Buffer Overflow
A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.
How It Works
A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions. This overwrites whatever data or code exists there, corrupting program state and potentially giving attackers control over execution flow.
Stack-based overflows are the most common variant. When a function allocates a fixed-size buffer on the stack and then copies user-controlled input without proper bounds checking, attackers can overflow past the buffer to overwrite the function's return address. When the function completes, instead of returning to legitimate code, execution jumps to attacker-specified memory containing malicious shellcode. Heap-based overflows work differently—they corrupt heap metadata like chunk size fields or free list pointers, leading to arbitrary memory writes when the allocator processes the corrupted structures.
Modern exploitation bypasses defensive mechanisms through techniques like Return-Oriented Programming (ROP), which chains together existing code snippets to avoid non-executable memory protections. Attackers may also use heap spraying to reliably position shellcode at predictable addresses, defeating address randomization.
Impact
- Remote code execution — attacker gains ability to run arbitrary commands with the privileges of the vulnerable process
- Privilege escalation — exploiting kernel or setuid program overflows to gain root/SYSTEM access
- Denial of service — crashes and memory corruption that render systems unusable
- Information disclosure — reading sensitive data from adjacent memory regions that should be inaccessible
- Authentication bypass — overwriting security-critical variables like permission flags or user IDs
Real-World Examples
Fortinet FortiOS suffered a critical buffer overflow (CVE-2025-32756) that allowed unauthenticated remote attackers to execute code as root on firewalls and VPN gateways. Attackers actively exploited this to compromise enterprise network perimeters before patches were available.
The Slammer worm from 2003 exploited a stack overflow in Microsoft SQL Server, spreading to 75,000 hosts in ten minutes by sending a single malformed UDP packet that overwrote the return address with shellcode. No authentication was required.
OpenSSH historically contained a heap overflow in challenge-response authentication that allowed pre-authentication remote root compromise on Unix systems, demonstrating how memory corruption in privileged network services creates maximum impact scenarios.
Mitigation
- Memory-safe languages — Rust, Go, and modern managed languages prevent buffer overflows by design through automatic bounds checking
- Stack canaries — random values placed before return addresses that detect corruption before control transfer
- Address Space Layout Randomization (ASLR) — randomizes memory locations making exploitation less reliable
- Data Execution Prevention (DEP/NX) — marks memory regions as non-executable, preventing direct shellcode execution
- Bounds checking — validate input sizes before copying, use safe functions like
strncpyinstead ofstrcpy - Fuzzing and static analysis — automated testing to discover overflows before deployment
Recent CVEs (36785)
WebKit, as used in JavaScriptCore in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in JavaScriptCore in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in JavaScriptCore in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iTunes before 12.3, allows man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via vectors related to. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in JavaScriptCore in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iTunes before 12.3, allows man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via vectors related to. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iTunes before 12.3, allows man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via vectors related to. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in JavaScriptCore in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in JavaScriptCore in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
WebKit, as used in Apple iOS before 9 and iTunes before 12.3, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
The __sflush function in fflush.c in stdio in libc in FreeBSD 10.1 and the kernel in Apple iOS before 9 mishandles failures of the write system call, which allows context-dependent attackers to. Rated medium severity (CVSS 6.9). No vendor patch available.
Stack-based buffer overflow in the ASUS TM-AC1900 router allows remote attackers to execute arbitrary code via crafted HTTP header values. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. No vendor patch available.
Heap-based buffer overflow in the Microsoft Word document conversion feature in Corel WordPerfect allows remote attackers to execute arbitrary code via a crafted document. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
Multiple stack-based buffer overflows in the Reprise License Manager service in Borland AccuRev allow remote attackers to execute arbitrary code via the (1) akey or (2) actserver parameter to the. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Public exploit code available and EPSS exploitation probability 37.1%.
Stack-based buffer overflow in the Administration Server in IBM HTTP Server 6.1.0.x through 6.1.0.47, 7.0.0.x before 7.0.0.39, 8.0.0.x before 8.0.0.12, and 8.5.x before 8.5.5.7, as used in WebSphere. Rated critical severity (CVSS 9.0), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Cisco Web Security Appliance (WSA) 8.0.7 allows remote HTTP servers to cause a denial of service (memory consumption from stale TCP connections) via crafted responses, aka Bug ID CSCuw10426. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. No vendor patch available.
