Common Weakness Enumeration
CWE-170
AllowedImproper Null Termination
Abstraction: Base · Status: Incomplete
The product does not terminate or incorrectly terminates a string or array with a null character or equivalent terminator.
86 vulnerabilities reference this CWE, most recent first.
CVE-2026-2239 (GCVE-0-2026-2239)
Vulnerability from cvelistv5 – Published: 2026-03-26 20:00 – Updated: 2026-04-03 20:25
VLAI
EPSS
VEX
Title
Gimp: gimp: application crash (dos) via crafted psd file due to heap-buffer-overflow
Summary
A flaw was found in GIMP. Heap-buffer-overflow vulnerability exists in the fread_pascal_string function when processing a specially crafted PSD (Photoshop Document) file. This occurs because the buffer allocated for a Pascal string is not properly null-terminated, leading to an out-of-bounds read when strlen() is subsequently called. Successfully exploiting this vulnerability can cause the application to crash, resulting in an application level Denial of Service.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-30 11:29 UTC
CWE
- CWE-170 - Improper Null Termination
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-2239 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2437675 | issue-trackingx_refsource_REDHAT |
| https://gitlab.gnome.org/GNOME/gimp/-/issues/15812 |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
Date Public
2026-02-09 07:07
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CVE-2025-66220 (GCVE-0-2025-66220)
Vulnerability from cvelistv5 – Published: 2025-12-03 18:31 – Updated: 2025-12-03 19:10
VLAI
EPSS
VEX
Title
Envoy’s TLS certificate matcher for `match_typed_subject_alt_names` may incorrectly treat certificates containing an embedded null byte
Summary
Envoy is a high-performance edge/middle/service proxy. In 1.33.12, 1.34.10, 1.35.6, 1.36.2, and earlier, Envoy’s mTLS certificate matcher for match_typed_subject_alt_names may incorrectly treat certificates containing an embedded null byte (\0) inside an OTHERNAME SAN value as valid matches.
Severity
5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-03 19:10 UTC
CWE
- CWE-170 - Improper Null Termination
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/envoyproxy/envoy/security/advi… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| envoyproxy | envoy |
Affected:
>= 1.36.0, <= 1.36.2
Affected: >= 1.35.0, <= 1.35.6 Affected: >= 1.34.0, <= 1.34.10 Affected: <= 1.33.12 |
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CVE-2025-62792 (GCVE-0-2025-62792)
Vulnerability from cvelistv5 – Published: 2025-10-29 16:50 – Updated: 2025-10-29 18:10
VLAI
EPSS
VEX
Title
Wazuh vulnerable to Heap-based Buffer Over-read in w_expression_match
Summary
Wazuh is a free and open source platform used for threat prevention, detection, and response. Prior to 4.12.0, a buffer over-read occurs in w_expression_match() when strlen() is called on str_test, because the corresponding buffer is not being properly NULL terminated during its allocation in OS_CleanMSG(). A compromised agent can cause a READ operation beyond the end of the allocated buffer (which may contain sensitive information) by sending a specially crafted message to the wazuh manager. An attacker who is able to craft and send an agent message to the wazuh manager can cause a buffer over-read and potentially access sensitive data. This vulnerability is fixed in 4.12.0.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-29 18:10 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/wazuh/wazuh/security/advisorie… | x_refsource_CONFIRM |
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CVE-2025-61912 (GCVE-0-2025-61912)
Vulnerability from cvelistv5 – Published: 2025-10-10 22:04 – Updated: 2025-10-14 14:58
VLAI
EPSS
VEX
Title
python-ldap Vulnerable to Improper Encoding or Escaping of Output and Improper Null Termination
Summary
python-ldap is a lightweight directory access protocol (LDAP) client API for Python. In versions prior to 3.4.5, ldap.dn.escape_dn_chars() escapes \x00 incorrectly by emitting a backslash followed by a literal NUL byte instead of the RFC-4514 hex form \00. Any application that uses this helper to construct DNs from untrusted input can be made to consistently fail before a request is sent to the LDAP server (e.g., AD), resulting in a client-side denial of service. Version 3.4.5 contains a patch for the issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-14 14:57 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/python-ldap/python-ldap/securi… | x_refsource_CONFIRM |
| https://github.com/python-ldap/python-ldap/commit… | x_refsource_MISC |
| https://github.com/python-ldap/python-ldap/releas… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| python-ldap | python-ldap |
Affected:
< 3.4.5
|
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CVE-2025-2026 (GCVE-0-2025-2026)
Vulnerability from cvelistv5 – Published: 2025-12-31 07:32 – Updated: 2025-12-31 16:07
VLAI
EPSS
VEX
Summary
The NPort 6100-G2/6200-G2 Series is affected by a high-severity vulnerability (CVE-2025-2026) that allows remote attackers to execute a null byte injection through the device’s web API. This may lead to an unexpected device reboot and result in a denial-of-service (DoS) condition.
