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CWE-665

Improper Initialization

238 CVEs Avg CVSS 6.4 MITRE
13
CRITICAL
89
HIGH
117
MEDIUM
17
LOW
30
POC
3
KEV

Monthly

CVE-2026-78940 MEDIUM PATCH This Month

Chrome's Network subsystem before version 152.0.7977.65 allows remote attackers to bypass the browser's web origin policy due to improper initialization (CWE-665), exploitable via a crafted HTML page that requires user interaction. The impact is limited to partial confidentiality disclosure (C:L), with no integrity or availability consequences, and the CVSS score of 4.3 (Medium) aligns with EPSS exploitation probability of 0.36% (29th percentile). No public exploit code or CISA KEV listing exists at the time of analysis; a vendor patch is available in the stable channel.

Google Authentication Bypass
NVD
CVSS 3.1
4.3
EPSS
0.4%
CVE-2026-12233 MEDIUM PATCH This Month

Concurrent TLS handshakes on Zephyr RTOS devices built with CONFIG_TLS_CREDENTIALS_BACKEND_PROTECTED_STORAGE cause a deterministic kernel panic and device reset via a NULL pointer dereference in the uninitialized credential mutex wait queue. The PSA Protected Storage credential backend in all affected Zephyr builds declared its serialization mutex without proper initialization, leaving its dlist sentinels as NULL; the fault triggers only on first contention but is fully deterministic once two threads race to acquire the lock. No public exploit has been identified and the issue is not in CISA KEV, though no exploit sophistication is required beyond opening multiple simultaneous TLS connections.

Buffer Overflow Denial Of Service Zephyr
NVD GitHub
CVSS 3.1
5.9
EPSS
31.0%
CVE-2026-20734 MEDIUM This Month

Intel Active Management Technology (Intel AMT) and Intel Standard Manageability firmware contain an improper initialization flaw (CWE-665) that enables confidentiality compromise by a locally privileged system software adversary. The vulnerability arises when firmware fails to properly initialize memory or state, allowing residual data to be read by a subsequent privileged operation under specific attack conditions (AT:P per CVSS 4.0). No CISA KEV listing exists and no public proof-of-concept has been identified; Intel reported this through their own security advisory program (INTEL-SA-01427) and the CVSS 4.0 base score of 5.6 reflects the constrained local, high-privilege exploitation prerequisites.

Intel Information Disclosure Intel R Active Management Technology Intel R Amt And Some Intel R Standard Manageability May Allow An Information Disclosure System Software Adversary With A Privileged User Combined With A Low Complexity Attack May Enable Data Exposure This Result May Potentially Occur Via Local Access When Attack Requirements Are Present Without Special Internal Knowledge And Requires No User Interaction The Potential Vulnerability May Impact The Confidentiality High Integrity None And Availability None Of The Vulnerable System Resulting In Subsequent System Confidentiality None Integrity None And Availability None Impacts
NVD
CVSS 4.0
5.6
EPSS
0.1%
CVE-2026-62433 HIGH PATCH This Week

Information disclosure in the Xen hypervisor's DM_OP (device model operation) hypercall handling allows a device model caller to leak uninitialized hypervisor stack memory because certain operations do not verify that the required number of buffers was supplied before reading them. Affected Xen builds process DM_OP requests using structures that may remain uninitialized ('stack rubble'), disclosing low-value memory contents (CWE-665) with limited integrity and availability side effects. No public exploit has been identified at time of analysis; SSVC records exploitation status as none, EPSS is low (0.26%, 18th percentile), and it is not on CISA KEV.

Information Disclosure Suse
NVD VulDB
CVSS 3.1
7.3
EPSS
0.3%
CVE-2026-64775 CRITICAL PATCH Act Now

Unexpected system termination due to memory initialization flaw in Apple iOS, iPadOS, macOS, tvOS, watchOS, and visionOS allows a malicious application to forcibly crash the device. All versions prior to the listed fixed releases are affected. No active exploitation or publicly available exploit code was identified at time of analysis; EPSS indicates a low (0.16%) probability of exploitation.

Apple Information Disclosure Ios And Ipados Tvos Visionos +1
NVD
CVSS 3.1
9.8
EPSS
0.2%
CVE-2026-54409 HIGH PATCH This Week

Authentication bypass in Ubiquiti UniFi Protect Application (versions prior to 7.1.83) allows a network-adjacent attacker to circumvent authentication controls on UniFi Protect Cameras via an improper initialization flaw. The bypass yields total compromise of camera confidentiality, integrity, and availability, though exploitation depends on certain unspecified conditions and carries high attack complexity. No public exploit is identified at time of analysis, and EPSS probability is low (0.24%), consistent with the CISA SSVC assessment of no known exploitation.

