CVE-2026-116574 FreeSWITCH: Off-by-one heap write in core XML serialization of four-byte UTF-8 sequences

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to 1.11.2, switchxmlampencode reserved only ten bytes for the widest numeric character reference produced fr...

CVE-2026-116574

FreeSWITCH versions prior to 1.11.2 are vulnerable to an off-by-one heap write due to a flaw in the switch_xml_ampencode() function. The software fails to reserve sufficient space for a terminating NUL character when handling the widest numeric character reference from a four-byte UTF-8 sequence....

UBUNTU-CVE-2026-121943

Irontec sngrep through 1.9.0 contains an out-of-bounds stack read vulnerability in sipcheckpacket and sipvalidatepacket caused by an off-by-one length check on 10240-byte SIP payloads. Remote attackers can send a crafted UDP or TCP SIP packet or supply a pcap file to crash sngrep or leak adjacent...

Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: forcedeth: fix off-by-one when saving/restoring non-PCI config space nvsuspend and nvresume walk the non-PCI configuration space using for i = 0; i registersize/sizeofu32; i++ which results in one extra iteration. savedconfigspac...

Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix off-by-one in TXF key sanitiser iwlmvmfrobtxfkeyiter tracks the last matched byte position in loop variable 'i'. When a full key match is found match == keylen, 'i' points at the last byte of the matched...

Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: lib/ucs2string.c: fix out-of-bounds read in ucs2strnlen Patch series “lib/ucs2string.c: fix out-of-bounds read in ucs2strnlen”, version 2. This series fixes an off-by-one out-of-bounds read in ucs2strnlen. The first patch is the...

tomcat: Apache Tomcat: Access control bypass due to off-by-one error in RewriteValve [N] flag processing

A flaw was found in Apache Tomcat. An off-by-one error in the RewriteValve's N flag processing causes rewrite rules to restart at the second rule instead of the first. This vulnerability may allow an attacker to bypass intended access controls...

OBO

OB1 Off-By-One Slides from OB1 Conferences Watch all the talks Year ↓| Slides| Youtube playlist ---|---|--- 2024| Slides for Day 1| Day 1 - OB1 2024 Online Presentations 2024| Slides for Day 2| Day 2 - OB1 2024 Online Presentations 2025| Slides for Day 1| Day 1 - OB1 2025 Online Presentations 202...

CVE-2006-3747

Files about my bugtraq publication and first working exploit for CVE-2006-3747 Apache modrewrite LDAP off-by-one buffer overflow. http://www.securityfocus.com/archive/1/443870 Public release date of POC/Exploit: 2006-08-20 Author: Jacobo Avariento Gimeno CVE id: CVE-2006-3747 Bugtraq id: 19204 CE...

PUB-A-511811378

In tipcdevprobe of tipcvirtiodev.c, there is a possible way to corrupt memory via an off-by-one cleanup loop on probe failure due to a logic error. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation...

PUB-A-511811210

In extmemobjgetpage of memss-mfw.c, there is a possible way to return an out of bounds physical address via an off-by-one check due to an incorrect bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitatio...

cve-2010-1938

🚀 CVE-2010-1938 FTP Off-by-One Exploit A simple Python script to test an off-by-one vulnerability in the OPIE library CVE-2010-1938. This vulnerability affects certain FTP servers and may allow for Denial of Service DoS or arbitrary code execution. 📜 Description This script targets a known...

Baron-Samedit-Heap-Buffer-Overflow-CVE-2021-3156

Baron-Samedit-Heap-Buffer-Overflow-CVE-2021-3156 Version Vulnarable To The Exploit The Baron Samedit vulnerability CVE-2021-3156 affects sudo legacy versions 1.8.2 through 1.8.31p2 and stable versions 1.9.0 through 1.9.5p1. This heap-based buffer overflow flaw was introduced in July 2011 via comm...

cve-2016-6187-poc

poc for https://duasynt.com/blog/cve-2016-6187-heap-off-by-one-exploit...

CLEANSTART-2024-DX89382 Off-by-one error in the exif_convert_utf16_to_utf8 function in exif-entry

Security vulnerability affects the libexif package. Off-by-one error in the exifconvertutf16toutf8 function in exif-entry...

cve-2021-3156

CVE-2021-3156 -- Baron Samedit Vulnerability Environment Create the image using Dockerfile docker build -t cve-2021-3156:ubuntu2004 . Create a container using the image docker run --rm -it cve-2021-3156:ubuntu2004 /bin/bash Vulnerability Cause In Sudo versions prior to 1.9.5p2 , there is an...

CVE-2022-3602

CVE−2022-3602 What is this? This document and repository is a write-up of CVE−2022-3602, a punycode buffer overflow issue in OpenSSL. It's an "anti-POC" the issue does not appear to exploitable intended for folks who maintain their own OpenSSL builds and for compiler maintainers. There is a...

CVE-2021-3156

CVE-2021-3156 - Heap-Based Buffer Overflow in Sudo ⚠️ For educational and authorized security research purposes only Original Exploit Authors Very grateful to the original PoC author Qualys Research Team Description Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based...

CVE-2023-40296

CVE-2023-40296 async-sockets-cpp through 0.3.1 contains an off-by-one buffer overflow vulnerability in static void ReceiveFromUDPSocket udpSocket at udpsocket.hpp, around lines 160-167. The buffer overflow affects all corresponding UDP servers. The remote buffer overflow can be triggered by...

CLEANSTART-2024-SZ97187 GIMP PSP File Parsing Off-By-One Remote Code Execution Vulnerability

Security vulnerability affects the gimp package. GIMP PSP File Parsing Off-By-One Remote Code Execution Vulnerability...