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CVE-2020-1342

No known exploitation. EPSS puts it in the 94th percentile. A vendor fix is available.

CVSS 3.15.5MediumEPSS percentile94th6.4% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFixVendor fixNo build named by the sources
Check it yourself

OpenVAS · 11 checks

e.g. OID 1.3.6.1.4.1.25623.1.0.817085

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Published Updated Sources: CVE.org, NVD, BDU

NVD CVE.org

What to do

The vendor has published a fix. Version details are below where the sources state them.

  • Microsoft SharePoint Enterprise ServerAffected: 2016Upgrade to: not statedAffected: 2013 Service Pack 1Upgrade to: not statedStated by: CVE record
  • Microsoft SharePoint ServerAffected: 2019Upgrade to: not statedAffected: 2010 Service Pack 2Upgrade to: not statedStated by: CVE record
  • Microsoft OfficeAffected: 2019 for 32-bit editionsUpgrade to: not statedAffected: 2019 for 64-bit editionsUpgrade to: not statedAffected: 2019 for MacUpgrade to: not statedAffected: 2016 for MacUpgrade to: not stated + 2 more branchesStated by: CVE record
  • Microsoft Office Online ServerAffected: unspecifiedUpgrade to: not statedStated by: CVE record
  • Microsoft 365 Apps for Enterprise for 32-bit SystemsAffected: unspecifiedUpgrade to: not statedStated by: CVE record

Versions as the sources state them. 3 more products have version data. Full version matrix after sign-in

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka 'Microsoft Office Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-1445.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS94th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

6.4% chance of exploitation activity in the next 30 days, which ranks it in the 94th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

7 events over 2172 days, from the signal feeds we watch.

  1. OpenVAS check added
  2. EPSS band changemoderate → low
  3. Patch availablerecord updated
  4. Publishedweakness classified, att&ck mapped

Affected products

And 20 more affected products. See all after sign-in

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

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

Scored 5.5 by NVD.

How it is reached

  • Attack Vector LocalRequires local access to the vulnerable system (e.g. local login, malicious file)
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required NoneNo authentication required — anyone can exploit this
  • User Interaction RequiredA user must click a link, open a file, or perform some action

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity NoneNo integrity impact
  • Availability NoneNo availability impact

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

References in the record

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