CWE-124

Buffer Underwrite ('Buffer Underflow')

13 CVEs Avg CVSS 6.4 MITRE
0
CRITICAL
4
HIGH
7
MEDIUM
1
LOW
2
POC
0
KEV

Monthly

CVE-2026-0966 MEDIUM PATCH This Month

Improper handling of zero-length input in the libssh ssh_get_hexa() function enables remote denial of service against SSH daemons with GSSAPI authentication enabled and packet-level logging active (SSH_LOG_PACKET or higher verbosity). Unauthenticated remote attackers can trigger a per-connection daemon process crash by sending specially crafted GSSAPI authentication packets containing malformed OID data, affecting Red Hat Enterprise Linux versions 6 through 10 and OpenShift Container Platform 4. CVSS 6.5 (network-accessible, low complexity, partial integrity and availability impact); no public exploit code or active exploitation confirmed at time of analysis.

Information Disclosure
NVD
CVSS 3.0
6.5
EPSS
0.1%
CVE-2026-20104 MEDIUM This Month

This vulnerability in Cisco IOS XE Software bootloader affects Catalyst 9200, ESS9300, IE9310/9320, and IE3500/3505 series switches, allowing authenticated local attackers with level-15 privileges or unauthenticated attackers with physical access to execute arbitrary code at boot time and bypass the chain of trust. An attacker can manipulate loaded binaries to circumvent integrity checks during boot, enabling execution of non-Cisco-signed images. While the CVSS score is 6.1 (Medium), Cisco assigned it a High Security Impact Rating due to the critical nature of breaking the secure boot mechanism, a foundational security control.

Cisco RCE Apple
NVD VulDB
CVSS 3.1
6.1
EPSS
0.0%
CVE-2026-28419 MEDIUM PATCH This Month

Vim versions prior to 9.2.0075 contain a heap buffer underflow in the tags file parser that triggers when processing malformed tag files with delimiters at line starts, potentially allowing local attackers with user interaction to read out-of-bounds memory and cause information disclosure or crashes. The vulnerability requires local file system access and user interaction to exploit, with a CVSS score of 5.3 indicating medium severity. A patch is available in Vim 9.2.0075 and later versions.

Heap Overflow Vim Redhat Suse
NVD GitHub VulDB
CVSS 3.1
5.3
EPSS
0.0%
CVE-2024-36310 Monitor

Improper input validation in the SMM communications buffer could allow a privileged attacker to perform an out of bounds read or write to SMRAM potentially resulting in loss of confidentiality or integrity.

Buffer Overflow
NVD
EPSS
0.0%
CVE-2026-1485 LOW Monitor

A flaw was found in Glib's content type parsing logic. This buffer underflow vulnerability occurs because the length of a header line is stored in a signed integer, which can lead to integer wraparound for very large inputs. [CVSS 2.8 LOW]

Denial Of Service
NVD VulDB
CVSS 3.1
2.8
EPSS
0.0%
CVE-2025-61915 MEDIUM POC PATCH This Month

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Rated medium severity (CVSS 6.0), this vulnerability is low attack complexity. Public exploit code available.

Information Disclosure Cups Redhat Suse
NVD GitHub
CVSS 3.1
6.0
EPSS
0.0%
CVE-2025-61690 HIGH This Week

CVE-2025-61690 is a security vulnerability (CVSS 7.8). High severity vulnerability requiring prompt remediation.

RCE
NVD
CVSS 3.1
7.8
EPSS
0.0%
CVE-2025-53101 HIGH POC PATCH This Week

A remote code execution vulnerability in versions (CVSS 7.4). Risk factors: public PoC available. Vendor patch is available.

Buffer Overflow Imagemagick Redhat Suse
NVD GitHub
CVSS 3.1
7.4
EPSS
0.1%
CVE-2025-20695 MEDIUM This Month

In Bluetooth FW, there is a possible system crash due to an uncaught exception. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS09741871; Issue ID: MSV-3317.

Denial Of Service Software Development Kit Android Openwrt Google
NVD
CVSS 3.1
6.5
EPSS
0.0%
CVE-2025-20694 MEDIUM This Month

In Bluetooth FW, there is a possible system crash due to an uncaught exception. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS09752821; Issue ID: MSV-3342.

