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CVE-2024-2193

INDEX BUILT · 2026-09-20

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Speculative Race Condition impacts modern CPU architectures that support speculative execution, also known as GhostRace.

CVE-2024-21933 of 4 sources documented this
15

rank 15 = 15 + 0 + 0 + 0 + 0

rank@v1 · backlog

Someone is already using it

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

EPSS 0.01268  ·  without this subject the record ranks 0

What it costs you if it fires

NVD CVSS base score, then the CNA's own

no CVSS held by anyone  ·  without this subject the record ranks 15

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 15

How much of the world it touches

NVD CPE configurations

0 products in the CPE ranges  ·  without this subject the record ranks 15

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 15

Hindsight · the state

0.01268EPSSNOT IN KEVas of 2026-09-20
Severitynot scored
Harmnot stated
Exploitationpublic proof-of-conceptreceipt
Defenseno fix version held
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2024-03-16, 895 days at 0.01, as of 2026-08-28. arc-rules@v1

Foresight · where to check next

Microsoft WindowsLinuxMicrosoft WindowsAndroidGoogle Chrome2193

This record is one instance of CWE-362, concurrent execution using shared resource with improper synchronization ('race condition'). The index holds 2680 prior instances of this class, 12 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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ReachNo CVSS vector in held sources, so no reach or impact can be stated.
Weakness classCWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')receipt
Published consequencesCWE-362: Availability: DoS: Resource Consumption (CPU), DoS: Resource Consumption (Memory), DoS: Resource Consumption (Other); Availability: DoS: Crash, Exit, or Restart, DoS: Instability…[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 · 1 public repository, 2024-03-28.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 1 public repository2024-03-28receipt
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

Exploit probability0.01268 · top 32% of all CVEsreceipt
Assigned bycertccreceipt
Recorded changes34 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productAMD CPU; Xenreceipt

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

A Speculative Race Condition (SRC) vulnerability that impacts modern CPU architectures supporting speculative execution (related to Spectre V1) has been disclosed. An unauthenticated attacker can exploit this vulnerability to disclose arbitrary data from the CPU using race conditions to access the speculative executable code paths. receipt

NVD's analysis a second authority

weakness
CWE-362
also scored by
5.7 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N

check it yourself kb.cert.org xenbits.xen.org vusec.net download.vusec.net git.kernel.org ibm.github.io +6 morereceipt

Dated events

2025-03-19EPSS moved 0.02 to 0.102025-03-30EPSS moved 0.10 to 0.02

Movement the material steps

16 Mar 20240.00044
17 Mar 20250.02308 · scoring model v2025.03.14
19 Mar 20250.10489 · crossed 0.10
20 Mar 20250.02308 · crossed 0.10
27 Mar 20250.10489 · crossed 0.10
28 Mar 20250.02308 · crossed 0.10
29 Mar 20250.10489 · crossed 0.10
30 Mar 20250.02308 · crossed 0.10
15 Jun 20260.01231 · scoring model v2026.06.15
28 Aug 20260.01268

This score more than doubled inside 72 hours. Both observations are in the full history below.

Show all 31 observations
16 Mar 20240.00044
2 May 20240.00045
17 Mar 20250.02308
19 Mar 20250.10489
20 Mar 20250.02308
27 Mar 20250.10489
28 Mar 20250.02308
29 Mar 20250.10489
30 Mar 20250.02308
15 Apr 20250.00638
20 Apr 20250.00804
21 Apr 20250.00822
1 May 20250.01113
12 May 20250.0128
15 May 20250.01315
21 May 20250.0128
3 Jun 20250.01293
4 Aug 20250.01747
17 Aug 20250.01795
30 Aug 20250.01747
26 Sep 20250.01611
3 Oct 20250.01747
17 Nov 20250.01305
18 Nov 20250.02421
21 Nov 20250.01305
5 Jan 20260.01203
5 Mar 20260.00889
3 Apr 20260.00897
8 Jun 20260.01089
15 Jun 20260.01231
28 Aug 20260.01268

31 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 0.01268Published2024-03-15Public PoC2024-03-28Index as of2026-08-28

Exploit probability more than doubled between 2025-03-17 and 2025-03-19 (0.02308 → 0.10489) and the record had been public for 2 years, 5 months when this index was last written.

Published 2024-03-15 receipt · Public PoC 2024-03-28 receipt · Index as of 2026-08-28 derived

The pattern, elsewhere

This record is one instance of CWE-362, concurrent execution using shared resource with improper synchronization ('race condition'). The index holds 2680 prior instances of this class, 12 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2023-36884 · Microsoft Windows 10 Version 1507only 1 attribute comparableKEV listed · 2023receipt
CVE-2025-39964 · Linuxonly 1 attribute comparableKEV listed · 2025receipt
CVE-2025-62215 · Microsoft Windows 10 Version 1809only 1 attribute comparableKEV listed · 2025receipt
CVE-2022-26904 · Microsoft Windows 10 Version 1809only 1 attribute comparableKEV listed · 2022receipt
CVE-2021-0920 · Androidonly 1 attribute comparableKEV listed · 2021receipt
CVE-2021-21166 · Google Chromeonly 1 attribute comparableKEV 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

2680 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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