Microsoft Internet Explorer Information Disclosure Vulnerability
An information disclosure vulnerability exists when Internet Explorer improperly handles objects in memory.An attacker who successfully exploited this vulnerability could test for the presence of files on disk, aka 'Internet Explorer…
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 3 / 5
- KEV catalog (CISA)23 May 2022
- Exploited in EUVD (ENISA)23 May 2022
- Used by ransomwareno
- EPSS above 10 %8.1%
- No account, over the networkyes
What to do
Fix
Apply the vendor’s fix as soon as it is available.
CISA guidance: Apply updates per vendor instructions.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Description ENISA EUVD
An information disclosure vulnerability exists when Internet Explorer improperly handles objects in memory.An attacker who successfully exploited this vulnerability could test for the presence of files on disk, aka 'Internet Explorer Information Disclosure Vulnerability'.
Affected products
- Windows 7 for 32-bit Systems Service Pack 1
- Windows 10 Version 1809 for x64-based Systems
- Windows 8.1 for x64-based systems
- Windows 10 Version 1809 for ARM64-based Systems
- Windows Server 2016
- Windows 10 for 32-bit Systems
- Windows 10 Version 1709 for x64-based Systems
- Windows 10 Version 1809 for 32-bit Systems
- Windows RT 8.1
- Windows 10 Version 1607 for x64-based Systems
- Windows 8.1 for 32-bit systems
- Windows Server 2012 R2
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
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Published
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Exploitation reported (ENISA)
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Added to the KEV catalog
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CISA remediation due date
References
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