rrdtool: rrdtool: Stack buffer overflow allows local code execution or denial of service

A flaw was found in rrdcached, a component of rrdtool. A local attacker with access to a rrdcached socket can exploit a stack-based buffer overflow by sending an oversized CREATE request. This vulnerability can lead to a denial of service by crashing the daemon or potentially allow for arbitrary...

CVE-2026-7831

UltraVNC viewer through 1.8.2.2 contains an off-by-one stack buffer overflow in the RFB ServerInit message handler. In vncviewer/ClientConnection.cpp, when the server-supplied nameLength equals exactly 2024 the code declares a 2024-byte stack buffer dn2024 and calls ReadStringdn, 2024. ReadString...

rrdtool security update

1.7.2-22 - Fixed stack buffer overflow in rrdcached and added more security checks Resolves: RHEL-173257...

CVE-2026-7831: Off-by-one Error

UltraVNC viewer through 1.8.2.2 contains an off-by-one stack buffer overflow in the RFB ServerInit message handler. In vncviewer/ClientConnection.cpp, when the server-supplied nameLength equals exactly 2024 the code declares a 2024-byte stack buffer dn2024 and calls ReadStringdn, 2024. ReadString...

CVE-2026-54592: Out-of-bounds Read

Oj Optimized JSON is a JSON parser and Object marshaller packaged as a Ruby gem. In versions prior to 3.17.3, Oj::Doceachchild, when invoked recursively over a deeply nested JSON document, overflows a fixed-size stack buffer and aborts the process, leading to DoS. In a two-step chain in...

AlmaLinux 8 : rrdtool (ALSA-2026:34155)

The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:34155 advisory. rrdtool: Stack buffer overflow in rrdcached handlerequestcreate allows local privilege escalation via unbounded DS/RRA arguments CVE-2026-43958 Tenable has...

ALSA-2026:34155 Moderate: rrdtool security update

The round robin database RRD system stores and displays time-series data, such as network bandwidth, machine-room temperature, and server load average. RRDtool is a high performance data logging and graphing utility, which can be easily integrated with shell scripts, or used to create application...

CVE-2026-54592

Oj Optimized JSON is a JSON parser and Object marshaller packaged as a Ruby gem. In versions prior to 3.17.3, Oj::Doceachchild, when invoked recursively over a deeply nested JSON document, overflows a fixed-size stack buffer and aborts the process, leading to DoS. In a two-step chain in...

stack-buffer-overflow-lab

Stack Buffer Overflow Lab Overview This project demonstrat...

libyal:libluksde_volume_fuzzer: Stack-buffer-overflow in libluksde_password_pbkdf2

Detailed Report: https://oss-fuzz.com/testcase?key=5513603281911808 Project: libyal Fuzzing Engine: libFuzzer Fuzz Target: libluksdevolumefuzzer Job Type: libfuzzerasani386libyal Platform Id: linux Crash Type: Stack-buffer-overflow WRITE Crash Address: 0xf66f0070 Crash State:...

postgresql: PostgreSQL: Arbitrary code execution vulnerability in 'refint' module

A flaw was found in PostgreSQL. A stack buffer overflow in the 'refint' module allows an unprivileged database user to execute arbitrary code as the operating system user running the database. Additionally, a separate vulnerability exists where, if an application uses a user-controlled column as ...

Tenda jd12l stack buffer overflow vulnerability (CNVD-2026-32968)

The Tenda jd12l is a multi-antenna wireless router designed for home users. The Tenda jd12l has a stack buffer overflow vulnerability. This vulnerability stems from the fromNatStaticSetting function in the goform/NatStaticSetting file, which fails to properly validate the page parameter. Attacker...

CVE-2026-11979

libxml2 is vulnerable to multiple stack-based buffer overflows in the xmlcatalog utility when running in --shell mode. The usershell function processes user input using fixed-size stack buffers without proper bounds checking. By supplying an overly long input line, an attacker can overflow intern...

SUSE-SU-2026:2678-1 Security update for opensc

This update for opensc fixes the following issues - CVE-2025-49010: stack-buffer-overflow via crafted smart card or USB device responses bsc1261214. - CVE-2025-66215: crafted smart card or USB device can cause a stack-buffer-overflow write bsc1261220. - CVE-2026-10275: global buffer overflow duri...

Tenda jd12l stack buffer overflow vulnerability (CNVD-2026-32969)

The Tenda jd12l is a multi-antenna wireless router designed for home users. The Tenda jd12l has a stack buffer overflow vulnerability, which stems from the improper handling of the parameter shareSpeed in the fromSetWifiGusetBasic function within the /goform/WifiGuestSet file. Attackers can explo...

AlmaLinux 9 : tigervnc (ALSA-2026:29844)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:29844 advisory. xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libXfont2 name length mismatch...

Tenda jd12l stack buffer overflow vulnerability (CNVD-2026-32970)

The Tenda jd12l is a multi-antenna wireless router designed for home users. The Tenda jd12l has a stack buffer overflow vulnerability, which stems from the improper handling of the formSetPPTPServer function in the /goform/SetPptpServerCfg file. Attackers can exploit this vulnerability to launch...

CLSA-2026-1782484404 xorg-x11-server-Xwayland: Fix of 8 CVEs

CVE-2026-50256: increase XLFDMAXFONTNAMELEN and add bounds checks in doListFontsAndAliases/doListFontsWithInfo to prevent stack buffer overflow via long fonts.alias targets - CVE-2026-50257: fix use-after-free in miSyncDestroyFence by using safe list iteration and null-checking pTrigger before...

CVE-2026-56766

Hydra through 9.7, fixed in commit 9cc84c2, contains a stack buffer overflow in NTLM authentication across SMTP, POP3, IMAP, NNTP, HTTP, HTTP-Proxy, and HTTP-Proxy-Urlenum modules when processing malicious NTLM Type-2 challenges. A malicious server can send a crafted NTLM Type-2 challenge with an...

ALPINE-CVE-2026-55892

Vim is an open source, command line text editor. Prior to 9.2.0662, the dumpprefixes function in src/spell.c walks a spell-file prefix trie iteratively with a depth counter while dumping the prefixes that apply to a word. The counter is bounded only by the trie structure itself; it is never check...