Common Weakness Enumeration

CWE-252

Allowed

Unchecked Return Value

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.

227 vulnerabilities reference this CWE, most recent first.

CVE-2023-24825 (GCVE-0-2023-24825)

Vulnerability from cvelistv5 – Published: 2023-05-30 15:54 – Updated: 2025-01-10 16:55
VLAI
Title
RIOT-OS vulnerable to NULL pointer dereference in gnrc_pktbuf_mark
Summary
RIOT-OS, an operating system for Internet of Things (IoT) devices, contains a network stack with the ability to process 6LoWPAN frames. Prior to version 2023.04, an attacker can send a crafted frame to the device to trigger a NULL pointer dereference leading to denial of service. This issue is fixed in version 2023.04. There are no known workarounds.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
RIOT-OS RIOT Affected: < 2023.04
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CVE-2023-6918 (GCVE-0-2023-6918)

Vulnerability from cvelistv5 – Published: 2023-12-18 23:27 – Updated: 2025-11-21 06:23
VLAI
Title
Libssh: missing checks for return values for digests
Summary
A flaw was found in the libssh implements abstract layer for message digest (MD) operations implemented by different supported crypto backends. The return values from these were not properly checked, which could cause low-memory situations failures, NULL dereferences, crashes, or usage of the uninitialized memory as an input for the KDF. In this case, non-matching keys will result in decryption/integrity failures, terminating the connection.
Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
Assigner
References
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:0.9.6-14.el8 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:8::baseos
    cpe:/a:redhat:enterprise_linux:8::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:0.10.4-13.el9 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
 Create a notification for this product.
Date Public
2023-12-18 00:00
Credits
Red Hat would like to thank Jack Weinstein (<mike.code.bb.h@gmail.com>) for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2023-4162 (GCVE-0-2023-4162)

Vulnerability from cvelistv5 – Published: 2023-08-31 00:14 – Updated: 2024-09-30 15:47
VLAI
Title
Segmentation fault in Brocade Fabric OS after Brocade Fabric OS v9.0
Summary
A segmentation fault can occur in Brocade Fabric OS after Brocade Fabric OS v9.0 and before Brocade Fabric OS v9.2.0a through the passwdcfg command. This could allow an authenticated privileged user local user to crash a Brocade Fabric OS swith using the cli “passwdcfg --set -expire -minDiff“.
Severity
4.4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Brocade Fabric OS Affected: Brocade Fabric OS after Brocade Fabric OS v9.0 and before Brocade Fabric OS v9.2.0a
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CVE-2023-3247 (GCVE-0-2023-3247)

Vulnerability from cvelistv5 – Published: 2023-07-22 04:17 – Updated: 2024-10-15 20:34
VLAI
Title
Missing error check and insufficient random bytes in HTTP Digest authentication for SOAP
Summary
In PHP versions 8.0.* before 8.0.29, 8.1.* before 8.1.20, 8.2.* before 8.2.7 when using SOAP HTTP Digest Authentication, random value generator was not checked for failure, and was using narrower range of values than it should have. In case of random generator failure, it could lead to a disclosure of 31 bits of uninitialized memory from the client to the server, and it also made easier to a malicious server to guess the client's nonce. 
Severity
2.6 (Low)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-252 - Unchecked Return Value
  • CWE-330 - Use of Insufficiently Random Values
Assigner
php
References
Impacted products
Vendor Product Version
PHP Group PHP Affected: 8.0.* , < 8.0.29 (semver)
Affected: 8.1.* , < 8.1.20 (semver)
Affected: 8.2.* , < 8.2.7 (semver)
Create a notification for this product.
Credits
Niels Dossche Tim Düsterhus
Show details on NVD website
To clipboard 

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CVE-2023-3013 (GCVE-0-2023-3013)

Vulnerability from cvelistv5 – Published: 2023-05-31 00:00 – Updated: 2025-01-09 19:42
VLAI
Title
Unchecked Return Value in gpac/gpac
Summary
Unchecked Return Value in GitHub repository gpac/gpac prior to 2.2.2.
Severity
4.4 (Medium)
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
gpac gpac/gpac Affected: unspecified , < 2.2.2 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2022-43765 (GCVE-0-2022-43765)

Vulnerability from cvelistv5 – Published: 2023-02-08 10:17 – Updated: 2025-03-25 13:58
VLAI
Title
DoS in APROLs Tbase server
Summary
B&R APROL versions < R 4.2-07 doesn’t process correctly specially formatted data packages sent to port 55502/tcp, which may allow a network based attacker to cause an application Denial-of-Service.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
ABB
References
Impacted products
Date Public
2023-01-30 06:30
Show details on NVD website
To clipboard 

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CVE-2022-43763 (GCVE-0-2022-43763)

