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CVE-2006-4343

INDEX BUILT · 2026-09-20

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The get_server_hello function in the SSLv2 client code in OpenSSL 0.9.7 before 0.9.7l, 0.9.8 before 0.9.8d, and earlier versions allows remote…

CVE-2006-43433 of 4 sources documented this
26

rank 26 = 5 + 11 + 0 + 10 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.19068  ·  without this subject the record ranks 21

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 4.3, from NVD  ·  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 26

How much of the world it touches

NVD CPE configurations

20 products in the CPE ranges  ·  without this subject the record ranks 16

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 26

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$272,000over the next 30 days, if this record is yours
Movement-$32,900on 2025-07-19, the last material move, 1 year, 1 month before this reading
Basisassumeda published average, not your estate

$272,000 = $4.99M incident cost x 0.28625080150224425 exposure x 0.19068 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

0.19068EPSSNOT IN KEVas of 2026-09-20
Severity4.3 MEDIUMreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementsteadyreceipt
PLATEAU10Minimal movement since 2026-06-15, 74 days at 0.19, as of 2026-08-28. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

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

Written for the ticket you're about to file.

Reachnetwork-reachable · no authenticationreceipt
ImpactPartial availability lossreceipt
Scored fromCVSS v2.0 · NVD's vectorreceipt
Weakness classCWE-476 NULL Pointer Dereferencereceipt
Published consequencesCWE-476: Availability: DoS: Crash, Exit, or Restart; Integrity, Confidentiality: Execute Unauthorized Code or Commands, Read Memory, Modify Memory[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: 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, NVD4.3 MEDIUMreceipt
Exploit probability0.19068 · top 3% of all CVEsreceipt
Blast breadth3 products across 3 vendorsderived
Assigned byredhatreceipt
Recorded changes26 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesOpenssl; Canonical ubuntu linux; Debian linuxreceipt
Published rangesopenssl 0.9.7; openssl 0.9.7a; openssl 0.9.7b; openssl 0.9.7creceipt
Show all 20 published ranges
openssl 0.9.7
openssl 0.9.7a
openssl 0.9.7b
openssl 0.9.7c
openssl 0.9.7d
openssl 0.9.7e
openssl 0.9.7f
openssl 0.9.7g
openssl 0.9.7h
openssl 0.9.7i
openssl 0.9.7j
openssl 0.9.7k
openssl 0.9.8
openssl 0.9.8a
openssl 0.9.8b
openssl 0.9.8c
debian linux 3.1
canonical ubuntu linux 5.04
canonical ubuntu linux 5.10
canonical ubuntu linux 6.06

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

The get_server_hello function in the SSLv2 client code in OpenSSL 0.9.7 before 0.9.7l, 0.9.8 before 0.9.8d, and earlier versions allows remote servers to cause a denial of service (client crash) via unknown vectors that trigger a null pointer dereference. receipt

NVD's analysis a second authority

severity
4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P
weakness
CWE-476
affected versions
openssl 0.9.7; openssl 0.9.7a; openssl 0.9.7b; and 17 more, listed in full below

check it yourself mandriva.com secunia.com vupen.com exploit-db.com vmware.com secunia.com +14 morereceipt

Dated events

2023-03-07EPSS moved 0.15 to 0.012025-03-17EPSS moved 0.01 to 0.262026-06-15EPSS moved 0.07 to 0.17

Movement the material steps

4 Feb 20220.15272
7 Mar 20230.00915 · crossed 0.10 · scoring model v2023.03.01
17 Mar 20250.25557 · crossed 0.10 · scoring model v2025.03.14
16 Jul 20250.11463
19 Jul 20250.09157 · crossed 0.10
15 Jun 20260.16994 · crossed 0.10 · scoring model v2026.06.15
28 Aug 20260.19068
Show all 26 observations
4 Feb 20220.15272
7 Mar 20230.00915
25 Jun 20230.01082
2 Aug 20230.01780
24 Nov 20230.01566
21 Feb 20240.01112
9 Apr 20240.01566
18 Aug 20240.00936
17 Jan 20250.00887
17 Mar 20250.25557
29 Mar 20250.27724
30 Mar 20250.25557
17 May 20250.2688
9 Jul 20250.23569
16 Jul 20250.11463
19 Jul 20250.09157
30 Jul 20250.09768
1 Oct 20250.07849
27 Oct 20250.09768
28 Oct 20250.07849
15 Nov 20250.06929
27 Dec 20250.0865
28 Dec 20250.06929
15 Jun 20260.16994
26 Jun 20260.17418
28 Aug 20260.19068

26 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 0.19068Published2006-09-28Index as of2026-08-28

The record had been public for 19 years, 11 months when this index was last written.

Published 2006-09-28 receipt · Index as of 2026-08-28 derived

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