Authentication Bypass Ubiquiti Unifi Protect Application
NVD
CVSS 3.1
8.1
EPSS
0.2%
CVE-2026-12539 MEDIUM PATCH This Month

ICMP egress policy bypass in Docker Sandboxes (sbx) allows untrusted workloads - explicitly including AI agents - to defeat the documented ICMP block and reach arbitrary external hosts after a Docker daemon restart. The authorizer enforcing the ICMP egress restriction is applied only at network-creation time and is never re-applied when the daemon reconstructs network state from disk on restart, leaving the policy unenforced for the lifetime of the rebuilt network. No public exploit has been identified at time of analysis, but the bypass enables network reconnaissance and covert-channel data exfiltration directly contradicting the sbx threat model, which treats sandbox workloads as adversarial.

Information Disclosure Docker
NVD GitHub VulDB
CVSS 4.0
5.7
EPSS
0.1%
CVE-2026-54279 PyPI LOW PATCH GHSA Monitor

Cookie scope escalation in aiohttp's CookieJar persistence layer causes host-only cookies to lose their host-restricted status after a save/load cycle, allowing them to be transmitted to subdomains that the original server never authorized to receive them. Applications using pip/aiohttp <= 3.14.0 that invoke CookieJar.save() and CookieJar.load() for session persistence are affected. No public exploit code has been identified at time of analysis, but the impact is information disclosure: sensitive cookies - including session tokens or authentication credentials - may be sent to unintended subdomain endpoints, violating the HTTP cookie scoping model.

Information Disclosure
NVD GitHub VulDB
CVSS 4.0
1.3
EPSS
0.3%
CVE-2025-35991 MEDIUM This Month

Improper initialization in Intel UEFI firmware (Ring 0 / Bare Metal OS layer) enables information disclosure on some Intel platforms. A system software-level adversary already holding high privileges can exploit this flaw under high-complexity, prerequisite-dependent conditions to expose sensitive memory contents, with confidentiality impact rated high but no integrity or availability effect. No public exploit exists and EPSS sits at 0.01% (2nd percentile), and SSVC classifies exploitation status as none - signals that are mutually consistent and indicate this is a low-urgency finding for most organizations.

Intel Information Disclosure Intel Platforms
NVD
CVSS 4.0
5.6
EPSS
0.0%
CVE-2026-0940 MEDIUM This Month

Improper BIOS initialization in certain ThinkPad models enables local privileged users to modify system data and execute arbitrary code with high integrity impact. The vulnerability requires elevated privileges and local access, posing a risk to organizations where administrative users may be compromised or untrusted. No patch is currently available.

NVD VulDB
CVSS 3.1
6.7
EPSS
0.0%
EPSS 0% CVSS 4.3
MEDIUM PATCH This Month

Chrome's Network subsystem before version 152.0.7977.65 allows remote attackers to bypass the browser's web origin policy due to improper initialization (CWE-665), exploitable via a crafted HTML page that requires user interaction. The impact is limited to partial confidentiality disclosure (C:L), with no integrity or availability consequences, and the CVSS score of 4.3 (Medium) aligns with EPSS exploitation probability of 0.36% (29th percentile). No public exploit code or CISA KEV listing exists at the time of analysis; a vendor patch is available in the stable channel.

Google Authentication Bypass
NVD
EPSS 31% CVSS 5.9
MEDIUM PATCH This Month

Concurrent TLS handshakes on Zephyr RTOS devices built with CONFIG_TLS_CREDENTIALS_BACKEND_PROTECTED_STORAGE cause a deterministic kernel panic and device reset via a NULL pointer dereference in the uninitialized credential mutex wait queue. The PSA Protected Storage credential backend in all affected Zephyr builds declared its serialization mutex without proper initialization, leaving its dlist sentinels as NULL; the fault triggers only on first contention but is fully deterministic once two threads race to acquire the lock. No public exploit has been identified and the issue is not in CISA KEV, though no exploit sophistication is required beyond opening multiple simultaneous TLS connections.

Buffer Overflow Denial Of Service Zephyr
NVD GitHub
EPSS 0% CVSS 5.6
MEDIUM This Month

Intel Active Management Technology (Intel AMT) and Intel Standard Manageability firmware contain an improper initialization flaw (CWE-665) that enables confidentiality compromise by a locally privileged system software adversary. The vulnerability arises when firmware fails to properly initialize memory or state, allowing residual data to be read by a subsequent privileged operation under specific attack conditions (AT:P per CVSS 4.0). No CISA KEV listing exists and no public proof-of-concept has been identified; Intel reported this through their own security advisory program (INTEL-SA-01427) and the CVSS 4.0 base score of 5.6 reflects the constrained local, high-privilege exploitation prerequisites.

