Common Weakness Enumeration
CWE-131
AllowedIncorrect Calculation of Buffer Size
Abstraction: Base · Status: Draft
The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow.
296 vulnerabilities reference this CWE, most recent first.
CVE-2025-0395 (GCVE-0-2025-0395)
Vulnerability from cvelistv5 – Published: 2025-01-22 13:11 – Updated: 2026-05-12 12:02
VLAI
EPSS
VEX
Summary
When the assert() function in the GNU C Library versions 2.13 to 2.40 fails, it does not allocate enough space for the assertion failure message string and size information, which may lead to a buffer overflow if the message string size aligns to page size.
Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-04 20:45 UTC
CWE
- CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
12 references
Impacted products
15 products
| Vendor | Product | Version | |
|---|---|---|---|
| The GNU C Library | glibc |
Affected:
2.13 , ≤ 2.40
(custom)
|
|
| Siemens | RUGGEDCOM ROX MX5000 |
Affected:
0 , < V2.17.1
(custom)
|
|
| Siemens | RUGGEDCOM ROX MX5000RE |
Affected:
0 , < V2.17.1
(custom)
|
|
| Siemens | RUGGEDCOM ROX RX1400 |
Affected:
0 , < V2.17.1
(custom)
|
|
| Siemens | RUGGEDCOM ROX RX1500 |
Affected:
0 , < V2.17.1
(custom)
|
|
| Siemens | RUGGEDCOM ROX RX1501 |
Affected:
0 , < V2.17.1
(custom)
|
|
| Siemens | RUGGEDCOM ROX RX1510 |
Affected:
0 , < V2.17.1
(custom)
|
|
| Siemens | RUGGEDCOM ROX RX1511 |
Affected:
0 , < V2.17.1
(custom)
|
|
| Siemens | RUGGEDCOM ROX RX1512 |
Affected:
0 , < V2.17.1
(custom)
|
|
| Siemens | RUGGEDCOM ROX RX1524 |
Affected:
0 , < V2.17.1
(custom)
|
|
| Siemens | RUGGEDCOM ROX RX1536 |
Affected:
0 , < V2.17.1
(custom)
|
|
| Siemens | RUGGEDCOM ROX RX5000 |
Affected:
0 , < V2.17.1
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
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CVE-2024-45287 (GCVE-0-2024-45287)
Vulnerability from cvelistv5 – Published: 2024-09-05 03:18 – Updated: 2024-09-26 15:03
VLAI
EPSS
VEX
Title
Multiple vulnerabilities in libnv
Summary
A malicious value of size in a structure of packed libnv can cause an integer overflow, leading to the allocation of a smaller buffer than required for the parsed data.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-05 13:16 UTC
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://security.freebsd.org/advisories/FreeBSD-S… | vendor-advisory |
| https://security.netapp.com/advisory/ntap-2024092… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| FreeBSD | FreeBSD |
Affected:
14.1-RELEASE , < p4
(release)
Affected: 14.0-RELEASE , < p10 (release) Affected: 13.3-RELEASE , < p6 (release) |
|
| freebsd | freebsd |
Affected:
14.1 , < 14.1_p4
(custom)
Affected: 14.0 , < 14.0_p10 (custom) Affected: 13.3 , < 13.3_p6 (custom) cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:* |
Date Public
2024-09-04 23:37
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CVE-2024-39808 (GCVE-0-2024-39808)
Vulnerability from cvelistv5 – Published: 2024-09-11 04:03 – Updated: 2024-09-11 13:36
VLAI
EPSS
VEX
Summary
Incorrect Calculation of Buffer Size (CWE-131) in the Controller 6000 and Controller 7000 OSDP message handling, allows an attacker with physical access to Controller wiring to instigate a reboot leading to a denial of service.
This issue affects: Controller 6000 and Controller 7000 9.10 prior to vCR9.10.240816a (distributed in 9.10.1530 (MR2)), 9.00 prior to vCR9.00.240816a (distributed in 9.00.2168 (MR4)), 8.90 prior to vCR8.90.240816a (distributed in 8.90.2155 (MR5)), 8.80 prior to vCR8.80.240816b (distributed in 8.80.1938 (MR6)), all versions of 8.70 and prior.
Severity
4.6 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-11 13:36 UTC
CWE
- CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Gallagher | Controller 6000 and Controller 7000 |
Affected:
0 , ≤ 8.70
(custom)
Affected: 9.10 , < vCR9.10.240816a (custom) Affected: 9.00 , < vCR9.00.240816a (custom) Affected: 8.90 , < vCR8.90.240816a (custom) Affected: 8.80 , < vCR8.80.240816b (custom) |
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CVE-2024-30405 (GCVE-0-2024-30405)
Vulnerability from cvelistv5 – Published: 2024-04-12 15:04 – Updated: 2024-08-12 17:24
VLAI
EPSS
VEX
Title
Junos OS: SRX 5000 Series with SPC2: Processing of specific crafted packets when ALG is enabled causes a transit traffic Denial of Service
Summary
An Incorrect Calculation of Buffer Size vulnerability in Juniper Networks Junos OS SRX 5000 Series devices using SPC2 line cards while ALGs are enabled allows an attacker sending specific crafted packets to cause a transit traffic Denial of Service (DoS).
