vciy

CVE-2015-1635

INDEX BUILT · 2026-09-20

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HTTP.sys in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8, Windows 8.1, and Windows Server 2012 Gold and R2 allows remote attackers…

CVE-2015-16353 of 4 sources documented this
75

rank 75 = 40 + 25 + 0 + 4 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.99999 · CISA KEV listed  ·  without this subject the record ranks 35

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 10.0, from NVD  ·  without this subject the record ranks 50

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 75

How much of the world it touches

NVD CPE configurations

2 products in the CPE ranges  ·  without this subject the record ranks 71

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 69

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$4.99Mover 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

$4.99M = $4.99M incident cost x 1 exposure x 0.99999 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

0.99999EPSSKEV · LISTED
Severity10 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationin the wild · KEVreceipt
Defenseno fix version held
Movementscoring model changedreceipt
PLATEAU10Minimal movement since 2022-02-04, 1673 days at 1.00, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

SonicWall SMA1000langflow-aiMicrosoftRejetto HTTP FileCitrix NetScaler1635

This record is one instance of CWE-94, improper control of generation of code ('code injection'). The index holds 7185 prior instances of this class, 79 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

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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · no authentication · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v2.0 · NVD's vectorreceipt
Weakness classCWE-94 Improper Control of Generation of Code ('Code Injection')receipt
Published consequencesCWE-94: Access Control: Bypass Protection Mechanism; Access Control: Gain Privileges or Assume Identity; Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands…[email protected]
Ransomware campaign useUnknown to CISAreceipt

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 4 Sep 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.
CISA remediation statusoverdue since 2022-08-10receipt
CISA required actionApply updates per vendor instructions.receipt
Published to CISA KEV2494 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2022-02-10.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 13 public repositories2015-04-16receipt
  • RUNG 3Exploited in the wild · CISA KEV listed2022-02-10receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD10 CRITICALreceipt
Exploit probability0.99999 · top 0.01% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes37 · last 4 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesMicrosoft windows serverreceipt
Published rangesmicrosoft windows server 2008 r2; microsoft windows server 2012 r2receipt

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

HTTP.sys in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8, Windows 8.1, and Windows Server 2012 Gold and R2 allows remote attackers to execute arbitrary code via crafted HTTP requests, aka "HTTP.sys Remote Code Execution Vulnerability." receipt

NVD's analysis a second authority

severity
10 AV:N/AC:L/Au:N/C:C/I:C/A:C
weakness
CWE-94
affected versions
microsoft windows server 2008 r2; microsoft windows server 2012 r2
also scored by
9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

check it yourself docs.microsoft.com exploit-db.com osvdb.org securitytracker.com securityfocus.com exploit-db.com +1 morereceipt

Dated events

2022-02-10Added to CISA KEV2022-08-10CISA remediation due2026-06-15EPSS moved 0.94 to 1.00

Movement the material steps

4 Feb 20220.93779
7 Mar 20230.9755 · scoring model v2023.03.01
17 Mar 20250.9431 · scoring model v2025.03.14
15 Jun 20260.99999 · scoring model v2026.06.15
Show all 23 observations
4 Feb 20220.93779
7 Mar 20230.9755
8 Mar 20230.97550
8 May 20230.97560
15 Jul 20230.97553
7 Nov 20230.97559
20 Dec 20230.97544
29 Feb 20240.97537
8 May 20240.97540
28 Jun 20240.97538
17 Dec 20240.97531
8 Jan 20250.97513
24 Feb 20250.97531
17 Mar 20250.9431
29 Mar 20250.94333
30 Mar 20250.9431
30 Jul 20250.94299
1 Oct 20250.9431
21 Nov 20250.94415
24 Nov 20250.9431
18 Dec 20250.94415
19 Dec 20250.9431
15 Jun 20260.99999

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 0.99999Published2015-04-14Public PoC2015-04-16CISA KEV2022-02-10Index as of2026-09-04

Listed by CISA 2494 days after it published and the record had been public for 11 years, 4 months when this index was last written.

No material movement in 81 days as of the last ingest this index recorded.

Published 2015-04-14 receipt · Public PoC 2015-04-16 receipt · CISA KEV 2022-02-10 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-94, improper control of generation of code ('code injection'). The index holds 7185 prior instances of this class, 79 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2026-15410 · SonicWall SMA1000nothing comparable heldKEV listed · 2026receipt
CVE-2025-3248 · langflow-ai langflownothing comparable heldKEV listed · 2025receipt
CVE-2025-49704 · Microsoft SharePoint Enterprise Server 2016nothing comparable heldKEV listed · 2025receipt
CVE-2024-23692 · Rejetto HTTP File Servernothing comparable heldKEV listed · 2024receipt
CVE-2023-24955 · Microsoft SharePoint Enterprise Server 2016nothing comparable heldKEV listed · 2023receipt
CVE-2023-3519 · Citrix NetScaler ADCnothing comparable heldKEV listed · 2023receipt

"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

7185 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

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What usually comes next

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