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CVE-2014-1776

INDEX BUILT · 2026-09-20

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Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code or cause a denial of…

CVE-2014-17763 of 4 sources documented this
77

rank 77 = 40 + 25 + 0 + 6 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.88013 · CISA KEV listed  ·  without this subject the record ranks 37

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 52

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 77

How much of the world it touches

NVD CPE configurations

6 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 71

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$4.39Mover 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

$4.39M = $4.99M incident cost x 1 exposure x 0.88013 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

0.88013EPSSKEV · LISTED
Severity10 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationin the wild · KEVreceipt
Defenseno fix version held
Movementscoring model changedreceipt
PLATEAU10Minimal movement since 2025-12-28, 250 days at 0.88, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

Microsoft WindowsLinux KernelMozilla FirefoxPulse ConnectMicrosoftMicrosoft Windows1776

This record is one instance of CWE-416, use after free. The index holds 8701 prior instances of this class, 106 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-416 Use After Freereceipt
Published consequencesCWE-416: Integrity: Modify Memory; Availability: DoS: Crash, Exit, or Restart; Confidentiality: Read Memory; 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 2022-07-28receipt
CISA required actionApply updates per vendor instructions.receipt
Published to CISA KEV2833 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2022-01-28.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed2022-01-28receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD10 CRITICALreceipt
Exploit probability0.88013 · top 0.24% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes54 · last 18 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesMicrosoft internet explorerreceipt
Published rangesmicrosoft internet explorer 6; microsoft internet explorer 7; microsoft internet explorer 8; microsoft internet explorer 9receipt
Show all 6 published ranges
microsoft internet explorer 6
microsoft internet explorer 7
microsoft internet explorer 8
microsoft internet explorer 9
microsoft internet explorer 10
microsoft internet explorer 11

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

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to the CMarkup::IsConnectedToPrimaryMarkup function, as exploited in the wild in April 2014. NOTE: this issue originally emphasized VGX.DLL, but Microsoft clarified that "VGX.DLL does not contain the vulnerable code leveraged in this exploit. Disabling VGX.DLL is an exploit-specific workaround that provides an immediate, effective workaround to help block known attacks." receipt

NVD's analysis a second authority

severity
10 AV:N/AC:L/Au:N/C:C/I:C/A:C
weakness
CWE-416
affected versions
microsoft internet explorer 6; microsoft internet explorer 7; microsoft internet explorer 8; and 3 more, listed in full below
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 securitytracker.com osvdb.org docs.microsoft.com blogs.technet.com secunia.com signalsec.com +4 morereceipt

Dated events

2022-01-28Added to CISA KEV2022-07-28CISA remediation due2023-03-07EPSS moved 0.60 to 0.972026-06-15EPSS moved 0.82 to 0.88

Movement the material steps

4 Feb 20220.59823
7 Mar 20230.97243 · crossed 0.90 · scoring model v2023.03.01
17 Mar 20250.6476 · crossed 0.90 · scoring model v2025.03.14
23 Mar 20250.80198
15 Jun 20260.88013 · scoring model v2026.06.15
Show all 43 observations
4 Feb 20220.59823
7 Mar 20230.97243
8 May 20230.97175
22 May 20230.97257
8 Jul 20230.97312
22 Oct 20230.97243
8 Dec 20230.96925
22 Jan 20240.96765
25 Apr 20240.96565
25 Jul 20240.95988
17 Dec 20240.94104
12 Jan 20250.93799
17 Mar 20250.6476
19 Mar 20250.74216
23 Mar 20250.80198
29 Mar 20250.77884
30 Mar 20250.80198
4 Apr 20250.76913
16 May 20250.77759
30 May 20250.78691
15 Jun 20250.72875
19 Jun 20250.72488
28 Jun 20250.76485
16 Jul 20250.76813
29 Jul 20250.76485
1 Aug 20250.78227
1 Oct 20250.80062
27 Oct 20250.78227
28 Oct 20250.80062
19 Nov 20250.78494
27 Dec 20250.76485
28 Dec 20250.78494
18 Feb 20260.80454
20 Feb 20260.81844
2 Mar 20260.81601
10 Mar 20260.80186
31 Mar 20260.81601
1 Apr 20260.83265
2 Apr 20260.81601
3 Apr 20260.83265
14 Apr 20260.84024
13 Jun 20260.82277
15 Jun 20260.88013

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 0.88013Published2014-04-27CISA KEV2022-01-28Index as of2026-09-04

Listed by CISA 2833 days after it published and the record had been public for 12 years, 4 months when this index was last written.

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

Published 2014-04-27 receipt · CISA KEV 2022-01-28 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-416, use after free. The index holds 8701 prior instances of this class, 106 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2025-29824 · Microsoft Windows 10 Version 1507nothing comparable heldKEV listed · 2025receipt
CVE-2024-1086 · Linux Kernelnothing comparable heldKEV listed · 2024receipt
CVE-2024-9680 · Mozilla Firefoxnothing comparable heldKEV listed · 2024receipt
CVE-2021-22893 · Pulse Connect Securenothing comparable heldKEV listed · 2021receipt
CVE-2021-26411 · Microsoft Internet Explorer 11nothing comparable heldKEV listed · 2021receipt
CVE-2021-40449 · Microsoft Windows 10 Version 1809nothing comparable heldKEV listed · 2021receipt

"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

8701 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

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