How severe is CVE-2019-1322?

CVE-2019-1322 has a CVSS score of 7.8/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2019-1322?

Affected package information for CVE-2019-1322 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2019-1322?

No fixed version has been published for CVE-2019-1322 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2019-1322 actively exploited in the wild?

Yes. There are 7 known exploit references for CVE-2019-1322, including 2 documented proof-of-concept exploits on Exploit-DB and 5 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2019-1322?

CVE-2019-1322 has an EPSS (Exploit Prediction Scoring System) score of 36.5%, placing it in the 97th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score warrants monitoring and prompt remediation.

Is CVE-2019-1322 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2019-1322 (Microsoft Windows Privilege Escalation Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2022-03-15. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-04-05. The required action was: Apply updates per vendor instructions. This CVE has been used in known ransomware campaigns. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

Which products and versions are affected by CVE-2019-1322?

CVE-2019-1322 affects microsoft windows 10 1803; microsoft windows 10 1809; microsoft windows 10 1903; microsoft windows server 1803, and 2 more product(s). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2019-1322 published, and has it been updated?

CVE-2019-1322 was published on October 10, 2019 and was last updated on October 29, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2022-03-15 — agencies required to remediate by 2022-04-05 · Ransomware

CVE-2019-1322

HIGH

An elevation of privilege vulnerability exists when Windows improperly handles authentication requests, aka 'Microsoft Windows Elevation of Privilege Vulnerability'. This CVE ID is…

Published

Oct 10, 2019

Updated

Oct 29, 2025

Affected

0 pkgs

Patched

None yet

Exploits

7 known

EPSS Exploitation Probability

via FIRST.org ↗

36.5%probability of exploitation in next 30 days

Moderate Risk97th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

An elevation of privilege vulnerability exists when Windows improperly handles authentication requests, aka 'Microsoft Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1320, CVE-2019-1340.

Affected Products

6 products · 12 configurations

windows 10 1803microsoft

all

windows 10 1809microsoft

all

windows 10 1903microsoft

all

windows server 1803microsoft

all

windows server 1903microsoft

all

windows server 2019microsoft

all

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-47805localwindows✓ Verified

Microsoft UPnP - Local Privilege Elevation (Metasploit)

by Metasploit · Dec 30, 2019

Exploit-DB Source

EDB-47684localwindows

Microsoft Windows 10 Build 1803 < 1903 - 'COMahawk' Local Privilege Escalation

by TomahawkAPT69 · Nov 14, 2019

Exploit-DB Source

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2019-1322 in your stack?

O3 detects CVE-2019-1322 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works