CVE-2022-24487

published 2022-04-15

CVE-2022-24487: Windows Local Security Authority Subsystem Service (LSASS) Remote Code Execution Vulnerability

Priority P3 56 high 8.8 CVSS 3.1

AV N AC L PR L UI N S U C H I H A H

Windows Local Security Authority Subsystem Service (LSASS) Remote Code Execution Vulnerability

Affected

30 ranges · showing 25

Vendor	Product	Version range	Fixed in
microsoft	windows_10	—	—
microsoft	windows_10	—	—
microsoft	windows_10	—	—
microsoft	windows_10	—	—
microsoft	windows_10	—	—
microsoft	windows_10	—	—
microsoft	windows_10_version_1607	>= 10.0.14393.0 < 10.0.14393.5066	10.0.14393.5066
microsoft	windows_10_version_1809	>= 10.0.0 < 10.0.17763.2803	10.0.17763.2803
microsoft	windows_10_version_1809	>= 10.0.17763.0 < 10.0.17763.2803	10.0.17763.2803
microsoft	windows_10_version_1909	>= 10.0.0 < 10.0.18363.2212	10.0.18363.2212
microsoft	windows_10_version_20h2	>= 10.0.0 < 10.0.19042.1645	10.0.19042.1645
microsoft	windows_10_version_21h1	>= 10.0.0 < 10.0.19043.1645	10.0.19043.1645
microsoft	windows_10_version_21h2	>= 10.0.19043.0 < 10.0.19044.1645	10.0.19044.1645
microsoft	windows_11_version_21h2	>= 10.0.0 < 10.0.22000.613	10.0.22000.613
microsoft	windows_server_2016	—	—
microsoft	windows_server_2016	>= 10.0.14393.0 < 10.0.14393.5066	10.0.14393.5066
microsoft	windows_server_2019	>= 10.0.17763.0 < 10.0.17763.2803	10.0.17763.2803
microsoft	windows_server_2022	>= 10.0.20348.0 < 10.0.20348.643	10.0.20348.643
microsoft	windows_server_version_20h2	>= 10.0.0 < 10.0.19042.1645	10.0.19042.1645
msrc	windows_10_version_1607	—	—
msrc	windows_10_version_1809	—	—
msrc	windows_10_version_1909	—	—
msrc	windows_10_version_20h2	—	—
msrc	windows_10_version_21h1	—	—
msrc	windows_10_version_21h2	—	—

Detection & IOCs extracted from sources · hover to see the quote

• → Attacker must be a local user with a smart card OR already logged on remotely via RDP to the target machine before exploitation can occur. ↗
• → Exploitation vector is a user-mode application sending specially crafted malicious credentials to LSASS. Monitor for anomalous user-mode processes making unusual credential-related calls or IPC to lsass.exe. ↗

• · Exploitation is rated 'Less Likely' for both latest and older software releases, and has not been publicly disclosed or observed in the wild as of advisory publication. ↗
• · Customer action (patching) is required; affected component is Windows LSASS. Relevant KBs include 5012647, 5012591, 5012599, 5012604, 5012592, and 5012596. ↗

CVSS provenance

nvd v3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 7.5 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P

vendor_msrc 8.8 HIGH

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.