Common Weakness Enumeration
CWE-252
AllowedUnchecked Return Value
Abstraction: Base · Status: Draft
The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.
238 vulnerabilities reference this CWE, most recent first.
CVE-2026-21920 (GCVE-0-2026-21920)
Vulnerability from cvelistv5 – Published: 2026-01-15 20:28 – Updated: 2026-01-15 20:59
VLAI
EPSS
VEX
Title
Junos OS: SRX Series: If a specific request is processed by the DNS subsystem flowd will crash
Summary
An Unchecked Return Value vulnerability in the DNS module of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
If an SRX Series device configured for DNS processing, receives a specifically formatted DNS request flowd will crash and restart, which causes a service interruption until the process has recovered.
This issue affects Junos OS on SRX Series:
* 23.4 versions before 23.4R2-S5,
* 24.2 versions before 24.2R2-S1,
* 24.4 versions before 24.4R2.
This issue does not affect Junos OS versions before 23.4R1.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-15 20:58 UTC
CWE
- CWE-252 - Unchecked Return Value
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA106020 | vendor-advisory |
| https://kb.juniper.net/JSA106020 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
23.4 , < 23.4R2-S5
(semver)
Affected: 24.2 , < 24.2R2-S1 (semver) Affected: 24.4 , < 24.4R2 (semver) Unaffected: 0 , < 23.4R1 (semver) |
Date Public
2026-01-14 17:00
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CVE-2026-21502 (GCVE-0-2026-21502)
Vulnerability from cvelistv5 – Published: 2026-01-07 17:09 – Updated: 2026-01-07 18:21
VLAI
EPSS
VEX
Title
NULL Pointer Dereference in iccDEV XML Tag Parser
Summary
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV is vulnerable to NULL pointer dereference via the XML tag parser. This issue has been patched in version 2.3.1.2.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-07 18:15 UTC
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/InternationalColorConsortium/i… | x_refsource_CONFIRM |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| InternationalColorConsortium | iccDEV |
Affected:
< 2.3.1.2
|
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CVE-2026-21498 (GCVE-0-2026-21498)
Vulnerability from cvelistv5 – Published: 2026-01-07 17:09 – Updated: 2026-01-07 18:20
VLAI
EPSS
VEX
Title
NULL Pointer Dereference in iccDEV XML Calculator Parser
Summary
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV is vulnerable to NULL pointer dereference via the XML calculator parser. This issue has been patched in version 2.3.1.2.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-07 18:15 UTC
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/InternationalColorConsortium/i… | x_refsource_CONFIRM |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| InternationalColorConsortium | iccDEV |
Affected:
< 2.3.1.2
|
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CVE-2026-21497 (GCVE-0-2026-21497)
Vulnerability from cvelistv5 – Published: 2026-01-07 17:08 – Updated: 2026-01-07 18:19
VLAI
EPSS
VEX
Title
NULL Pointer Dereference in iccDEV Unknown Tag Parser
Summary
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV is vulnerable to NULL pointer dereference via an unknown tag parser. This issue has been patched in version 2.3.1.2.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-07 18:17 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/InternationalColorConsortium/i… | x_refsource_CONFIRM |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| InternationalColorConsortium | iccDEV |
Affected:
< 2.3.1.2
|
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CVE-2026-21496 (GCVE-0-2026-21496)
Vulnerability from cvelistv5 – Published: 2026-01-07 17:09 – Updated: 2026-01-07 18:19
VLAI
EPSS
VEX
Title
NULL Pointer Dereference in iccDEV Signature Parser
Summary
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of ICC color management profiles. Prior to version 2.3.1.2, iccDEV is vulnerable to NULL pointer dereference via the signature parser. This issue has been patched in version 2.3.1.2.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-07 18:16 UTC
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/InternationalColorConsortium/i… | x_refsource_CONFIRM |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| InternationalColorConsortium | iccDEV |
Affected:
< 2.3.1.2
|
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CVE-2026-21492 (GCVE-0-2026-21492)
Vulnerability from cvelistv5 – Published: 2026-01-06 20:23 – Updated: 2026-01-07 18:32
VLAI
EPSS
VEX
Title
iccDEV ToneMap Writer has NULL Pointer Member Call
Summary
iccDEV provides a set of libraries and tools that allow for the interaction, manipulation, and application of International Color Consortium (ICC) color management profiles. Versions prior to 2.3.1.2 have a NULL pointer member call vulnerability. This vulnerability affects users of the iccDEV library who process ICC color profiles. Version 2.3.1.2 contains a patch. No known workarounds are available.
