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CVE-2026-118527 Known exploited

Use of predictable filenames in Ivanti Connect Secure before versions 25.1.1.3 and 22.8R2.6 allows a remote authenticated attacker to upload files with…

Products / packages Ivanti Connect Secure

Published

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Severity and exploitation

Known exploited
KEV checked 05/11/2026, 06:00:33 UTCAdded 2026-10-30
ivanti · CVSS:3.1 · 4.3
Assessment vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Severity

medium4.3

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Confirmed exploited · CISA KEV

CISA has recorded exploitation in the wild. Review its required action.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Source guidance available

Review the recorded instructions. Guidance may be a workaround rather than a fixed version.

What this means

Ivanti Connect Secure versions before 25.1.1.3 and 22.8R2.6 have a weakness where predictable filenames allow remote authenticated attackers to upload files with controlled content. The stated impact is uploading files to a known location on disk. Required attacker access is remote authentication.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

Ivanti · ivanti

Connect Secure

2 ranges
ivanti version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

unaffected

25.1.1.3

22.8R2.6

unknown

Other versions: affected

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CISA required action ↗

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher description

Use of predictable filenames in Ivanti Connect Secure before versions 25.1.1.3 and 22.8R2.6 allows a remote authenticated attacker to upload files with attacker-controlled content to a known location on disk.

References

2 sources
hub.ivanti.com/s/article/Security-Advisory-Ivanti-Connect-Secure-CVE-2026-104935
Security advisoryivanti
www.cisa.gov/known-exploited-vulnerabilities-catalog
Security advisoryCISA-ADP

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-118527

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-340 ↗

CWE-340: Generation of Predictable Numbers or Identifiers

ivanti

Related →
Contributing organizations · 2
ivanti

Assigning organization

2026-11-03
CISA-ADP

Additional data publisher

2026-11-03

Timeline

All times UTC

  1. Added to CISA KEV

    CISA recorded known exploitation.

  2. Advisory published

    Publication date supplied by the source.

  3. Source updated

    Latest modification date supplied by the source.

  4. Last imported by cve.new

    Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes
  1. CVE · CVE-2026-118527

    Observed 2026-11-03T15:40:59.624Z · upstream updated 2026-11-03T15:32:56.011Z

    References changed

    before

    [
  "https://hub.ivanti.com/s/article/Security-Advisory-Ivanti-Connect-Secure-CVE-2026-104935?language=en_US"
]

    after

    [
  "https://hub.ivanti.com/s/article/Security-Advisory-Ivanti-Connect-Secure-CVE-2026-104935?language=en_US",
  "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-118527"
]
    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-11-03T15:32:15.250213Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "active"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "partial"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.