CVE-2020-0640
published 2020-01-14CVE-2020-0640: A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka 'Internet Explorer Memory Corruption…
PriorityP183high7.5CVSS 3.1
AVNACHPRNUIRSUCHIHAH
ITWVulnCheck KEVRansomware
Exploited in the wild
EPSS
8.17%
94.2th percentile
A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka 'Internet Explorer Memory Corruption Vulnerability'.
Affected
38 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | internet_explorer | — | — |
| microsoft | internet_explorer | — | — |
| microsoft | internet_explorer | — | — |
| microsoft | internet_explorer_10 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
| microsoft | internet_explorer_11 | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →Vulnerability is triggered when Internet Explorer improperly accesses objects in memory via a specially crafted website; monitor for IE process spawning unexpected child processes or executing arbitrary code in user context ↗
- →Attack vector includes malicious email attachments or links delivered via email/instant message leading to IE memory corruption; monitor for IE launched from email clients or messaging applications ↗
- →The vulnerable component is the Microsoft Scripting Engine within Internet Explorer; focus detection on scripting engine activity (e.g., jscript.dll, vbscript.dll) under iexplore.exe process ↗
- →Compromised or attacker-controlled websites injecting specially crafted content are a delivery vector; monitor web proxy logs for IE user-agent requests to newly registered or low-reputation domains ↗
- ·Exploit status at time of advisory was 'Exploitation Less Likely' for both latest and older software releases, and not yet publicly disclosed or exploited in the wild; prioritize patching over active threat hunting unless context changes ↗
- ·The fix modifies how Internet Explorer handles objects in memory; unpatched systems running IE with the Microsoft Scripting Engine remain at risk regardless of user privilege level, but administrative users face full system compromise ↗
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.07.6HIGHAV:N/AC:H/Au:N/C:C/I:C/A:C
vulncheck7.5HIGH
vendor_msrc6.4MEDIUM
CVEs like this are exactly what “Exploited This Week” covers.
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.
Microsoft
Internet Explorer Memory Corruption Vulnerability
vendor_msrc·2020-01-14·CVSS 6.4
CVE-2020-0640 [HIGH] Internet Explorer Memory Corruption Vulnerability
Internet Explorer Memory Corruption Vulnerability
Description: A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, the attacker could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
An attacker could host a specially crafted website designed to exploit the vulnerability through Internet Explorer and then convince a user to vie
GHSA
GHSA-67rm-568x-hqvj: A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka 'Internet Explorer Memory Corruption Vu
ghsa_unreviewed·2022-05-24
CVE-2020-0640 [HIGH] CWE-119 GHSA-67rm-568x-hqvj: A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka 'Internet Explorer Memory Corruption Vu
A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka 'Internet Explorer Memory Corruption Vulnerability'.
VulnCheck
Microsoft Internet Explorer Out-of-bounds Write
vulncheck·2020·CVSS 7.5
CVE-2020-0640 [HIGH] Microsoft Internet Explorer Out-of-bounds Write
Microsoft Internet Explorer Out-of-bounds Write
A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka 'Internet Explorer Memory Corruption Vulnerability'.
Affected: Microsoft Internet Explorer
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Known Ransomware Campaign Use: Known
Exploitation References: https://www.niiconsulting.com/Security_Advisories/Security_Advisory_Digest_Feb_2020_Edition_1.pdf
No detection rules found.
No public exploits indexed.
Trendmicro
January Patch Tuesday: IE, RDP, Crypto Bugs Updates
blogs_trendmicro·2020-01-15·CVSS 9.8
[CRITICAL] January Patch Tuesday: IE, RDP, Crypto Bugs Updates
## January Patch Tuesday: IE, RDP, Crypto Bugs Updates
Microsoft released 49 patches in this cycle, eight of which are classifed Critical and the remaining 41 as Important. The fixes address a range of products, including RDP Gateway servers, Internet Explorer, CryptoAPI, Office, and OneDrive.
By: Trend Micro 2020/01/15 Read time: ( words)
Save to Folio
2020 starts off with a relatively heavy list of patches for Microsoft users. January is typically a light month for fixes, but Microsoft released patches for 49 vulnerabilities (eight of which are Critical and all the remaining classified as Important) in this cycle. None of these vulnerabilities are known to be under attack at this time.
The listed vulnerabilities covered a range of Microsoft products including Windows RDP Gateway ser
Trendmicro
January Patch Tuesday: IE, RDP, Crypto Bugs Updates
blogs_trendmicro·2020-01-15·CVSS 9.8
[CRITICAL] January Patch Tuesday: IE, RDP, Crypto Bugs Updates
## January Patch Tuesday: IE, RDP, Crypto Bugs Updates
Microsoft released 49 patches in this cycle, eight of which are classifed Critical and the remaining 41 as Important. The fixes address a range of products, including RDP Gateway servers, Internet Explorer, CryptoAPI, Office, and OneDrive.
By: Trend Micro Jan 15, 2020 Read time: ( words)
Save to Folio
2020 starts off with a relatively heavy list of patches for Microsoft users. January is typically a light month for fixes, but Microsoft released patches for 49 vulnerabilities (eight of which are Critical and all the remaining classified as Important) in this cycle. None of these vulnerabilities are known to be under attack at this time.
