026-08-28 derived

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