CWE-122
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
CVE-2026-3549 (GCVE-0-2026-3549)
Vulnerability from cvelistv5 – Published: 2026-03-19 20:09 – Updated: 2026-03-24 01:38
VLAI
Title
ECH parsing heap buffer overflow
Summary
Heap Overflow in TLS 1.3 ECH parsing. An integer underflow existed in ECH extension parsing logic when calculating a buffer length, which resulted in writing beyond the bounds of an allocated buffer. Note that in wolfSSL, ECH is off by default, and the ECH standard is still evolving.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based buffer overflow
Assigner
References
1 reference
Credits
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CVE-2026-35512 (GCVE-0-2026-35512)
Vulnerability from cvelistv5 – Published: 2026-04-17 20:21 – Updated: 2026-04-22 03:55
VLAI
Title
xrdp: Heap buffer overflow in EGFX channel
Summary
xrdp is an open source RDP server. Versions through 0.10.5 have a heap-based buffer overflow in the EGFX (graphics dynamic virtual channel) implementation due to insufficient validation of client-controlled size parameters, allowing an out-of-bounds write via crafted PDUs. Pre-authentication exploitation can crash the process, while post-authentication exploitation may achieve remote code execution. This issue has been fixed in version 0.10.6. If users are unable to immediately update, they should run xrdp as a non-privileged user (default since 0.10.2) to limit the impact of successful exploitation.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/neutrinolabs/xrdp/security/adv… | x_refsource_CONFIRM |
| https://github.com/neutrinolabs/xrdp/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| neutrinolabs | xrdp |
Affected:
< 0.10.6
|
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CVE-2026-35547 (GCVE-0-2026-35547)
Vulnerability from cvelistv5 – Published: 2026-04-30 08:08 – Updated: 2026-05-01 15:26
VLAI
Title
Heap overflow in libnv
Summary
When processing the header of an incoming message, libnv failed to properly validate the message size.
The lack of validation allows a malicious program to write outside the bounds of a heap allocation. This can trigger a crash or system panic, and it may be possible for an unprivileged user to exploit the bug to elevate their privileges.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.freebsd.org/advisories/FreeBSD-S… | vendor-advisory |
Impacted products
Date Public
2026-04-29 19:00
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CVE-2026-3555 (GCVE-0-2026-3555)
Vulnerability from cvelistv5 – Published: 2026-03-13 20:36 – Updated: 2026-03-16 20:16
VLAI
Title
Philips Hue Bridge Zigbee Stack Custom Command Handler Heap-based Buffer Overflow Remote Code Execution Vulnerability
Summary
Philips Hue Bridge Zigbee Stack Custom Command Handler Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips Hue Bridge. User interaction is required to exploit this vulnerability in that the user must initiate the device pairing process.
The specific flaw exists within the handling of custom Zigbee ZCL frames in the Model Info download functionality. The issue results from the lack of proper validation of the size of data prior to copying it to a fixed-size heap buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-28276.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Philips | Hue Bridge |
Affected:
1.73.1973146020
|
Date Public
2026-03-06 21:19
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CVE-2026-3556 (GCVE-0-2026-3556)
Vulnerability from cvelistv5 – Published: 2026-03-13 20:36 – Updated: 2026-03-16 20:17
VLAI
Title
Philips Hue Bridge HomeKit Pair-Setup Heap-based Buffer Overflow Remote Code Execution Vulnerability
Summary
Philips Hue Bridge HomeKit Pair-Setup Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips Hue Bridge. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the hk_hap_pair_storage_put function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the HomeKit service. Was ZDI-CAN-28326.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Philips | Hue Bridge |
Affected:
1.73.1973146020
|
Date Public
2026-03-06 21:19
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CVE-2026-3557 (GCVE-0-2026-3557)
Vulnerability from cvelistv5 – Published: 2026-03-13 20:36 – Updated: 2026-03-16 20:17
VLAI
Title
Philips Hue Bridge hap_pair_verify_handler Sub-TLV Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
Summary
Philips Hue Bridge hap_pair_verify_handler Sub-TLV Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips Hue Bridge. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.
The specific flaw exists within the hap_pair_verify_handler function of the hk_hap service, which listens on TCP port 8080 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-28337.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Philips | Hue Bridge |
Affected:
1.73.1973146020
|
Date Public
2026-03-06 21:19
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CVE-2026-3560 (GCVE-0-2026-3560)
Vulnerability from cvelistv5 – Published: 2026-03-13 20:37 – Updated: 2026-03-16 20:20
VLAI
Title
Philips Hue Bridge HomeKit hk_hap_pair_storage_put Heap-based Buffer Overflow Remote Code Execution Vulnerability
Summary
Philips Hue Bridge HomeKit hk_hap_pair_storage_put Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips Hue Bridge. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the hk_hap_pair_storage_put function of the HomeKit implementation, which listens on TCP port 8080 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-28469.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Philips | Hue Bridge |
Affected:
1.73.1973146020
|
Date Public
2026-03-06 21:19
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CVE-2026-3561 (GCVE-0-2026-3561)
Vulnerability from cvelistv5 – Published: 2026-03-13 20:37 – Updated: 2026-03-16 20:21
VLAI
Title
Philips Hue Bridge hk_hap characteristics Heap-based Buffer Overflow Remote Code Execution Vulnerability
Summary
Philips Hue Bridge hk_hap characteristics Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips Hue Bridge. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.