Intel Information Disclosure Intel R Active Management Technology Intel R Amt And Some Intel R Standard Manageability May Allow An Information Disclosure System Software Adversary With A Privileged User Combined With A Low Complexity Attack May Enable Data Exposure This Result May Potentially Occur Via Local Access When Attack Requirements Are Present Without Special Internal Knowledge And Requires No User Interaction The Potential Vulnerability May Impact The Confidentiality High Integrity None And Availability None Of The Vulnerable System Resulting In Subsequent System Confidentiality None Integrity None And Availability None Impacts
NVD
EPSS 0% CVSS 7.3
HIGH PATCH This Week

Information disclosure in the Xen hypervisor's DM_OP (device model operation) hypercall handling allows a device model caller to leak uninitialized hypervisor stack memory because certain operations do not verify that the required number of buffers was supplied before reading them. Affected Xen builds process DM_OP requests using structures that may remain uninitialized ('stack rubble'), disclosing low-value memory contents (CWE-665) with limited integrity and availability side effects. No public exploit has been identified at time of analysis; SSVC records exploitation status as none, EPSS is low (0.26%, 18th percentile), and it is not on CISA KEV.

Information Disclosure Suse
NVD VulDB
EPSS 0% CVSS 9.8
CRITICAL PATCH Act Now

Unexpected system termination due to memory initialization flaw in Apple iOS, iPadOS, macOS, tvOS, watchOS, and visionOS allows a malicious application to forcibly crash the device. All versions prior to the listed fixed releases are affected. No active exploitation or publicly available exploit code was identified at time of analysis; EPSS indicates a low (0.16%) probability of exploitation.

Apple Information Disclosure Ios And Ipados +3
NVD
EPSS 0% CVSS 8.1
HIGH PATCH This Week

Authentication bypass in Ubiquiti UniFi Protect Application (versions prior to 7.1.83) allows a network-adjacent attacker to circumvent authentication controls on UniFi Protect Cameras via an improper initialization flaw. The bypass yields total compromise of camera confidentiality, integrity, and availability, though exploitation depends on certain unspecified conditions and carries high attack complexity. No public exploit is identified at time of analysis, and EPSS probability is low (0.24%), consistent with the CISA SSVC assessment of no known exploitation.

Authentication Bypass Ubiquiti Unifi Protect Application
NVD
EPSS 0% CVSS 5.7
MEDIUM PATCH This Month

ICMP egress policy bypass in Docker Sandboxes (sbx) allows untrusted workloads - explicitly including AI agents - to defeat the documented ICMP block and reach arbitrary external hosts after a Docker daemon restart. The authorizer enforcing the ICMP egress restriction is applied only at network-creation time and is never re-applied when the daemon reconstructs network state from disk on restart, leaving the policy unenforced for the lifetime of the rebuilt network. No public exploit has been identified at time of analysis, but the bypass enables network reconnaissance and covert-channel data exfiltration directly contradicting the sbx threat model, which treats sandbox workloads as adversarial.

Information Disclosure Docker
NVD GitHub VulDB
EPSS 0% CVSS 1.3
LOW PATCH Monitor

Cookie scope escalation in aiohttp's CookieJar persistence layer causes host-only cookies to lose their host-restricted status after a save/load cycle, allowing them to be transmitted to subdomains that the original server never authorized to receive them. Applications using pip/aiohttp <= 3.14.0 that invoke CookieJar.save() and CookieJar.load() for session persistence are affected. No public exploit code has been identified at time of analysis, but the impact is information disclosure: sensitive cookies - including session tokens or authentication credentials - may be sent to unintended subdomain endpoints, violating the HTTP cookie scoping model.

Information Disclosure
NVD GitHub VulDB
EPSS 0% CVSS 5.6
MEDIUM This Month

Improper initialization in Intel UEFI firmware (Ring 0 / Bare Metal OS layer) enables information disclosure on some Intel platforms. A system software-level adversary already holding high privileges can exploit this flaw under high-complexity, prerequisite-dependent conditions to expose sensitive memory contents, with confidentiality impact rated high but no integrity or availability effect. No public exploit exists and EPSS sits at 0.01% (2nd percentile), and SSVC classifies exploitation status as none - signals that are mutually consistent and indicate this is a low-urgency finding for most organizations.

Intel Information Disclosure Intel Platforms
NVD
EPSS 0% CVSS 6.7
MEDIUM This Month

Improper BIOS initialization in certain ThinkPad models enables local privileged users to modify system data and execute arbitrary code with high integrity impact. The vulnerability requires elevated privileges and local access, posing a risk to organizations where administrative users may be compromised or untrusted. No patch is currently available.

NVD VulDB

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