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CVE-2026-77873

An improper permissions vulnerability was reported in Lenovo System Update that could allow a local authenticated user to execute code with elevated privileges.

Products / packages Lenovo System Update

Published

Share

Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 14/11/2026, 22:25:34 UTC
lenovo · CVSS:4.0 · 7
Assessment vectorCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
lenovo · CVSS:3.1 · 7.3
Assessment vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
The headline uses the highest imported catalog score. Assessments can differ by source and CVSS version.

Severity

high7.3

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

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

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

Lenovo System Update versions up to 5.08.03.59 have an improper permissions vulnerability, allowing local authenticated users to execute code with elevated privileges. The weakness is due to incorrect default permissions. A local authenticated user is required to exploit the vulnerability.

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.

Lenovo · lenovo

System Update

1 range
lenovo version evidence

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

affected

0 → through 5.08.03.59

custom versions

unaffected

unknown

Other versions: unaffected

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.

As of October 31, 2026, Lenovo System Update has reached end of support status, and no further updates will be released to address these vulnerabilities.  Lenovo recommends that users uninstall Lenovo System Update as soon as possible and migrate to Lenovo Commercial Vantage ( Lenovo Commercial Vantage - Lenovo Support US https://support.lenovo.com/us/en/solutions/hf003321 ).

lenovo guidance ↗

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

An improper permissions vulnerability was reported in Lenovo System Update that could allow a local authenticated user to execute code with elevated privileges.

References

2 sources
support.lenovo.com/us/en/product_security/LEN-232748
Vendor advisorylenovo
support.lenovo.com/us/en/downloads/ds012808
Source referencelenovo

Inside the record

Evidence available

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

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

Original records

CVE-2026-77873

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-276 ↗

CWE-276: Incorrect Default Permissions

lenovo

Related →

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

lenovo · platform conditions

Any condition may hold

Any condition may hold

Vulnerable product

cpe:2.3:a:lenovo:system_update:*:*:*:*:*:*:*:*

From (inclusive): 0

Through (inclusive): 5.08.03.59

Applicability preview
[
  {
    "operator": "OR",
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:lenovo:system_update:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "0",
            "versionEndIncluding": "5.08.03.59"
          }
        ]
      }
    ]
  }
]
Contributing organizations · 1
lenovo

Assigning organization

2026-11-11

Timeline

All times UTC

  1. Advisory published

    Publication date supplied by the source.

  2. Last imported by cve.new

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

What changed

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No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

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