CISA Adds Five Known Exploited Vulnerabilities to Catalog

Updated October 22, 2025 CISA is continually collaborating with partners across government and the private sector. Through this collaboration, CISA has determined that CVE-2025-6264 has not been exploited and there is insufficient evidence to keep this CVE on the KEV and that the best course of...

afs: Fix potential null pointer dereference in afs_put_server

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CVE-2025-60336

A NULL pointer dereference in the sub41773C function of TOTOLINK N600R v4.3.0cu.7866B20220506 allows attackers to cause a Denial of Service DoS via a crafted HTTP request...

D-Link DIR-823G 安全漏洞

The D-Link DIR-823G is a wireless router from China's AUO D-Link. A security vulnerability exists in D-Link DIR-823G A1 v1.0.2B05, which originates from a null pointer dereference in the SetWLanRadioSettings function. An attacker can exploit this vulnerability to cause a DoS...

TOTOLINK N600R 安全漏洞

TOTOLINK N600R is a dual-band wireless router launched by Korean brand TOTOLINK in 2013, which supports 2.4GHz and 5GHz dual-band concurrency with a maximum wireless transmission rate of 300Mbps. The TOTOLINK N600R suffers from a null pointer dereference vulnerability, which stems from the presen...

CVE-2025-60332

A NULL pointer dereference in the SetWLanRadioSettings function of D-Link DIR-823G A1 v1.0.2B05 allows attackers to cause a Denial of Service DoS via a crafted HTTP request...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from an unchecked kzalloc return value that could lead to a null pointer dereference...

PT-2025-43331

Name of the Vulnerable Software and Affected Versions D-Link DIR-823G A1 version 1.0.2B05 Description A flaw exists in the SetWLanRadioSettings function that can lead to a Denial of Service DoS. This occurs due to a NULL pointer dereference triggered by a specially crafted HTTP request...

CVE-2025-60336

TOTOLINK N600R affected by a NULL pointer dereference in the sub_41773C function of firmware version 4.3.0cu.7866_B20220506, leading to Denial of Service via a crafted HTTP request. The CVE describes the vulnerability without specifying a fixed version; several sources corroborate a DoS impact, b...

CVE-2025-60336

A NULL pointer dereference in the sub41773C function of TOTOLINK N600R v4.3.0cu.7866B20220506 allows attackers to cause a Denial of Service DoS via a crafted HTTP request...

ffmpeg 安全漏洞

ffmpeg is a rust library by meh.individual developer. A security vulnerability exists in ffmpeg, which stems from the Firequalizer Filter may be forced to dereference null pointers, potentially resulting in a denial of service...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from unconditionally disabling sdma ecc irq during a hang cycle, which could lead to null pointer dereferencing...

CVE-2025-60335

A NULL pointer dereference in the main function of TOTOLINK N600R v4.3.0cu.7866B20220506 allows attackers to cause a Denial of Service DoS via a crafted HTTP request...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from an improper return error code when the ACPI SAR table is not implemented correctly, which could result in a...

CVE-2025-60335

A NULL pointer dereference in the main function of TOTOLINK N600R v4.3.0cu.7866B20220506 allows attackers to cause a Denial of Service DoS via a crafted HTTP request...

PT-2025-43376

Name of the Vulnerable Software and Affected Versions TOTOLINK N600R version 4.3.0cu.7866 B20220506 Description A NULL pointer dereference exists in the main function of the software. This allows attackers to cause a Denial of Service DoS by sending a crafted HTTP request. Recommendations Update ...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from an unchecked drmmmodeconfiginit return value that could lead to a null pointer dereference...

CVE-2022-4981

A vulnerability was detected in DCMTK up to 3.6.7. The impacted element is the function DcmQueryRetrieveConfig::readPeerList of the file /dcmqrcnf.cc of the component dcmqrscp. The manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit is now publ...

DEBIAN-CVE-2022-4981

A vulnerability was detected in DCMTK up to 3.6.7. The impacted element is the function DcmQueryRetrieveConfig::readPeerList of the file /dcmqrcnf.cc of the component dcmqrscp. The manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit is now publ...

USN-7830-1: FFmpeg vulnerabilities

It was discovered that FFmpeg incorrectly handled the return values of functions in its Firequalizer filter and in the HTTP Live Streaming HLS implementation, leading to a NULL pointer dereference. If a user was tricked into loading a crafted media file, a remote attacker could possibly use this...