The specific flaw exists within the handling of PUT requests to the characteristics endpoint. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-28479.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Philips | Hue Bridge |
Affected:
1.73.1973146020
|
Date Public
2026-03-06 21:19
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CVE-2026-3713 (GCVE-0-2026-3713)
Vulnerability from cvelistv5 – Published: 2026-03-08 06:02 – Updated: 2026-03-11 13:43 X_Open Source
VLAI
Title
pnggroup libpng pnm2png pnm2png.c do_pnm2png heap-based overflow
Summary
A flaw has been found in pnggroup libpng up to 1.6.55. Affected by this vulnerability is the function do_pnm2png of the file contrib/pngminus/pnm2png.c of the component pnm2png. This manipulation of the argument width/height causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.349658 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.349658 | signaturepermissions-required |
| https://vuldb.com/?submit.761996 | third-party-advisory |
| https://github.com/pnggroup/libpng/issues/794 | issue-tracking |
| https://github.com/biniamf/pocs/tree/main/pnm2png | exploit |
| https://github.com/pnggroup/libpng/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| pnggroup | libpng |
Affected:
1.6.0
Affected: 1.6.1 Affected: 1.6.2 Affected: 1.6.3 Affected: 1.6.4 Affected: 1.6.5 Affected: 1.6.6 Affected: 1.6.7 Affected: 1.6.8 Affected: 1.6.9 Affected: 1.6.10 Affected: 1.6.11 Affected: 1.6.12 Affected: 1.6.13 Affected: 1.6.14 Affected: 1.6.15 Affected: 1.6.16 Affected: 1.6.17 Affected: 1.6.18 Affected: 1.6.19 Affected: 1.6.20 Affected: 1.6.21 Affected: 1.6.22 Affected: 1.6.23 Affected: 1.6.24 Affected: 1.6.25 Affected: 1.6.26 Affected: 1.6.27 Affected: 1.6.28 Affected: 1.6.29 Affected: 1.6.30 Affected: 1.6.31 Affected: 1.6.32 Affected: 1.6.33 Affected: 1.6.34 Affected: 1.6.35 Affected: 1.6.36 Affected: 1.6.37 Affected: 1.6.38 Affected: 1.6.39 Affected: 1.6.40 Affected: 1.6.41 Affected: 1.6.42 Affected: 1.6.43 Affected: 1.6.44 Affected: 1.6.45 Affected: 1.6.46 Affected: 1.6.47 Affected: 1.6.48 Affected: 1.6.49 Affected: 1.6.50 Affected: 1.6.51 Affected: 1.6.52 Affected: 1.6.53 Affected: 1.6.54 Affected: 1.6.55 cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:* |
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CVE-2026-3994 (GCVE-0-2026-3994)
Vulnerability from cvelistv5 – Published: 2026-03-12 06:02 – Updated: 2026-03-12 14:25
VLAI
Title
rui314 mold Object File input-files.cc initialize_sections heap-based overflow
Summary
A vulnerability was detected in rui314 mold up to 2.40.4. This issue affects the function mold::ObjectFilemold::X86_64::initialize_sections of the file src/input-files.cc of the component Object File Handler. Performing a manipulation results in heap-based buffer overflow. Attacking locally is a requirement. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.350476 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.350476 | signaturepermissions-required |
| https://vuldb.com/?submit.769772 | third-party-advisory |
| https://github.com/rui314/mold/issues/1548 | issue-tracking |
| https://github.com/oneafter/0209/blob/main/mo2/repro | exploit |
| https://github.com/rui314/mold/ | product |
Impacted products
Credits
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Mitigation
Phases:
Description:
- Pre-design: Use a language or compiler that performs automatic bounds checking.
Mitigation
Phase: Architecture and Design
Description:
- Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation ID: MIT-10
Phases: Operation, Build and Compilation
Strategy: Environment Hardening
Description:
- 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 ID: MIT-11
Phases: Operation, Build and Compilation
Strategy: Environment Hardening
Description:
- 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
Phase: Implementation
Description:
- Implement and perform bounds checking on input.
Mitigation
Phase: Implementation
Strategy: Libraries or Frameworks
Description:
- Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
Mitigation
Phase: Operation
Description:
- Use OS-level preventative functionality. This is not a complete solution, but it provides some defense in depth.
CAPEC-92: Forced Integer Overflow
This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.