vciy

CVE-2023-25610

INDEX BUILT · 2026-09-20

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A buffer underwrite ('buffer underflow') vulnerability in the administrative interface of Fortinet FortiOS version 7.2.0 through 7.2.3, version 7.0.0…

CVE-2023-256104 of 4 sources documented this
52

rank 52 = 18 + 23 + 1 + 10 + 0

rank@v1 · this cycle

Someone is already using it

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

EPSS 0.18331  ·  without this subject the record ranks 34

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.3, from the CNA  ·  without this subject the record ranks 29

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2025-09-11  ·  without this subject the record ranks 51

How much of the world it touches

NVD CPE configurations

20 products in the CPE ranges  ·  without this subject the record ranks 42

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 52

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$915,000over the next 30 days, if this record is yours
Movement+$122,000on 2025-07-16, the last material move, 1 year, 1 month before this reading
Basisassumeda published average, not your estate

$915,000 = $4.99M incident cost x 1 exposure x 0.18331 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

0.18331EPSSNOT IN KEVas of 2026-09-20
Severity9.3 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationpublic proof-of-conceptreceipt
Defenseunaffected versions publishedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2025-07-06, 421 days at 0.18, as of 2026-08-31. 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

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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 · the CNA's vectorreceipt
Weakness classCWE-124 Buffer Underwrite ('Buffer Underflow')receipt
Published consequencesCWE-124: Integrity, Availability: Modify Memory, DoS: Crash, Exit, or Restart; Integrity, Confidentiality, Availability, Access Control, Other: Execute Unauthorized Code or Commands, Modify Memory…[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 branchfortios 6.2.13; fortios 6.4.12; fortios 7.0.10; fortios 7.2.4; fortios-6k7k 6.2.13; fortios-6k7k 6.4.12receipt
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, 2023-06-17.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 1 public repository2023-06-17receipt
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA9.3 CRITICALreceipt
Exploit probability0.18331 · top 3% of all CVEsreceipt
Blast breadth7 products across 1 vendorderived
Assigned byfortinetreceipt
Recorded changes43 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productFortinet FortiSwitchManager; Fortinet FortiAnalyzer; Fortinet FortiOS-6K7K; Fortinet FortiProxy; Fortinet FortiOS; Fortinet FortiManager; Fortinet FortiWebreceipt
Published rangesfortinet fortiweb >= 6.1.0 < 6.1.4; fortinet fortiweb >= 6.2.0 < 6.2.8; fortinet fortiweb >= 6.3.0 < 6.3.23; fortinet fortiweb >= 6.4.0 < 6.4.3receipt
Show all 20 published ranges
fortinet fortiweb >= 6.1.0 < 6.1.4
fortinet fortiweb >= 6.2.0 < 6.2.8
fortinet fortiweb >= 6.3.0 < 6.3.23
fortinet fortiweb >= 6.4.0 < 6.4.3
fortinet fortiweb >= 7.0.0 < 7.0.7
fortinet fortiweb >= 7.2.0 < 7.2.2
fortinet fortiswitchmanager >= 7.0.0 < 7.0.2
fortinet fortiswitchmanager >= 7.2.0 < 7.2.2
fortinet fortiswitch >= 7.0.0 < 7.0.7
fortinet fortiswitch >= 7.2.0 < 7.2.4
fortinet fortiproxy >= 1.1.0 < 7.0.9
fortinet fortiproxy >= 7.2.0 < 7.2.3
fortinet fortios-6k7k >= 6.0.4 < 6.2.13
fortinet fortios-6k7k >= 6.4.2 < 6.4.12
fortinet fortios-6k7k 7.0.5
fortinet fortios >= 5.0.0 < 6.2.13
fortinet fortios >= 6.4.0 < 6.4.12
fortinet fortios >= 7.0.0 < 7.0.10
fortinet fortios >= 7.2.0 < 7.2.4
fortinet fortimanager >= 6.0.0 < 6.0.12

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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Attack path

Unauthenticated network requestno credentials, no interactionFortinet FortiOSCWE-124 weaknessFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-124data compromise

What it is stated by the CNA

A buffer underwrite ('buffer underflow') vulnerability in the administrative interface of Fortinet FortiOS version 7.2.0 through 7.2.3, version 7.0.0 through 7.0.6, version 6.4.0 through 6.4.11 and version 6.2.12 and below, FortiProxy version 7.2.0 through 7.2.2, version 7.0.0 through 7.0.8, version 2.0.12 and below and FortiOS-6K7K version 7.0.5, version 6.4.0 through 6.4.10 and version 6.2.0 through 6.2.10 and below allows a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests. receipt

NVD's analysis a second authority

weakness
CWE-124
affected versions
fortinet fortiweb >= 6.1.0 < 6.1.4; fortinet fortiweb >= 6.2.0 < 6.2.8; fortinet fortiweb >= 6.3.0 < 6.3.23; and 17 more, listed in full below
also scored by
[email protected] 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

check it yourself fortiguard.com receipt

Dated events

2025-03-27EPSS moved 0.06 to 0.122025-11-18EPSS moved 0.25 to 0.152025-11-21EPSS moved 0.15 to 0.25

Movement the material steps

25 Mar 20250.04545
27 Mar 20250.1178 · crossed 0.10
28 Mar 20250.06222 · crossed 0.10
29 Mar 20250.1178 · crossed 0.10
30 Mar 20250.05855 · crossed 0.10
16 Jul 20250.1078 · crossed 0.10
11 Sep 20250.23083
15 Jun 20260.1436 · scoring model v2026.06.15
31 Aug 20260.18331
Show all 40 observations
25 Mar 20250.04545
26 Mar 20250.06222
27 Mar 20250.1178
28 Mar 20250.06222
29 Mar 20250.1178
30 Mar 20250.05855
14 Apr 20250.06103
15 Apr 20250.06993
23 Apr 20250.06819
25 Apr 20250.0707
26 Apr 20250.07603
14 May 20250.09766
18 May 20250.09162
25 May 20250.07258
31 May 20250.06321
6 Jul 20250.08343
16 Jul 20250.1078
24 Jul 20250.11899
26 Jul 20250.12669
3 Aug 20250.1512
11 Aug 20250.14388
13 Aug 20250.18366
11 Sep 20250.23083
28 Oct 20250.25025
18 Nov 20250.15461
21 Nov 20250.25025
18 Dec 20250.25508
24 Dec 20250.25025
8 Mar 20260.2035
9 Mar 20260.15989
11 May 20260.17237
12 Jun 20260.17798
15 Jun 20260.1436
19 Jun 20260.14294
25 Jun 20260.17797
20 Jul 20260.17659
23 Jul 20260.17313
28 Jul 20260.18334
20 Aug 20260.18176
31 Aug 20260.18331

40 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 0.18331Public PoC2023-06-17Published2025-03-24Index as of2026-08-31

The record had been public for 1 year, 5 months when this index was last written.

Public PoC 2023-06-17 receipt · Published 2025-03-24 receipt · Index as of 2026-08-31 derived

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