Continued receipt and processing of these specific packets will sustain the Denial of Service condition.
This issue affects:
Juniper Networks Junos OS SRX 5000 Series with SPC2 with ALGs enabled.
* All versions earlier than 21.2R3-S7;
* 21.4 versions earlier than 21.4R3-S6;
* 22.1 versions earlier than 22.1R3-S5;
* 22.2 versions earlier than 22.2R3-S3;
* 22.3 versions earlier than 22.3R3-S2;
* 22.4 versions earlier than 22.4R3;
* 23.2 versions earlier than 23.2R2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-04-12 20:34 UTC
CWE
- CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA79105 | vendor-advisory |
| https://www.first.org/cvss/calculator/4.0#CVSS:4.… | technical-description |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 21.2R3-S7
(semver)
Affected: 21.4 , < 21.4R3-S6 (semver) Affected: 22.1 , < 22.1R3-S5 (semver) Affected: 22.2 , < 22.2R3-S3 (semver) Affected: 22.3 , < 22.3R3-S2 (semver) Affected: 22.4 , < 22.4R3 (semver) Affected: 23.2 , < 23.2R2 (semver) |
|
| juniper | junos |
Affected:
0 , < 21.2r3-s7
(semver)
Affected: 21.4 , < 21.4r3-s6 (semver) Affected: 22.1 , < 22.1r3-s5 (semver) Affected: 22.2 , < 22.2r3-s3 (semver) Affected: 22.3 , < 22.3r3-s2 (semver) Affected: 22.4 , < 22.4r3 (semver) Affected: 23.2 , < 23.2r2 (semver) cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* |
Date Public
2024-04-10 16:00
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CVE-2024-28052 (GCVE-0-2024-28052)
Vulnerability from cvelistv5 – Published: 2024-10-30 13:35 – Updated: 2024-10-30 15:03
VLAI
EPSS
VEX
Summary
The WBR-6012 is a wireless SOHO router. It is a low-cost device which functions as an internet gateway for homes and small offices while aiming to be easy to configure and operate. In addition to providing a WiFi access point, the device serves as a 4-port wired router and implements a variety of common SOHO router capabilities such as port forwarding, quality-of-service, web-based administration, a DHCP server, a basic DMZ, and UPnP capabilities.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-30 14:41 UTC
CWE
- CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
Impacted products
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CVE-2024-23805 (GCVE-0-2024-23805)
Vulnerability from cvelistv5 – Published: 2024-02-14 16:30 – Updated: 2025-05-12 15:06
VLAI
EPSS
VEX
Title
F5 Application Visibility and Reporting module and BIG-IP Advanced WAF/ASM vulnerability
Summary
Undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate. For the Application Visibility and Reporting module, this may occur when the HTTP Analytics profile with URLs enabled under Collected Entities is configured on a virtual server and the DB variables avr.IncludeServerInURI or avr.CollectOnlyHostnameFromURI are enabled. For BIG-IP Advanced WAF and ASM, this may occur when either a DoS or Bot Defense profile is configured on a virtual server and the DB variables avr.IncludeServerInURI or avr.CollectOnlyHostnameFromURI are enabled.
Note: The DB variables avr.IncludeServerInURI and avr.CollectOnlyHostnameFromURI are not enabled by default. For more information about the HTTP Analytics profile and the Collect URLs setting, refer to K30875743: Create a new Analytics profile and attach it to your virtual servers https://my.f5.com/manage/s/article/K30875743 .
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-03-11 12:57 UTC
CWE
- CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://my.f5.com/manage/s/article/K000137334 | vendor-advisory |
Impacted products
Date Public
2024-01-15 00:00
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CVE-2024-23622 (GCVE-0-2024-23622)
Vulnerability from cvelistv5 – Published: 2024-01-25 23:36 – Updated: 2025-06-17 21:19
VLAI
EPSS
VEX
Title
IBM Merge Healthcare eFilm Workstation License Server CopySLS_Request3 Buffer Overflow
Summary
A stack-based buffer overflow exists in IBM Merge Healthcare eFilm Workstation license server. A remote, unauthenticated attacker can exploit this vulnerability to achieve remote code execution with SYSTEM privileges.
Severity
10 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-01-31 18:42 UTC
CWE
- CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://blog.exodusintel.com/2024/01/25/ibm-merge… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM Merge Healthcare | eFilm Workstation |
Affected:
4.1 , ≤ 4.2
(semver)
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CVE-2024-23621 (GCVE-0-2024-23621)
Vulnerability from cvelistv5 – Published: 2024-01-25 23:36 – Updated: 2025-06-03 18:17
VLAI
EPSS
VEX
Title
IBM Merge Healthcare eFilm Workstation License Server Buffer Overflow
Summary
A buffer overflow exists in IBM Merge Healthcare eFilm Workstation license server. A remote, unauthenticated attacker can exploit this vulnerability to achieve remote code execution.