An authenticated remote attacker with web read-only privileges can exploit the vulnerable API to inject malicious input. Successful exploitation may cause the device to reboot, disrupting normal operations and causing a temporary denial of service.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-31 16:07 UTC
CWE
- CWE-170 - Improper Null Termination
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.moxa.com/en/support/product-support/s… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Moxa | NPort 6100-G2/6200-G2 Series |
Affected:
1.0.0
(custom)
Unaffected: 1.1.0 (custom) |
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CVE-2024-45288 (GCVE-0-2024-45288)
Vulnerability from cvelistv5 – Published: 2024-09-05 03:18 – Updated: 2024-09-20 16:03
VLAI
EPSS
VEX
Title
Multiple vulnerabilities in libnv
Summary
A missing null-termination character in the last element of an nvlist array string can lead to writing outside the allocated buffer.
Severity
8.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-05 13:15 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-2024-43474 (GCVE-0-2024-43474)
Vulnerability from cvelistv5 – Published: 2024-09-10 16:53 – Updated: 2026-08-10 15:10
VLAI
EPSS
VEX
Title
Microsoft SQL Server Information Disclosure Vulnerability
Summary
Microsoft SQL Server Information Disclosure Vulnerability
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 18:51 UTC
CWE
- CWE-170 - Improper Null Termination
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Microsoft SQL Server 2017 (CU 31) |
Affected:
14.0.0 , < 14.0.3475.1
(custom)
|
|
| Microsoft | Microsoft SQL Server 2017 (GDR) |
Affected:
14.0.0 , < 14.0.2060.1
(custom)
|
|
| Microsoft | Microsoft SQL Server 2019 (GDR) |
Affected:
15.0.0 , < 15.0.2120.1
(custom)
|
Date Public
2024-09-10 07:00
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CVE-2024-31484 (GCVE-0-2024-31484)
Vulnerability from cvelistv5 – Published: 2024-05-14 10:02 – Updated: 2025-02-13 17:47
VLAI
EPSS
VEX
Summary
A vulnerability has been identified in CPC80 Central Processing/Communication (All versions < V16.41), CPCI85 Central Processing/Communication (All versions < V5.30), CPCX26 Central Processing/Communication (All versions < V06.02), ETA4 Ethernet Interface IEC60870-5-104 (All versions < V10.46), ETA5 Ethernet Int. 1x100TX IEC61850 Ed.2 (All versions < V03.27), PCCX26 Ax 1703 PE, Contr, Communication Element (All versions < V06.05). The affected devices contain an improper null termination vulnerability while parsing a specific HTTP header. This could allow an attacker to execute code in the context of the current process or lead to denial of service condition.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-28 19:54 UTC
CWE
- CWE-170 - Improper Null Termination
Assigner
References
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | CPC80 Central Processing/Communication |
Affected:
0 , < V16.41
(custom)
|
|
| Siemens | CPCI85 Central Processing/Communication |
Affected:
0 , < V5.30
(custom)
|
|
| Siemens | CPCX26 Central Processing/Communication |
Affected:
0 , < V06.02
(custom)
|
|
| Siemens | ETA4 Ethernet Interface IEC60870-5-104 |
Affected:
0 , < V10.46
(custom)
|
|
| Siemens | ETA5 Ethernet Int. 1x100TX IEC61850 Ed.2 |
Affected:
0 , < V03.27
(custom)
|
|
| Siemens | PCCX26 Ax 1703 PE, Contr, Communication Element |
Affected:
0 , < V06.05
(custom)
|
|
| siemens | cpc80_central_processing\/communication |
