Common Weakness Enumeration
CWE-787
Allowed-with-ReviewOut-of-bounds Write
Abstraction: Base · Status: Draft
The product writes data past the end, or before the beginning, of the intended buffer.
15185 vulnerabilities reference this CWE, most recent first.
CVE-2019-3863 (GCVE-0-2019-3863)
Vulnerability from cvelistv5 – Published: 2019-03-25 17:52 – Updated: 2025-12-19 03:02
VLAI
EPSS
VEX
Summary
A flaw was found in libssh2 before 1.8.1 creating a vulnerability on the SSH client side. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used by the SSH client as an index to copy memory causing in an out of bounds memory write error.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
16 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The libssh2 Project | libssh2 |
Affected:
1.8.1
|
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CVE-2019-3857 (GCVE-0-2019-3857)
Vulnerability from cvelistv5 – Published: 2019-03-25 18:30 – Updated: 2025-04-23 19:48
VLAI
EPSS
VEX
Summary
An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit signal are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
16 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The libssh2 Project | libssh2 |
Affected:
1.8.1
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CVE-2019-3856 (GCVE-0-2019-3856)
Vulnerability from cvelistv5 – Published: 2019-03-25 18:31 – Updated: 2025-04-23 19:48
VLAI
EPSS
VEX
Summary
An integer overflow flaw, which could lead to an out of bounds write, was discovered in libssh2 before 1.8.1 in the way keyboard prompt requests are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
16 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The libssh2 Project | libssh2 |
Affected:
1.8.1
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CVE-2019-3855 (GCVE-0-2019-3855)
Vulnerability from cvelistv5 – Published: 2019-03-21 20:13 – Updated: 2025-12-17 21:40
VLAI
EPSS
VEX
Summary
An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
27 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The libssh2 Project | libssh2 |
Affected:
1.8.1
|
Date Public
2019-03-13 00:00
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CVE-2019-1887 (GCVE-0-2019-1887)
Vulnerability from cvelistv5 – Published: 2019-07-06 01:15 – Updated: 2024-11-19 19:03
VLAI
EPSS
VEX
Title
Cisco Unified Communications Manager Session Initiation Protocol Denial of Service Vulnerability
Summary
A vulnerability in the Session Initiation Protocol (SIP) protocol implementation of Cisco Unified Communications Manager could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient validation of input SIP traffic. An attacker could exploit this vulnerability by sending a malformed SIP packet to an affected Cisco Unified Communications Manager. A successful exploit could allow the attacker to trigger a new registration process on all connected phones, temporarily disrupting service.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Unified Communications Manager |
Affected:
unspecified , < 12.0(1)SU3
(custom)
|
Date Public
2019-07-03 00:00
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CVE-2018-25271 (GCVE-0-2018-25271)
Vulnerability from cvelistv5 – Published: 2026-04-22 14:57 – Updated: 2026-04-22 15:40
VLAI
EPSS
VEX
Title
Textpad 8.1.2 Denial of Service via Run Command
Summary
Textpad 8.1.2 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long buffer string through the Run command interface. Attackers can paste a 5000-byte payload into the Command field via Tools > Run to trigger a buffer overflow that crashes the application.
Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/45956 | exploit |
| https://textpad.com | product |
| https://www.textpad.com/download/v81/win32/txpeng… | product |
| https://www.vulncheck.com/advisories/textpad-deni… | third-party-advisory |
Date Public
2018-12-09 00:00
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CVE-2018-25268 (GCVE-0-2018-25268)
Vulnerability from cvelistv5 – Published: 2026-04-22 14:57 – Updated: 2026-04-22 15:41
VLAI
EPSS
VEX
Title
LanSpy 2.0.1.159 Local Buffer Overflow via Scan Field
Summary
LanSpy 2.0.1.159 contains a local buffer overflow vulnerability that allows attackers to overwrite the instruction pointer by supplying oversized input to the scan field. Attackers can craft a payload with 688 bytes of padding followed by 4 bytes of controlled data to crash the application or potentially achieve code execution.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/45968 | exploit |
| https://lizardsystems.com | product |
| https://www.vulncheck.com/advisories/lanspy-local… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Lizardsystems | LanSpy |
Affected:
2.0.1.159
|
Date Public
2018-12-11 00:00
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CVE-2018-25267 (GCVE-0-2018-25267)
Vulnerability from cvelistv5 – Published: 2026-04-22 14:57 – Updated: 2026-04-23 14:07
VLAI
EPSS
VEX
Title
UltraISO 9.7.1.3519 Buffer Overflow via Output FileName
Summary
UltraISO 9.7.1.3519 contains a local buffer overflow vulnerability in the Output FileName field of the Make CD/DVD Image dialog that allows attackers to overwrite SEH and SE handler records. Attackers can craft a malicious filename string with 304 bytes of data followed by SEH record overwrite values and paste it into the Output FileName field to trigger a denial of service crash.
Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/45996 | exploit |
| https://www.ultraiso.com/ | product |
| https://www.vulncheck.com/advisories/ultraiso-buf… | third-party-advisory |
Date Public
2018-12-14 00:00
Credits
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CVE-2018-25266 (GCVE-0-2018-25266)
Vulnerability from cvelistv5 – Published: 2026-04-22 14:57 – Updated: 2026-04-22 18:31
VLAI
EPSS
VEX
Title
Angry IP Scanner 3.5.3 Denial of Service via Preferences Buffer Overflow
Summary
Angry IP Scanner 3.5.3 contains a buffer overflow vulnerability in the preferences dialog that allows local attackers to crash the application by supplying an excessively large string. Attackers can generate a file containing a massive buffer of repeated characters and paste it into the unavailable value field in the display preferences to trigger a denial of service.
Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/45993 | exploit |
| https://angryip.org | product |
| https://www.vulncheck.com/advisories/angry-ip-sca… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Angryip | Angry IP Scanner |
Affected:
3.11
|
Date Public
2018-12-14 00:00
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CVE-2018-25265 (GCVE-0-2018-25265)
Vulnerability from cvelistv5 – Published: 2026-04-22 14:57 – Updated: 2026-05-14 02:06
VLAI
EPSS
VEX
Title
LanSpy 2.0.1.159 Local Buffer Overflow
Summary
LanSpy 2.0.1.159 contains a local buffer overflow vulnerability in the scan section that allows local attackers to execute arbitrary code by exploiting structured exception handling mechanisms. Attackers can craft malicious payloads using egghunter techniques to locate and execute shellcode, triggering code execution through SEH chain manipulation and controlled jumps.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/46018 | exploit |
| https://lizardsystems.com | product |
| https://www.vulncheck.com/advisories/lanspy-local… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Lizardsystems | LanSpy |
Affected:
2.0.1.159
(custom)
|
Date Public
2018-12-20 00:00
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Mitigation MIT-3
Requirements
Strategy: Language Selection
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow protection, but the protection can be disabled by the programmer.
- Be wary that a language's interface to native code may still be subject to overflows, even if the language itself is theoretically safe.
Mitigation MIT-4.1
Architecture and Design
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- Examples include the Safe C String Library (SafeStr) by Messier and Viega [REF-57], and the Strsafe.h library from Microsoft [REF-56]. These libraries provide safer versions of overflow-prone string-handling functions.
Mitigation MIT-10
Operation
Build and Compilation
Strategy: Environment Hardening
- Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
- D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation MIT-9
Implementation
- Consider adhering to the following rules when allocating and managing an application's memory:
- Double check that the buffer is as large as specified.
- When using functions that accept a number of bytes to copy, such as strncpy(), be aware that if the destination buffer size is equal to the source buffer size, it may not NULL-terminate the string.
- Check buffer boundaries if accessing the buffer in a loop and make sure there is no danger of writing past the allocated space.
- If necessary, truncate all input strings to a reasonable length before passing them to the copy and concatenation functions.
Mitigation MIT-11
Operation
Build and Compilation
Strategy: Environment Hardening
- Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
- Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
- For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
Mitigation MIT-12
Operation
Strategy: Environment Hardening
- Use a CPU and operating system that offers Data Execution Protection (using hardware NX or XD bits) or the equivalent techniques that simulate this feature in software, such as PaX [REF-60] [REF-61]. These techniques ensure that any instruction executed is exclusively at a memory address that is part of the code segment.
- For more information on these techniques see D3-PSEP (Process Segment Execution Prevention) from D3FEND [REF-1336].
Mitigation MIT-13
Implementation
Replace unbounded copy functions with analogous functions that support length arguments, such as strcpy with strncpy. Create these if they are not available.
No CAPEC attack patterns related to this CWE.