The listed vulnerabilities covered a range of Microsoft products including Windows RDP Gateway s
Trendmicro
January Patch Tuesday: IE, RDP, Crypto Bugs Updates
blogs_trendmicro·2020-01-15·CVSS 9.8
[CRITICAL] January Patch Tuesday: IE, RDP, Crypto Bugs Updates
# January Patch Tuesday: IE, RDP, Crypto Bugs Updates
Microsoft released 49 patches in this cycle, eight of which are classifed Critical and the remaining 41 as Important. The fixes address a range of products, including RDP Gateway servers, Internet Explorer, CryptoAPI, Office, and OneDrive.
By: Trend Micro
2020/01/15
Read time: ( words)
Save to Folio
2020 starts off with a relatively heavy list of patches for Microsoft users. January is typically a light month for fixes, but Microsoft released patches for 49 vulnerabilities (eight of which are Critical and all the remaining classified as Important) in this cycle. None of these vulnerabilities are known to be under attack at this time.
The listed vulnerabilities covered a range of Microsoft products including Windows RDP Gateway ser
Talos
Microsoft Patch Tuesday — Jan. 2020: Vulnerability disclosures and Snort coverage
blogs_talos·2020-01-14·CVSS 8.1
CVE-2020-0601 [HIGH] Microsoft Patch Tuesday — Jan. 2020: Vulnerability disclosures and Snort coverage
## Microsoft Patch Tuesday — Jan. 2020: Vulnerability disclosures and Snort coverage
By Jon Munshaw. Updated January 15th: Added an Advanced Custom Detection (ACD) signature for AMP that can be used to detect exploitation of CVE-2020-0601 by spoofing certificates masquerading as a Microsoft ECC Code Signing Certificate Authority.
Microsoft released its monthly security update today, disclosing vulnerabilities across many of its products and releasing corresponding updates. This month's Patch Tuesday covers 49 vulnerabilities, eight of which are considered critical.
This month's security update is particularly important for its disclosure of two vulnerabilities related to a core cryptographic component in all versions of Windows. CVE-2020-0601 could allow an attacker to use cryptography
Talos
Microsoft Patch Tuesday — Jan. 2020: Vulnerability disclosures and Snort coverage
blogs_talos·2020-01-14·CVSS 8.1
CVE-2020-0601 [HIGH] Microsoft Patch Tuesday — Jan. 2020: Vulnerability disclosures and Snort coverage
By Jon Munshaw.
Updated January 15th: Added an Advanced Custom Detection (ACD) signature for AMP that can be used to detect exploitation of CVE-2020-0601 by spoofing certificates masquerading as a Microsoft ECC Code Signing Certificate Authority.
Microsoft released its monthly security update today, disclosing vulnerabilities across many of its products and releasing corresponding updates. This month's Patch Tuesday covers 49 vulnerabilities, eight of which are considered critical.
This month's security update is particularly important for its disclosure of two vulnerabilities related to a core cryptographic component in all versions of Windows. CVE-2020-0601 could allow an attacker to use cryptography to sign a malicious executable, making the file appear as if it was from a trusted sou
Crowdstrike
Vulnerability Roundup: 10 Critical CVEs of 2020
blogs_crowdstrike·CVSS 7.5
CVE-2026-20929 [HIGH] Vulnerability Roundup: 10 Critical CVEs of 2020
STARDUST CHOLLIMA Likely Compromises Axios npm Package Apr 01, 2026
Falcon for IT Supports Windows Secure Boot Certificate Lifecycle Management Apr 01, 2026
Detecting CVE-2026-20929: Kerberos Authentication Relay via CNAME Abuse Mar 31, 2026
How Charlotte AI AgentWorks Fuels Security's Agentic Ecosystem Mar 25, 2026
STARDUST CHOLLIMA Likely Compromises Axios npm Package Apr 01, 2026
Falcon for IT Supports Windows Secure Boot Certificate Lifecycle Management Apr 01, 2026
Detecting CVE-2026-20929: Kerberos Authentication Relay via CNAME Abuse Mar 31, 2026
How Charlotte AI AgentWorks Fuels Security's Agentic Ecosystem Mar 25, 2026
Video Highlights the 4 Key Steps to Successful Incident Response Dec 02, 2019
Helping Non-Security Stakeholders Understand ATT&CK in 10 Minutes or Less [VI
Bugzilla
CVE-2020-10782 Tower: rsyslog configuration has world readable permissions
bugzilla·2020-06-17·CVSS 6.5
CVE-2020-10782 [MEDIUM] CVE-2020-10782 Tower: rsyslog configuration has world readable permissions
CVE-2020-10782 Tower: rsyslog configuration has world readable permissions
The /var/lib/awx/rsyslog/rsyslog.conf has world readable permissions which could store some secrets such as the Splunk token. Rsyslog configuration file permissions must be set to 640 instead of 644.
Discussion:
Statement:
* Ansible Tower 3.7.0 is affected.
---
Mitigation:
Setting manual permissions for the rsyslog.conf file to 0640 would mitigate the issue temporarily. However, be aware that every time the Tower services are restarted, the permissions are restored to 644 after some time.
---
This issue has been addressed in the following products:
Red Hat Ansible Tower 3.7 for RHEL 7
Via RHSA-2020:2617 https://access.redhat.com/errata/RHSA-2020:2617
---
This bug is now closed. Further updates for indiv
2020-01-14
Published
Exploited in the wild