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NVD / CVE Program· CNA mitre

CVE-2021-44526: Zoho ManageEngine ServiceDesk Plus before 12003 allows authentication bypass in certain admin configurations.

Noroxi assessment

Priority: Plan (action score 40/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 3.2% (FIRST EPSS); higher than 88.4% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Add it to your regular patch cycle. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded
Published
Dec 23, 2021
Updated
Jun 17, 2026
EPSS
3.2% · 88th percentile
CWE
—

Report tools

JSON

Action score

40

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.2%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2021-44526

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
zohocorpmanageengine servicedesk plus

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • zohocorp manageengine servicedesk plus10.0
  • zohocorp manageengine servicedesk plus10.0.0
  • zohocorp manageengine servicedesk plus10.5
  • zohocorp manageengine servicedesk plus11.0
  • zohocorp manageengine servicedesk plus11.1
  • zohocorp manageengine servicedesk plus11.2
  • zohocorp manageengine servicedesk plus11.3
  • zohocorp manageengine servicedesk plus12.0
  • zohocorp manageengine servicedesk plus8.1
  • zohocorp manageengine servicedesk plus8.2
  • zohocorp manageengine servicedesk plus9.0
  • zohocorp manageengine servicedesk plus9.1
  • zohocorp manageengine servicedesk plus9.2
  • zohocorp manageengine servicedesk plus9.3
  • zohocorp manageengine servicedesk plus9.4

Same product

zohocorp: all records

Other highest-scoring records for the same primary product.

  • CVE-2021-37415Zoho ManageEngine ServiceDesk Plus before 11302 is vulnerable to authentication bypass that allows a few REST-API URLs without authenticatioKEV
    99Now
  • CVE-2021-44077Zoho ManageEngine ServiceDesk Plus before 11306, ServiceDesk Plus MSP before 10530, and SupportCenter Plus before 11014 are vulnerable to unKEV
    97Now
  • CVE-2019-8394Zoho ManageEngine ServiceDesk Plus (SDP) before 10.0 build 10012 allows remote attackers to upload arbitrary files via login page customizatKEV
    75This week

Published before and after this one in the same product

  • ← EarlierCVE-2021-20081Jun 10, 2021 · Incomplete List of Disallowed Inputs in ManageEngine ServiceDesk Plus before version 11205 allows a remote, authenticated attacker to execut
    44Plan
  • ← EarlierCVE-2021-31160Jun 29, 2021 · Zoho ManageEngine ServiceDesk Plus MSP before 10521 allows an attacker to access internal data.
    31Monitor
  • Later →CVE-2021-46065Jan 27, 2022 · A Cross-site scripting (XSS) vulnerability in Secondary Email Field in Zoho ManageEngine ServiceDesk Plus 11.3 Build 11306 allows an attacke
    47Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records