CASCACascade Atlas

Evidence dossier

CVE-2021-22893

CVE-2021-22893

72.5–93.7Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

Pulse Connect Secure 9.0R3/9.1R1 and higher is vulnerable to an authentication bypass vulnerability exposed by the Windows File Share Browser and Pulse Secure Collaboration features of Pulse Connect Secure that can allow an unauthenticated user to perform remote arbitrary code execution on the Pulse Connect Secure gateway. This vulnerability has been exploited in the wild.

State
PUBLISHED
Published
Apr 23, 2021
Updated
Oct 21, 2025
Evidence coverage
72%
CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS47.17%

2026-07-18 · v2026.06.15 · percentile 98.7%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

hackeroneoriginal assertion
container

Pulse Connect Secure 9.0R3/9.1R1 and higher is vulnerable to an authentication bypass vulnerability exposed by the Windows File Share Browser and Pulse Secure Collaboration features of Pulse Connect Secure that can allow an unauthenticated user to perform remote arbitrary code execution on the Pulse Connect Secure gateway. This vulnerability has been exploited in the wild.

CISA KEVoriginal assertion
observed_exploitation

Ivanti Pulse Connect Secure Use-After-Free Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.471720000000; percentile 0.987050000000

Applicability

Cited product scope

Trace impact →
n/aPulse Connect Secure
[{"status": "affected", "version": "PCS 9.0R3 or above, PCS 9.1R1 and above"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.0:-:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.0:r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.0:r2:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.0:r2.1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.0:r3:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.0:r3.1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.0:r3.2:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.0:r3.3:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.0:r3.5:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.0:r4:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.0:r4.1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.0:r5.0:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.0:r6.0:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:-:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r10.0:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r10.2:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r11.0:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r11.1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r11.3:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r2:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r3:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r4:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r4.1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r4.2:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r4.3:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r5:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r6:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r7:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r8:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r8.1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r8.2:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r8.4:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r9:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r9.1:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:ivanti:connect_secure:9.1:r9.2:*:*:*:*:*:*supported

Assessments

CVSS by origin

10.0
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
7.5
nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
10.0
CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.