Severity
10 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-03 18:09 UTC
CWE
- CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://blog.exodusintel.com/2024/01/25/ibm-merge… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
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| IBM Merge Healthcare | eFilm Workstation |
Affected:
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CVE-2024-23606 (GCVE-0-2024-23606)
Vulnerability from cvelistv5 – Published: 2024-02-20 15:29 – Updated: 2025-11-04 18:28
VLAI
EPSS
VEX
Summary
An out-of-bounds write vulnerability exists in the sopen_FAMOS_read functionality of The Biosig Project libbiosig 2.5.0 and Master Branch (ab0ee111). A specially crafted .famos file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-20 18:23 UTC
CWE
- CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
3 references
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| The Biosig Project | libbiosig |
Affected:
2.5.0
Affected: Master Branch (ab0ee111) |
|
| fedoraproject | fedora |
Affected:
40
cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:* |
|
| the_biosig_project | libbiosig |
Affected:
2.5.0
cpe:2.3:a:the_biosig_project:libbiosig:2.5.0:*:*:*:*:*:*:* |
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CVE-2024-11425 (GCVE-0-2024-11425)
Vulnerability from cvelistv5 – Published: 2025-01-17 09:00 – Updated: 2025-02-12 17:09
VLAI
EPSS
VEX
Summary
CWE-131: Incorrect Calculation of Buffer Size vulnerability exists that could cause Denial-of-Service of the
product when an unauthenticated user is sending a crafted HTTPS packet to the webserver.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-17 13:22 UTC
CWE
- CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
1 reference
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Schneider Electric | Modicon M580 CPU (part numbers BMEP* and BMEH*, excluding M580 CPU Safety) |
Affected:
Versions prior to SV4.30
|
|
| Schneider Electric | Modicon M580 CPU Safety (part numbers BMEP58*S and BMEH58*S) |
Affected:
Versions prior to SV4.21
|
|
| Schneider Electric | BMENOR2200H |
Affected:
All Versions
|
|
| Schneider Electric | EVLink Pro AC |
Affected:
Versions prior to v1.3.10
|
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Mitigation
Implementation
When allocating a buffer for the purpose of transforming, converting, or encoding an input, allocate enough memory to handle the largest possible encoding. For example, in a routine that converts "&" characters to "&" for HTML entity encoding, the output buffer needs to be at least 5 times as large as the input buffer.
Mitigation MIT-36
Implementation
- Understand the programming language's underlying representation and how it interacts with numeric calculation (CWE-681). Pay close attention to byte size discrepancies, precision, signed/unsigned distinctions, truncation, conversion and casting between types, "not-a-number" calculations, and how the language handles numbers that are too large or too small for its underlying representation. [REF-7]
- Also be careful to account for 32-bit, 64-bit, and other potential differences that may affect the numeric representation.
Mitigation MIT-8
Implementation
Strategy: Input Validation
Perform input validation on any numeric input by ensuring that it is within the expected range. Enforce that the input meets both the minimum and maximum requirements for the expected range.
Mitigation MIT-15
Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Mitigation
Implementation
When processing structured incoming data containing a size field followed by raw data, identify and resolve any inconsistencies between the size field and the actual size of the data (CWE-130).
Mitigation
Implementation
When allocating memory that uses sentinels to mark the end of a data structure - such as NUL bytes in strings - make sure you also include the sentinel in your calculation of the total amount of memory that must be allocated.
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.
Mitigation
Implementation
Use sizeof() on the appropriate data type to avoid CWE-467.
Mitigation
Implementation
Use the appropriate type for the desired action. For example, in C/C++, only use unsigned types for values that could never be negative, such as height, width, or other numbers related to quantity. This will simplify validation and will reduce surprises related to unexpected casting.
Mitigation MIT-4
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 [REF-1482].
- Use libraries or frameworks that make it easier to handle numbers without unexpected consequences, or buffer allocation routines that automatically track buffer size.
- Examples include safe integer handling packages such as SafeInt (C++) or IntegerLib (C or C++). [REF-106]
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-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-26
Implementation
Strategy: Compilation or Build Hardening
Examine compiler warnings closely and eliminate problems with potential security implications, such as signed / unsigned mismatch in memory operations, or use of uninitialized variables. Even if the weakness is rarely exploitable, a single failure may lead to the compromise of the entire system.
Mitigation MIT-17
Architecture and Design
Operation
Strategy: Environment Hardening
Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.
Mitigation MIT-22
Architecture and Design
Operation
Strategy: Sandbox or Jail
- Run the code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
- OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
- This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
- Be careful to avoid CWE-243 and other weaknesses related to jails.
CAPEC-100: Overflow Buffers
Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an adversary. As a consequence, an adversary is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the adversaries' choice.
CAPEC-47: Buffer Overflow via Parameter Expansion
In this attack, the target software is given input that the adversary knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.