Multiple stack-based buffer overflows in Yahoo!. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.
Multiple stack-based buffer overflows in unspecified DLL files in Advantech WebAccess before 8.0.1 allow remote attackers to execute arbitrary code via unknown vectors. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 22.3%.
Adobe Shockwave Player before 12.2.0.162 allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, low attack complexity. This Buffer Overflow vulnerability could allow attackers to corrupt memory to execute arbitrary code or crash the application.
Adobe Shockwave Player before 12.2.0.162 allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, low attack complexity. Epss exploitation probability 18.3%.
The kernel-mode driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. Actively exploited in the wild (cisa kev) and EPSS exploitation probability 39.8%.
Microsoft Internet Explorer 10 and 11 and Microsoft Edge allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 14.8% and no vendor patch available.
Microsoft Internet Explorer 9 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory Corruption. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 14.8% and no vendor patch available.
Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel 2013 SP1, Excel 2013 RT SP1, Excel for Mac 2011 and 2016, Office Compatibility Pack SP3, and Excel Viewer allow remote attackers to execute arbitrary. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Public exploit code available and EPSS exploitation probability 74.0%.
Microsoft Excel 2007 SP3, Excel 2010 SP2, Office Compatibility Pack SP3, and Excel Viewer allow remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Office Memory. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Public exploit code available and EPSS exploitation probability 69.2%.
Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel for Mac 2011 and 2016, Office Compatibility Pack SP3, and Excel Viewer allow remote attackers to execute arbitrary code via a crafted Office document,. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Public exploit code available and EPSS exploitation probability 69.2%.
The kernel-mode driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows. Rated medium severity (CVSS 6.9). Public exploit code available.
The kernel-mode driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows. Rated medium severity (CVSS 6.9). Public exploit code available.
The kernel-mode driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows. Rated medium severity (CVSS 6.9). Public exploit code available.
Buffer overflow in the Adobe Type Manager Library in Microsoft Windows Vista SP2, Windows Server 2008 SP2, Office 2007 SP3, Office 2010 SP2, Lync 2010, Lync 2010 Attendee, Lync 2013 SP1, Lync Basic. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Public exploit code available and EPSS exploitation probability 70.6%.
Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, 4.5.2, and 4.6 improperly counts objects before performing an array copy, which allows remote attackers to (1) execute arbitrary code via. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 31.8% and no vendor patch available.
Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory Corruption Vulnerability.". Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 14.8% and no vendor patch available.
Microsoft Internet Explorer 7 and 8 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory Corruption Vulnerability.". Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 14.8% and no vendor patch available.
Microsoft Internet Explorer 7 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory Corruption. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 12.7% and no vendor patch available.
Microsoft Internet Explorer 7 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory Corruption. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 12.7% and no vendor patch available.
Microsoft Internet Explorer 7 through 11 and Microsoft Edge allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 14.8% and no vendor patch available.
The (1) VBScript and (2) JScript engines in Microsoft Internet Explorer 8 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 20.8% and no vendor patch available.
Microsoft Internet Explorer 7 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory Corruption. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 20.8% and no vendor patch available.
Microsoft Internet Explorer 9 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory Corruption. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 20.8% and no vendor patch available.
Microsoft Internet Explorer 7 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory Corruption. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 20.8% and no vendor patch available.
Microsoft Internet Explorer 7 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory Corruption. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 20.8% and no vendor patch available.
Microsoft Internet Explorer 7 through 11 and Microsoft Edge allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 14.8% and no vendor patch available.
Microsoft Internet Explorer 9 through 11 and Microsoft Edge allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable. Epss exploitation probability 14.8% and no vendor patch available.
Race condition in the worker_update_monitors_config function in SPICE 0.12.4 allows a remote authenticated guest user to cause a denial of service (heap-based memory corruption and QEMU-KVM crash) or. Rated medium severity (CVSS 6.9). No vendor patch available.
Buffer overflow in the ExecCall method in c2lv6.ocx in the FreeBit ELPhoneBtnV6 ActiveX control allows remote attackers to execute arbitrary code via a crafted HTML document, related to the. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
The ff_sbr_apply function in libavcodec/aacsbr.c in FFmpeg before 2.7.2 does not check for a matching AAC frame syntax element before proceeding with Spectral Band Replication calculations, which. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Buffer overflow in NScripter before 3.00 allows remote attackers to execute arbitrary code via crafted save data. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable.