Denial Of Service Software Development Kit Android Openwrt Google
NVD
CVSS 3.1
6.5
EPSS
0.0%
CVE-2026-0966
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

Improper handling of zero-length input in the libssh ssh_get_hexa() function enables remote denial of service against SSH daemons with GSSAPI authentication enabled and packet-level logging active (SSH_LOG_PACKET or higher verbosity). Unauthenticated remote attackers can trigger a per-connection daemon process crash by sending specially crafted GSSAPI authentication packets containing malformed OID data, affecting Red Hat Enterprise Linux versions 6 through 10 and OpenShift Container Platform 4. CVSS 6.5 (network-accessible, low complexity, partial integrity and availability impact); no public exploit code or active exploitation confirmed at time of analysis.

Information Disclosure
NVD
CVE-2026-20104
EPSS 0% CVSS 6.1
MEDIUM This Month

This vulnerability in Cisco IOS XE Software bootloader affects Catalyst 9200, ESS9300, IE9310/9320, and IE3500/3505 series switches, allowing authenticated local attackers with level-15 privileges or unauthenticated attackers with physical access to execute arbitrary code at boot time and bypass the chain of trust. An attacker can manipulate loaded binaries to circumvent integrity checks during boot, enabling execution of non-Cisco-signed images. While the CVSS score is 6.1 (Medium), Cisco assigned it a High Security Impact Rating due to the critical nature of breaking the secure boot mechanism, a foundational security control.

Cisco RCE Apple
NVD VulDB
CVE-2026-28419
EPSS 0% CVSS 5.3
MEDIUM PATCH This Month

Vim versions prior to 9.2.0075 contain a heap buffer underflow in the tags file parser that triggers when processing malformed tag files with delimiters at line starts, potentially allowing local attackers with user interaction to read out-of-bounds memory and cause information disclosure or crashes. The vulnerability requires local file system access and user interaction to exploit, with a CVSS score of 5.3 indicating medium severity. A patch is available in Vim 9.2.0075 and later versions.

Heap Overflow Vim Redhat +1
NVD GitHub VulDB
CVE-2024-36310
EPSS 0%
Monitor

Improper input validation in the SMM communications buffer could allow a privileged attacker to perform an out of bounds read or write to SMRAM potentially resulting in loss of confidentiality or integrity.

Buffer Overflow
NVD
CVE-2026-1485
EPSS 0% CVSS 2.8
LOW Monitor

A flaw was found in Glib's content type parsing logic. This buffer underflow vulnerability occurs because the length of a header line is stored in a signed integer, which can lead to integer wraparound for very large inputs. [CVSS 2.8 LOW]

Denial Of Service
NVD VulDB
CVE-2025-61915
EPSS 0% CVSS 6.0
MEDIUM POC PATCH This Month

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Rated medium severity (CVSS 6.0), this vulnerability is low attack complexity. Public exploit code available.

Information Disclosure Cups Redhat +1
NVD GitHub
CVE-2025-61690
EPSS 0% CVSS 7.8
HIGH This Week

CVE-2025-61690 is a security vulnerability (CVSS 7.8). High severity vulnerability requiring prompt remediation.

RCE
NVD
CVE-2025-53101
EPSS 0% CVSS 7.4
HIGH POC PATCH This Week

A remote code execution vulnerability in versions (CVSS 7.4). Risk factors: public PoC available. Vendor patch is available.

Buffer Overflow Imagemagick Redhat +1
NVD GitHub
CVE-2025-20695
EPSS 0% CVSS 6.5
MEDIUM This Month

In Bluetooth FW, there is a possible system crash due to an uncaught exception. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS09741871; Issue ID: MSV-3317.

Denial Of Service Software Development Kit Android +2
NVD
CVE-2025-20694
EPSS 0% CVSS 6.5
MEDIUM This Month

In Bluetooth FW, there is a possible system crash due to an uncaught exception. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS09752821; Issue ID: MSV-3342.

Denial Of Service Software Development Kit Android +2
NVD

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