vciy

CVE-2007-1252

INDEX BUILT · 2026-09-20

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Buffer overflow in Symantec Mail Security for SMTP 5.0 before Patch 175 allows remote attackers to cause a denial of service (crash) and possibly…

CVE-2007-12523 of 4 sources documented this
27

rank 27 = 2 + 23 + 0 + 2 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.06841  ·  without this subject the record ranks 25

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.3, from NVD  ·  without this subject the record ranks 4

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 27

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 25

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 27

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$341,000over the next 30 days, if this record is yours
Movement+$784,000on 2024-12-17, the last material move, 1 year, 5 months before this reading
Basisassumeda published average, not your estate

$341,000 = $4.99M incident cost x 1 exposure x 0.06841 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

0.06841EPSSNOT IN KEVas of 2026-09-20
Severity9.3 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementthreshold crossedreceipt
PLATEAU10Minimal movement since 2025-03-17, 455 days at 0.07, as of 2026-06-15. 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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AcceptDeferPatch by…Not affectedMitigated

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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
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v2.0 · NVD's vectorreceipt
Weakness classNo CWE mapping in held sources.

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 15 Jun 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, NVD9.3 CRITICALreceipt
Exploit probability0.06841 · top 6% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bymitrereceipt
Recorded changes14 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesSymantec mail securityreceipt
Published rangessymantec mail security 5.0receipt

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

Buffer overflow in Symantec Mail Security for SMTP 5.0 before Patch 175 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted headers in an e-mail message. NOTE: some information was obtained from third party sources. receipt

NVD's analysis a second authority

severity
9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C
affected versions
symantec mail security 5.0

check it yourself exchange.xforce.ibmcloud.com securityfocus.com vupen.com securitytracker.com ftp: osvdb.org +2 morereceipt

Dated events

2024-12-17EPSS moved 0.09 to 0.252025-03-17EPSS moved 0.24 to 0.142026-06-15EPSS moved 0.11 to 0.07

Movement the material steps

4 Feb 20220.0547
7 Mar 20230.07525 · scoring model v2023.03.01
17 Dec 20240.24579 · crossed 0.10
17 Mar 20250.14212 · scoring model v2025.03.14
15 Jun 20260.06841 · crossed 0.10 · scoring model v2026.06.15
Show all 14 observations
4 Feb 20220.0547
7 Mar 20230.07525
5 Aug 20230.08787
28 Nov 20230.07520
28 Apr 20240.06469
6 Nov 20240.08877
17 Dec 20240.24579
21 Jan 20250.24464
17 Mar 20250.14212
29 Mar 20250.16168
30 Mar 20250.14212
28 Aug 20250.11076
20 Oct 20250.11468
15 Jun 20260.06841

14 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 0.06841Published2007-03-03Index as of2026-06-15

The record had been public for 19 years, 3 months when this index was last written.

Published 2007-03-03 receipt · Index as of 2026-06-15 derived

Siblings and hubs

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What usually comes next

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