Double free vulnerability in the opj_j2k_copy_default_tcp_and_create_tcd function in j2k.c in OpenJPEG before r3002, as used in PDFium in Google Chrome before 45.0.2454.85, allows remote attackers to. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
The IPv4 implementation on Cisco ASR 1000 devices with software 15.5(3)S allows remote attackers to cause a denial of service (ESP QFP CPU consumption) by triggering packet fragmentation and. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
The vlserver in OpenAFS before 1.6.13 allows remote authenticated users to cause a denial of service (out-of-bounds read and crash) via a crafted regular expression in a VL_ListAttributesN2 RPC. Rated medium severity (CVSS 4.0), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Array index error in the tcm_vhost_make_tpg function in drivers/vhost/scsi.c in the Linux kernel before 4.0 might allow guest OS users to cause a denial of service (memory corruption) or possibly. Rated high severity (CVSS 7.2), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
Buffer overflow in Ricoh DL FTP Server 1.1.0.6 and earlier allows remote attackers to execute arbitrary code via a long USER command. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
The pit_ioport_read in i8254.c in the Linux kernel before 2.6.33 and QEMU before 2.3.1 does not distinguish between read lengths and write lengths, which might allow guest OS users to execute. Rated medium severity (CVSS 6.9). Public exploit code available.
Memory leak in the __key_link_end function in security/keys/keyring.c in the Linux kernel before 4.1.4 allows local users to cause a denial of service (memory consumption) via many add_key system. Rated medium severity (CVSS 4.9), this vulnerability is low attack complexity. No vendor patch available.
The UDF filesystem implementation in the Linux kernel before 3.18.2 does not validate certain lengths, which allows local users to cause a denial of service (buffer over-read and system crash) via a. Rated medium severity (CVSS 4.9), this vulnerability is low attack complexity. No vendor patch available.
Buffer overflow in the HTTP administrative interface in TIBCO Rendezvous before 8.4.4, Rendezvous Network Server before 1.1.1, Substation ES before 2.9.0, and Messaging Appliance before 8.7.2 allows. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Stack-based buffer overflow in GSM SIM Utility (aka SIM Card Editor) 6.6 allows remote attackers to execute arbitrary code via a long entry in a .sms file. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 76.9%.
Buffer overflow in CHICKEN 4.9.0.x before 4.9.0.2, 4.9.x before 4.9.1, and before 5.0 allows attackers to have unspecified impact via a positive START argument to the "substring-index[-ci]. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
The HP lt4112 LTE/HSPA+ Gobi 4G module with firmware before 12.500.00.15.1803 on EliteBook, ElitePad, Elite, ProBook, Spectre, ZBook, and mt41 Thin Client devices allows remote attackers to modify. Rated high severity (CVSS 7.8), this vulnerability is remotely exploitable. No vendor patch available.
Buffer overflow in HP Version Control Repository Manager (VCRM) before 7.5.0 allows remote authenticated users to modify data or cause a denial of service via unspecified vectors. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
VideoLAN VLC media player 2.2.1 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted 3GP file, which triggers the freeing of arbitrary. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.
Apple QuickTime before 7.7.8 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted file, a different vulnerability. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. This Buffer Overflow vulnerability could allow attackers to corrupt memory to execute arbitrary code or crash the application.
Apple QuickTime before 7.7.8 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted file, a different vulnerability. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. This Buffer Overflow vulnerability could allow attackers to corrupt memory to execute arbitrary code or crash the application.
Multiple integer overflows in the evbuffer API in Libevent 2.0.x before 2.0.22 and 2.1.x before 2.1.5-beta allow context-dependent attackers to cause a denial of service or possibly have other. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Multiple integer overflows in the evbuffer API in Libevent 1.4.x before 1.4.15, 2.0.x before 2.0.22, and 2.1.x before 2.1.5-beta allow context-dependent attackers to cause a denial of service or. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Integer underflow in the base64-decoding implementation in EMC RSA BSAFE Micro Edition Suite (MES) 4.0.x before 4.0.8 and 4.1.x before 4.1.3, RSA BSAFE Crypto-C Micro Edition (Crypto-C ME) before. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.