Vulnerability from cvelistv5 – Published: 2023-02-08 10:11 – Updated: 2025-03-25 13:59
VLAI
Title
Lack of checking preconditions in APROL
Summary
Insufficient check of preconditions could lead to Denial of Service conditions when calling commands on the Tbase server of B&R APROL versions < R 4.2-07.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
ABB
References
Impacted products
Date Public
2023-01-30 06:30
Show details on NVD website
To clipboard 

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CVE-2022-31225 (GCVE-0-2022-31225)

Vulnerability from cvelistv5 – Published: 2022-09-12 18:35 – Updated: 2024-09-16 23:10
VLAI
Summary
Dell BIOS versions contain an Unchecked Return Value vulnerability. A local authenticated administrator user could potentially exploit this vulnerability in order to change the state of the system or cause unexpected failures.
Severity
3 (Low)
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L
CWE
Assigner
References
Impacted products
Vendor Product Version
Dell CPG BIOS Affected: unspecified , < 21Q4 platforms (custom)
Create a notification for this product.
Date Public
2022-08-05 00:00
Show details on NVD website
To clipboard 

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CVE-2022-31089 (GCVE-0-2022-31089)

Vulnerability from cvelistv5 – Published: 2022-06-27 21:10 – Updated: 2025-04-23 18:06
VLAI
Title
Invalid file request can crashe parse-server
Summary
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. In affected versions certain types of invalid files requests are not handled properly and can crash the server. If you are running multiple Parse Server instances in a cluster, the availability impact may be low; if you are running Parse Server as single instance without redundancy, the availability impact may be high. This issue has been addressed in versions 4.10.12 and 5.2.3. Users are advised to upgrade. There are no known workarounds for this issue.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-706 - Use of Incorrectly-Resolved Name or Reference
  • CWE-252 - Unchecked Return Value
Assigner
References
Impacted products
Vendor Product Version
parse-community parse-server Affected: < 4.10.12
Affected: >=5.0.0, < 5.2.3
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2022-23476 (GCVE-0-2022-23476)

Vulnerability from cvelistv5 – Published: 2022-12-08 03:03 – Updated: 2025-04-23 16:31
VLAI
Title
Unchecked return value from xmlTextReaderExpand in Nokogiri
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Nokogiri `1.13.8` and `1.13.9` fail to check the return value from `xmlTextReaderExpand` in the method `Nokogiri::XML::Reader#attribute_hash`. This can lead to a null pointer exception when invalid markup is being parsed. For applications using `XML::Reader` to parse untrusted inputs, this may potentially be a vector for a denial of service attack. Users are advised to upgrade to Nokogiri `>= 1.13.10`. Users may be able to search their code for calls to either `XML::Reader#attributes` or `XML::Reader#attribute_hash` to determine if they are affected.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
sparklemotion nokogiri Affected: >= 1.13.8, < 1.13.10
Create a notification for this product.
Show details on NVD website
To clipboard 

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            "url": "https://github.com/sparklemotion/nokogiri/commit/9fe0761c47c0d4270d1a5220cfd25de080350d50"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-23476",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T15:48:08.798198Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T16:31:18.189Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "nokogiri",
          "vendor": "sparklemotion",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.13.8, \u003c 1.13.10"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Nokogiri is an open source XML and HTML library for the Ruby programming language. Nokogiri `1.13.8` and `1.13.9` fail to check the return value from `xmlTextReaderExpand` in the method `Nokogiri::XML::Reader#attribute_hash`. This can lead to a null pointer exception when invalid markup is being parsed. For applications using `XML::Reader` to parse untrusted inputs, this may potentially be a vector for a denial of service attack. Users are advised to upgrade to Nokogiri `\u003e= 1.13.10`. Users may be able to search their code for calls to either `XML::Reader#attributes` or `XML::Reader#attribute_hash` to determine if they are affected."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-252",
              "description": "CWE-252: Unchecked Return Value",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "CWE-476: NULL Pointer Dereference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-12-08T03:03:24.572Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-qv4q-mr5r-qprj",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-qv4q-mr5r-qprj"
        },
        {
          "name": "https://github.com/sparklemotion/nokogiri/commit/85410e38410f670cbbc8c5b00d07b843caee88ce",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/sparklemotion/nokogiri/commit/85410e38410f670cbbc8c5b00d07b843caee88ce"
        },
        {
          "name": "https://github.com/sparklemotion/nokogiri/commit/9fe0761c47c0d4270d1a5220cfd25de080350d50",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/sparklemotion/nokogiri/commit/9fe0761c47c0d4270d1a5220cfd25de080350d50"
        }
      ],
      "source": {
        "advisory": "GHSA-qv4q-mr5r-qprj",
        "discovery": "UNKNOWN"
      },
      "title": "Unchecked return value from xmlTextReaderExpand in Nokogiri"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2022-23476",
    "datePublished": "2022-12-08T03:03:24.572Z",
    "dateReserved": "2022-01-19T21:23:53.758Z",
    "dateUpdated": "2025-04-23T16:31:18.189Z",
    "requesterUserId": "c184a3d9-dc98-4c48-a45b-d2d88cf0ac74",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}
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.

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