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-07 18:32 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/InternationalColorConsortium/i… | x_refsource_CONFIRM |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| InternationalColorConsortium | iccDEV |
Affected:
< 2.3.1.2
|
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CVE-2026-20793 (GCVE-0-2026-20793)
Vulnerability from cvelistv5 – Published: 2026-05-12 16:34 – Updated: 2026-05-12 17:17
VLAI
EPSS
VEX
Summary
Unchecked return value for some Intel(R) QAT software drivers for Windows before version 1.13 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (low) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-12 17:15 UTC
CWE
- Denial of Service
- CWE-252 - Unchecked Return Value
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Intel(R) QAT software drivers for Windows |
Affected:
before version 1.13
|
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CVE-2026-11972 (GCVE-0-2026-11972)
Vulnerability from cvelistv5 – Published: 2026-06-23 22:02 – Updated: 2026-08-13 00:28
VLAI
EPSS
VEX
Title
tarfile opened in streaming mode mishandles EOF
Summary
When using the "tarfile" module with a file opened in "streaming mode" (mode="r|") the tarfile module did not properly handle EOF, making archive parsing take exponentially longer.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-24 15:33 UTC
Assigner
References
10 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.10.21
(python)
Affected: 3.11.0 , < 3.11.16 (python) Affected: 3.12.0 , < 3.12.14 (python) Affected: 3.13.0 , < 3.13.15 (python) Affected: 3.14.0 , < 3.14.7 (python) Affected: 3.15.0a1 , < 3.15.0b4 (python) |
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CVE-2026-0723 (GCVE-0-2026-0723)
Vulnerability from cvelistv5 – Published: 2026-01-22 13:34 – Updated: 2026-02-26 14:44
VLAI
EPSS
VEX
Title
Unchecked Return Value in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.6 before 18.6.4, 18.7 before 18.7.2, and 18.8 before 18.8.2 that could have allowed an individual with existing knowledge of a victim's credential ID to bypass two-factor authentication by submitting forged device responses.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-23 04:55 UTC
CWE
- CWE-252 - Unchecked Return Value
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://gitlab.com/gitlab-org/gitlab/-/issues/585333 | issue-trackingpermissions-required |
| https://hackerone.com/reports/3476052 | technical-descriptionexploitpermissions-required |
| https://about.gitlab.com/releases/2026/01/21/patc… |
Impacted products
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CVE-2026-0421 (GCVE-0-2026-0421)
Vulnerability from cvelistv5 – Published: 2026-01-14 22:18 – Updated: 2026-02-26 15:04
VLAI
EPSS
VEX
Summary
A potential vulnerability was reported in the BIOS of L13 Gen 6, L13 Gen 6 2-in-1, L14 Gen 6, and L16 Gen 2 ThinkPads which could result in Secure Boot being disabled even when configured as “On” in the BIOS setup menu. This issue only affects systems where Secure Boot is set to User Mode.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-16 04:55 UTC
CWE
- CWE-252 - Unchecked Return Value
Assigner
References
1 reference
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Lenovo | ThinkPad L13 Gen 6 BIOS |
Affected:
0 , < 1.10
(custom)
cpe:2.3:a:lenovo:thinkpad_l13_gen_6_bios:*:*:*:*:*:*:*:* |
|
| Lenovo | ThinkPad L13 Gen 6 2 in 1 BIOS |
Affected:
0 , < 1.10
(custom)
cpe:2.3:a:lenovo:thinkpad_l13_gen_6_2_in_1_bios:*:*:*:*:*:*:*:* |
|
| Lenovo | ThinkPad L14 Gen 6 BIOS |
Affected:
0 , < 1.06
(custom)
cpe:2.3:a:lenovo:thinkpad_l14_gen_6_bios:*:*:*:*:*:*:*:* |
|
| Lenovo | ThinkPad L16 Gen 2 BIOS |
Affected:
0 , < 1.06
(custom)
cpe:2.3:a:lenovo:thinkpad_l16_gen_2_bios:*:*:*:*:*:*:*:* |
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"value": "Update to the version (or higher) as recommended in the Product Impact section in the advisory:\u00a0 https://support.lenovo.com/us/en/product_security/LEN-210688"
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 0.3.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "da227ddf-6e25-4b41-b023-0f976dcaca4b",
"assignerShortName": "lenovo",
"cveId": "CVE-2026-0421",
"datePublished": "2026-01-14T22:18:56.115Z",
"dateReserved": "2025-12-04T19:05:55.282Z",
"dateUpdated": "2026-02-26T15:04:07.954Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation MIT-53
Implementation
Check the results of all functions that return a value and verify that the value is expected.
Mitigation MIT-56
Implementation
For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].
Mitigation
Implementation
Ensure that you account for all possible return values from the function.
Mitigation
Implementation
When designing a function, make sure you return a value or throw an exception in case of an error.
No CAPEC attack patterns related to this CWE.