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CVE-2019-0863

Exploited in the wild. In CISA KEV since 2021‑11‑03. A vendor fix is available.

CVSS 3.17.8HighEPSS percentile92nd5.2% chance in 30 daysCISA KEVListedsince 2021-11-03, due 2022-05-03
Public exploit: 1 sourceFixVendor fixNo build named by the sources

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 WindowsAffected: 7 for 32-bit Systems Service Pack 1Upgrade to: not statedAffected: 7 for x64-based Systems Service Pack 1Upgrade to: not statedAffected: 8.1 for 32-bit systemsUpgrade to: not statedAffected: 8.1 for x64-based systemsUpgrade to: not stated + 16 more branchesStated by: CVE record
  • Microsoft Windows ServerAffected: 2008 R2 for x64-based Systems Service Pack 1 (Core installation)Upgrade to: not statedAffected: 2008 R2 for Itanium-Based Systems Service Pack 1Upgrade to: not statedAffected: 2008 R2 for x64-based Systems Service Pack 1Upgrade to: not statedAffected: 2012Upgrade to: not stated + 9 more branchesStated by: CVE record
  • Microsoft Windows 10 Version 1903 for 32-bit SystemsAffected: unspecifiedUpgrade to: not statedStated by: CVE record

Versions as the sources state them. 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.

Coverage timeline

0 publishers

  1. Added to CISA KEV catalog

    ·CISA KEV

Sourced from public security reporting — each date is when it was published, not when it happened.

What it is

From the CVE record

An elevation of privilege vulnerability exists in the way Windows Error Reporting (WER) handles files, aka 'Windows Error Reporting Elevation of Privilege Vulnerability'.

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.

EPSS92nd
Public exploit
CISA KEV
CISA KEV

Listed as exploited in the wild since 2021-11-03.

US federal agencies must remediate by 2022-05-03.

Apply updates per vendor instructions.
Public exploits

1 source with a proof of concept or module.

Exploit links, PoCs and Metasploit modules after sign-in
EPSS

5.2% chance of exploitation activity in the next 30 days, which ranks it in the 92nd percentile of scored CVEs.

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

Attention now

Rising.

Lifecycle

The patch came 128 days before any public exploit.

  1. OpenVAS check added
  2. Public exploit / PoCsource: packetstorm
  3. Patch availablerecord updated
  4. Added to CISA KEV
  5. Publishedweakness classified

Affected products

And 30 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:L/UI:N/S:U/C:H/I:H/A:H

Scored 7.8 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 LowRequires basic user-level privileges
  • User Interaction NoneNo user interaction needed — fully automated exploitation

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 HighTotal loss of integrity — attacker can modify any data in the component
  • Availability HighTotal denial of service — the component is completely unavailable

Weaknesses

Sources

References in the record

And 4 more references. See all after sign-in

Watch the software you run.

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We'll flag the next CVE, public exploit or patch for Windows 10 1607, not every advisory. This one: actively exploited.