Affected:
0 , < 16.41
(custom)
cpe:2.3:a:siemens:cpc80_central_processing\/communication:16.41:*:*:*:*:*:*:* |
|
| siemens | cpci85_central_processing\/communication |
Affected:
0 , < 5.30
(custom)
cpe:2.3:a:siemens:cpci85_central_processing\/communication:5.30:*:*:*:*:*:*:* |
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CVE-2024-31197 (GCVE-0-2024-31197)
Vulnerability from cvelistv5 – Published: 2024-09-18 13:59 – Updated: 2024-09-18 15:25
VLAI
EPSS
VEX
Title
Improper Null Termination in libfluid_msg library
Summary
Improper Null Termination vulnerability in Open Networking Foundation (ONF) libfluid (libfluid_msg module). This vulnerability is associated with program routine fluid_msg::of10::Port:unpack.
This issue affects libfluid: 0.1.0.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-18 15:18 UTC
CWE
- CWE-170 - Improper Null Termination
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Open Networking Foundation (ONF) | libfluid |
Affected:
0.1.0
|
|
| open_networking_foundation | libfluid |
Affected:
0.1.0
cpe:2.3:a:open_networking_foundation:libfluid:0.1.0:*:*:*:*:*:*:* |
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CVE-2024-21442 (GCVE-0-2024-21442)
Vulnerability from cvelistv5 – Published: 2024-03-12 16:57 – Updated: 2025-05-03 00:46
VLAI
EPSS
VEX
Title
Windows USB Print Driver Elevation of Privilege Vulnerability
Summary
Windows USB Print Driver Elevation of Privilege Vulnerability
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-03-12 18:23 UTC
CWE
- CWE-170 - Improper Null Termination
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisory |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.2340
(custom)
|
|
| Microsoft | Windows 11 version 21H2 |
Affected:
10.0.0 , < 10.0.22000.2836
(custom)
|
|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19043.0 , < 10.0.19044.4170
(custom)
|
|
| Microsoft | Windows 11 version 22H2 |
Affected:
10.0.22621.0 , < 10.0.22621.3296
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.4170
(custom)
|
|
| Microsoft | Windows 11 version 22H3 |
Affected:
10.0.22631.0 , < 10.0.22631.3296
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.3296
(custom)
|
|
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) |
Affected:
10.0.25398.0 , < 10.0.25398.763
(custom)
|
Date Public
2024-03-12 07:00
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Mitigation
Requirements
Use a language that is not susceptible to these issues. However, be careful of null byte interaction errors (CWE-626) with lower-level constructs that may be written in a language that is susceptible.
Mitigation
Implementation
Ensure that all string functions used are understood fully as to how they append null characters. Also, be wary of off-by-one errors when appending nulls to the end of strings.
Mitigation
Implementation
If performance constraints permit, special code can be added that validates null-termination of string buffers, this is a rather naive and error-prone solution.
Mitigation
Implementation
Switch to bounded string manipulation functions. Inspect buffer lengths involved in the buffer overrun trace reported with the defect.
Mitigation
Implementation
Add code that fills buffers with nulls (however, the length of buffers still needs to be inspected, to ensure that the non null-terminated string is not written at the physical end of the buffer).
No CAPEC attack patterns related to this CWE.