vciy

CVE-2021-44077

INDEX BUILT · 2026-09-20

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Zoho ManageEngine ServiceDesk Plus before 11306, ServiceDesk Plus MSP before 10530, and SupportCenter Plus before 11014 are vulnerable to…

CVE-2021-440773 of 4 sources documented this
78

rank 78 = 40 + 25 + 0 + 7 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.93298 · CISA KEV listed  ·  without this subject the record ranks 38

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 53

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 78

How much of the world it touches

NVD CPE configurations

8 products in the CPE ranges  ·  without this subject the record ranks 71

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 72

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$4.66Mover the next 30 days, if this record is yours
Movement+$2.25Mon 2022-02-04, the last material move, 4 years, 7 months before this reading
Basisassumeda published average, not your estate

$4.66M = $4.99M incident cost x 1 exposure x 0.93298 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

0.93298EPSSKEV · LISTED
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationin the wild · KEVreceipt
Defenseunaffected versions publishedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2022-02-04, 1673 days at 0.93, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

Corporationlangflow-aiCVE-2023-28461JetBrainsF5 BIG-IP44077

This record is one instance of CWE-306, missing authentication for critical function. The index holds 3317 prior instances of this class, 54 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-306 Missing Authentication for Critical Functionreceipt
Published consequencesCWE-306: Access Control, Other: Gain Privileges or Assume Identity, Varies by Context[email protected]
Ransomware campaign useUnknown to CISAreceipt

CISA KEV & Federal Remediation Deadline from the record and CISA

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

First unaffected version, by branchmanageengine servicedesk plus 11.1; manageengine servicedesk plus msp 10.5; manageengine supportcenter plus 11.0receipt
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.
CISA remediation statusoverdue since 2021-12-15receipt
CISA required actionApply updates per vendor instructions.receipt
Published to CISA KEV2 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2021-12-01.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 2 public repositories2021-12-08receipt
  • RUNG 3Exploited in the wild · CISA KEV listed2021-12-01receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD9.8 CRITICALreceipt
Exploit probability0.93298 · top 0.17% of all CVEsreceipt
Blast breadth3 products across 1 vendorderived
Assigned bymitrereceipt
Recorded changes75 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesZohocorp manageengine servicedesk plus; Zohocorp manageengine servicedesk plus msp; Zohocorp manageengine supportcenter plusreceipt
Published rangeszohocorp manageengine servicedesk plus < 11.1; zohocorp manageengine servicedesk plus 11.1; zohocorp manageengine servicedesk plus 11.2; zohocorp manageengine servicedesk plus 11.3receipt
Show all 8 published ranges
zohocorp manageengine servicedesk plus < 11.1
zohocorp manageengine servicedesk plus 11.1
zohocorp manageengine servicedesk plus 11.2
zohocorp manageengine servicedesk plus 11.3
zohocorp manageengine servicedesk plus msp < 10.5
zohocorp manageengine servicedesk plus msp 10.5
zohocorp manageengine supportcenter plus < 11.0
zohocorp manageengine supportcenter plus 11.0

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

Zoho ManageEngine ServiceDesk Plus before 11306, ServiceDesk Plus MSP before 10530, and SupportCenter Plus before 11014 are vulnerable to unauthenticated remote code execution. This is related to /RestAPI URLs in a servlet, and ImportTechnicians in the Struts configuration. 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-306
affected versions
zohocorp manageengine servicedesk plus < 11.1; zohocorp manageengine servicedesk plus 11.1; zohocorp manageengine servicedesk plus 11.2; and 5 more, listed in full below
also scored by
9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

check it yourself pitstop.manageengine.com pitstop.manageengine.com pitstop.manageengine.com pitstop.manageengine.com packetstormsecurity.com receipt

Dated events

2021-12-01Added to CISA KEV2021-12-09EPSS moved 0.02 to 0.092021-12-15CISA remediation due2021-12-24EPSS moved 0.09 to 0.442022-02-04EPSS moved 0.48 to 0.93

Movement the material steps

29 Nov 20210.02278
24 Dec 20210.43595 · crossed 0.10
4 Feb 20220.93284 · crossed 0.50 and 0.90
7 Mar 20230.96965 · scoring model v2023.03.01
17 Mar 20250.94333 · scoring model v2025.03.14
15 Jun 20260.93514 · scoring model v2026.06.15
7 Aug 20260.93298
Show all 61 observations
29 Nov 20210.02278
9 Dec 20210.09469
24 Dec 20210.43595
29 Dec 20210.48152
4 Feb 20220.93284
25 Apr 20220.957
19 Oct 20220.96021
7 Mar 20230.96965
1 Apr 20230.97000
14 Apr 20230.97033
28 Apr 20230.97223
11 May 20230.97222
24 May 20230.97235
21 Jun 20230.97208
29 Jun 20230.97345
6 Jul 20230.97363
20 Jul 20230.97373
2 Sep 20230.97396
17 Sep 20230.97398
22 Sep 20230.97264
1 Oct 20230.97194
13 Nov 20230.97254
7 Feb 20240.97392
21 Feb 20240.97395
4 Mar 20240.97367
16 Apr 20240.97375
30 Apr 20240.97362
13 May 20240.97372
27 May 20240.97387
23 Jun 20240.97384
5 Jul 20240.97382
19 Jul 20240.97388
1 Aug 20240.97400
14 Aug 20240.97413
28 Aug 20240.97404
7 Oct 20240.97377
21 Oct 20240.97392
17 Nov 20240.97346
2 Dec 20240.97324
16 Dec 20240.97275
17 Dec 20240.97322
1 Jan 20250.97340
15 Jan 20250.97288
30 Jan 20250.97276
15 Feb 20250.97291
17 Mar 20250.94333
29 Mar 20250.94345
30 Mar 20250.94333
28 May 20250.94174
4 Jun 20250.94333
16 Jun 20250.94174
9 Aug 20250.94333
9 Oct 20250.943
18 Nov 20250.94087
21 Nov 20250.943
11 Feb 20260.94252
14 Feb 20260.943
27 Feb 20260.94252
21 Apr 20260.943
15 Jun 20260.93514
7 Aug 20260.93298

61 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 0.93298Published2021-11-29CISA KEV2021-12-01Public PoC2021-12-08Index as of2026-09-04

Listed by CISA 2 days after it published and the record had been public for 4 years, 9 months when this index was last written.

No material movement in 28 days as of the last ingest this index recorded.

Published 2021-11-29 receipt · CISA KEV 2021-12-01 receipt · Public PoC 2021-12-08 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-306, missing authentication for critical function. The index holds 3317 prior instances of this class, 54 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2026-35273 · Oracle Corporation PeopleSoft Enterprise…matches 8 of 8KEV listed · 2026receipt
CVE-2025-3248 · langflow-ai langflowmatches 8 of 8KEV listed · 2025receipt
CVE-2023-28461matches 8 of 8KEV listed · 2023receipt
CVE-2023-42793 · JetBrains TeamCitymatches 8 of 8KEV listed · 2023receipt
CVE-2023-46747 · F5 BIG-IPmatches 8 of 8KEV listed · 2023receipt
CVE-2022-1388 · F5 BIG-IPmatches 8 of 8KEV listed · 2022receipt

"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

3317 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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What usually comes next

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