vciy

CVE-2019-17133

INDEX BUILT · 2026-09-20

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In the Linux kernel through 5.3.2, cfg80211_mgd_wext_giwessid in net/wireless/wext-sme.c does not reject a long SSID IE, leading to a Buffer Overflow.

CVE-2019-171333 of 4 sources documented this
35

rank 35 = 2 + 25 + 0 + 8 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.06706  ·  without this subject the record ranks 33

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

12 products in the CPE ranges  ·  without this subject the record ranks 27

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$335,000over the next 30 days, if this record is yours
Movement-$1.09Mon 2023-02-22, the last material move, 3 years, 6 months before this reading
Basisassumeda published average, not your estate

$335,000 = $4.99M incident cost x 1 exposure x 0.06706 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

0.06706EPSSNOT IN KEVas of 2026-09-20
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2023-02-22, 1304 days at 0.07, as of 2026-09-18. arc-rules@v1

Foresight · where to check next

SonicWall SonicOSCVE-2018-6789Zyxel ATP seriesCVE-2022-37055CVE-2020-1506917133

This record is one instance of CWE-120, buffer copy without checking size of input ('classic buffer overflow'). The index holds 4490 prior instances of this class, 24 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

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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-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')receipt
Published consequencesCWE-120: Integrity, Confidentiality, Availability: Modify Memory, Execute Unauthorized Code or Commands; Availability: Modify Memory, DoS: Crash, Exit, or Restart, DoS: Resource Consumption (CPU)[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

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

First unaffected version, by branchkernel 3.16.77; kernel 4.14.151; kernel 4.19.81; kernel 4.4.198; kernel 4.9.198; kernel 5.3.8receipt
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 probability0.06706 · top 6% of all CVEsreceipt
Blast breadth4 products across 4 vendorsderived
Assigned bymitrereceipt
Recorded changes36 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesLinux kernel; Debian linux; Canonical ubuntu linux; and 1 morereceipt
Published rangeslinux kernel >= 2.6.32 < 3.16.77; linux kernel >= 3.17 < 4.4.198; linux kernel >= 4.5 < 4.9.198; linux kernel >= 4.10 < 4.14.151receipt
Show all 12 published ranges
linux kernel >= 2.6.32 < 3.16.77
linux kernel >= 3.17 < 4.4.198
linux kernel >= 4.5 < 4.9.198
linux kernel >= 4.10 < 4.14.151
linux kernel >= 4.15 < 4.19.81
linux kernel >= 4.20 < 5.3.8
debian linux 8.0
canonical ubuntu linux 14.04
canonical ubuntu linux 16.04
canonical ubuntu linux 18.04
canonical ubuntu linux 19.04
opensuse leap 15.1

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

In the Linux kernel through 5.3.2, cfg80211_mgd_wext_giwessid in net/wireless/wext-sme.c does not reject a long SSID IE, leading to a Buffer Overflow. 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-120
affected versions
linux kernel >= 2.6.32 < 3.16.77; linux kernel >= 3.17 < 4.4.198; linux kernel >= 4.5 < 4.9.198; and 9 more, listed in full below

check it yourself lists.opensuse.org lists.opensuse.org seclists.org usn.ubuntu.com usn.ubuntu.com usn.ubuntu.com +14 morereceipt

Dated events

2022-01-06EPSS moved 0.05 to 0.192022-04-01EPSS moved 0.25 to 0.032026-06-15EPSS moved 0.02 to 0.07

Movement the material steps

14 Apr 20210.04855
6 Jan 20220.19261 · crossed 0.10
1 Apr 20220.02686 · crossed 0.10
29 Dec 20220.24563 · crossed 0.10
22 Feb 20230.02686 · crossed 0.10
7 Mar 20230.00576 · scoring model v2023.03.01
17 Mar 20250.02087 · scoring model v2025.03.14
15 Jun 20260.06652 · scoring model v2026.06.15
18 Sep 20260.06706
Show all 36 observations
14 Apr 20210.04855
15 Jun 20210.05048
6 Jan 20220.19261
4 Feb 20220.24563
1 Apr 20220.02686
29 Dec 20220.24563
22 Feb 20230.02686
7 Mar 20230.00576
8 Aug 20230.00637
13 Nov 20230.00858
28 Jan 20240.01213
27 Sep 20240.01648
17 Dec 20240.02572
24 Feb 20250.02516
17 Mar 20250.02087
19 Mar 20250.01098
20 Mar 20250.02087
27 Mar 20250.01098
28 Mar 20250.02087
29 Mar 20250.01098
30 Mar 20250.02087
10 Jun 20250.01955
21 Jun 20250.01678
30 Jul 20250.01046
30 Aug 20250.0082
2 Sep 20250.00802
3 Sep 20250.00814
1 Oct 20250.0156
27 Oct 20250.00814
28 Oct 20250.0156
18 Nov 20250.09501
21 Nov 20250.0156
27 Dec 20250.00814
28 Dec 20250.0156
15 Jun 20260.06652
18 Sep 20260.06706

36 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 0.06706Published2019-10-04Index as of2026-09-18

The record had been public for 6 years, 11 months when this index was last written.

Published 2019-10-04 receipt · Index as of 2026-09-18 derived

The pattern, elsewhere

This record is one instance of CWE-120, buffer copy without checking size of input ('classic buffer overflow'). The index holds 4490 prior instances of this class, 24 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2020-5135 · SonicWall SonicOSmatches 8 of 8KEV listed · 2020receipt
CVE-2018-6789matches 8 of 8KEV listed · 2018receipt
CVE-2023-33009 · Zyxel ATP series firmwarematches 8 of 8KEV listed · 2023receipt
CVE-2023-33010 · Zyxel ATP series firmwarematches 8 of 8KEV listed · 2023receipt
CVE-2022-37055matches 8 of 8KEV listed · 2022receipt
CVE-2020-15069matches 8 of 8KEV listed · 2020receipt

"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

4490 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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