Security Resilience

CVE-2022-41033

Memory Safety in Microsoft Windows Server 2008 r2

CISA KEVActive ExploitationEUVD ExploitedMemory Safety
Published
11 October 2022
Modified
12 January 2026
KEV Added
11 October 2022
Patch / advisory
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.019 79th percentile
Risk Priority 83 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2022-41033 is a high-severity Type Confusion (CWE-843) vulnerability in Microsoft Windows Server 2008. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Junk Data (T1001.001); ranked in the top 21% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2022-41033 is an elevation-of-privilege vulnerability in the Windows COM+ Event System Service, assigned CWE-843 and carrying a CVSS 3.1 base score of 7.8. The flaw permits a local attacker to obtain higher privileges on affected Windows systems without requiring user interaction.

An authenticated local user can exploit the weakness to achieve full control over confidentiality, integrity, and availability on the host. Because the attack vector is local and the required privileges are only low, any process or user already present on the system can leverage the bug to escalate to SYSTEM-level access.

Microsoft has published security updates and advisory guidance at the listed MSRC URLs to address the issue. The vulnerability also appears in CISA’s Known Exploited Vulnerabilities catalog, confirming observed in-the-wild exploitation, although the associated EPSS score has remained flat at 0.0174.

EU & UK References

Vulnerability Data

Windows COM+ Event System Service Elevation of Privilege Vulnerability

CWE(s)
KEV Date Added
11 October 2022

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001.001 Junk Data Command And Control
Adversaries may add junk data to protocols used for command and control to make detection more difficult.
T1003 OS Credential Dumping Credential Access
Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password.
T1003.005 Cached Domain Credentials Credential Access
Adversaries may attempt to access cached domain credentials used to allow authentication to occur in the event a domain controller is unavailable.
T1003.006 DCSync Credential Access
Adversaries may attempt to access credentials and other sensitive information by abusing a Windows Domain Controller's application programming interface (API)(Citation: Microsoft DRSR Dec 2017) (Citation: Microsoft GetNCCChanges) (Citati…
T1005 Data from Local System Collection
Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.
T1011.001 Exfiltration Over Bluetooth Exfiltration
Adversaries may attempt to exfiltrate data over Bluetooth rather than the command and control channel.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2019-0752Same product: Microsoft Windows 10 1507both on KEV
CVE-2024-38178Same product: Microsoft Windows 10 1507both on KEV
CVE-2025-30397Same product: Microsoft Windows 10 1507both on KEV
CVE-2023-21675Same product: Microsoft Windows 10 1607
CVE-2017-0037Same product: Microsoft Windows 10 1507both on KEV
CVE-2022-37969Same product: Microsoft Windows 10 1507both on KEV
CVE-2026-21519Same product: Microsoft Windows 10 1607both on KEV
CVE-2022-41128Same product: Microsoft Windows 10 1507both on KEV
CVE-2022-41073Same product: Microsoft Windows 10 1507both on KEV
CVE-2023-21674Same product: Microsoft Windows 10 1507both on KEV

Affected Assets

microsoft
windows 10 1507
≤ 10.0.10240.19507
microsoft
windows 10 1607
≤ 10.0.14393.5427
microsoft
windows 10 1809
≤ 10.0.17763.3532
microsoft
windows 10 20h2
≤ 10.0.19042.2130
microsoft
windows 10 21h1
≤ 10.0.19043.2130
microsoft
windows 10 21h2
≤ 10.0.19044.2130
microsoft
windows 11 21h2
≤ 10.0.22000.1098
microsoft
windows 11 22h2
≤ 10.0.22621.674
microsoft
windows 7
all versions
microsoft
windows 8.1
all versions
+6 more product configuration(s) — see NVD for full list

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.5.2
  • V15.3.5

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 partial match
blocks

Secure SDLC practices directly prevent type-confusion flaws via safe typing, static analysis, and code review while the control itself addresses many additional weaknesses.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

removes
removes
removes
removes
removes

References