vciy

CVE-2024-1283

INDEX BUILT · 2026-09-20

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Heap buffer overflow in Skia in Google Chrome prior to 121.0.6167.160 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page

CVE-2024-12834 of 4 sources documented this
35

rank 35 = 5 + 25 + 0 + 5 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.18724  ·  without this subject the record ranks 30

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.8, from NVD  ·  without this subject the record ranks 10

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 35

How much of the world it touches

NVD CPE configurations

3 products in the CPE ranges  ·  without this subject the record ranks 30

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 35

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$934,000over the next 30 days, if this record is yours
Movement+$858,000on 2026-07-24, the last material move
Basisassumeda published average, not your estate

$934,000 = $4.99M incident cost x 1 exposure x 0.18724 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

0.18724EPSSNOT IN KEVas of 2026-09-20
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementthreshold crossedreceipt
RISING10Risen from 0.00094 to 0.18724 across 55 observations. arc-rules@v1

Foresight · where to check next

FortinetFortinetGoogle ChromeSonicWall SMA100Microsoft Windows1283

This record is one instance of CWE-787, out-of-bounds write. The index holds 14893 prior instances of this class, 164 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

Running Google Chrome? 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

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Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-787 Out-of-bounds Write; CWE-122 Heap-based Buffer Overflowreceipt
Published consequencesCWE-787: Integrity: Modify Memory, Execute Unauthorized Code or Commands; Availability: DoS: Crash, Exit, or Restart; Other: Unexpected State[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed in121.0.6167.160receipt
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, NVD9.8 CRITICALreceipt
Exploit probability0.18724 · top 3% of all CVEsreceipt
Blast breadth2 products across 2 vendorsderived
Assigned byChromereceipt
Recorded changes55 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productGoogle Chromereceipt
Published rangesgoogle chrome < 121.0.6167.160; fedoraproject fedora 38; fedoraproject fedora 39receipt
Fixed in121.0.6167.160receipt

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

Heap buffer overflow in Skia in Google Chrome prior to 121.0.6167.160 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High) receipt

NVD's analysis a second authority

severity
9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-787; CWE-122
affected versions
google chrome < 121.0.6167.160; fedoraproject fedora 38; fedoraproject fedora 39
also scored by
8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

check it yourself chromereleases.googleblog.com issues.chromium.org lists.fedoraproject.org lists.fedoraproject.org receipt

Dated events

2025-03-19EPSS moved 0.02 to 0.182026-07-24EPSS moved 0.02 to 0.19

Movement the material steps

8 Feb 20240.00094
17 Mar 20250.02263 · scoring model v2025.03.14
19 Mar 20250.18071 · crossed 0.10
20 Mar 20250.02263 · crossed 0.10
27 Mar 20250.18071 · crossed 0.10
28 Mar 20250.02263 · crossed 0.10
29 Mar 20250.18071 · crossed 0.10
30 Mar 20250.02263 · crossed 0.10
15 Jun 20260.0152 · scoring model v2026.06.15
24 Jul 20260.18724 · crossed 0.10

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

Show all 55 observations
8 Feb 20240.00094
9 Feb 20240.00107
15 Feb 20240.00085
17 Dec 20240.00082
6 Jan 20250.00095
12 Feb 20250.00165
10 Mar 20250.00197
17 Mar 20250.02263
19 Mar 20250.18071
20 Mar 20250.02263
27 Mar 20250.18071
28 Mar 20250.02263
29 Mar 20250.18071
30 Mar 20250.02263
15 Apr 20250.02167
1 May 20250.03166
4 May 20250.02167
15 May 20250.01725
22 May 20250.01591
1 Jun 20250.02333
4 Jun 20250.01591
17 Jun 20250.02167
24 Jun 20250.03034
1 Jul 20250.0509
4 Jul 20250.03034
16 Jul 20250.03116
17 Jul 20250.03431
29 Jul 20250.02741
30 Jul 20250.02422
1 Aug 20250.04086
4 Aug 20250.02422
1 Sep 20250.04086
2 Sep 20250.0509
4 Sep 20250.03034
16 Sep 20250.03116
19 Sep 20250.02226
26 Sep 20250.01725
1 Oct 20250.02528
4 Oct 20250.01725
30 Oct 20250.02167
1 Nov 20250.03166
4 Nov 20250.02167
18 Nov 20250.02445
21 Nov 20250.02167
1 Dec 20250.03166
4 Dec 20250.02167
1 Jan 20260.03166
4 Jan 20260.02167
1 Feb 20260.02924
4 Feb 20260.01999
24 Feb 20260.02686
1 Mar 20260.03911
4 Mar 20260.02686
15 Jun 20260.0152
24 Jul 20260.18724

55 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 0.18724Published2024-02-06Index as of2026-07-24

Exploit probability more than doubled between 2025-03-17 and 2025-03-19 (0.02263 → 0.18071) and the record had been public for 2 years, 5 months when this index was last written.

Published 2024-02-06 receipt · Index as of 2026-07-24 derived

The pattern, elsewhere

This record is one instance of CWE-787, out-of-bounds write. The index holds 14893 prior instances of this class, 164 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2023-27997 · Fortinet FortiOS-6K7Kmatches 9 of 10KEV listed · 2023receipt
CVE-2024-21762 · Fortinet FortiProxymatches 8 of 10KEV listed · 2024receipt
CVE-2022-42475 · Fortinet FortiProxymatches 8 of 10KEV listed · 2023receipt
CVE-2022-2294 · Google Chromematches 8 of 10KEV listed · 2022receipt
CVE-2021-20038 · SonicWall SMA100matches 8 of 10KEV listed · 2021receipt
CVE-2024-30051 · Microsoft Windows 10 Version 1809matches 7 of 10KEV 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

14893 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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