CWE-754
Allowed-with-ReviewImproper Check for Unusual or Exceptional Conditions
Abstraction: Class · Status: Incomplete
The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.
978 vulnerabilities reference this CWE, most recent first.
GHSA-8G4C-2Q3X-9MWX
Vulnerability from github – Published: 2025-12-16 06:30 – Updated: 2025-12-16 06:30CHOCO TEI WATCHER mini (IB-MCT001) contains an issue with improper check for unusual or exceptional conditions. If a remote attacker sends a specially crafted request to the Video Download interface, the system may become unresponsive.
{
"affected": [],
"aliases": [
"CVE-2025-61976"
],
"database_specific": {
"cwe_ids": [
"CWE-754"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-16T05:16:13Z",
"severity": "HIGH"
},
"details": "CHOCO TEI WATCHER mini (IB-MCT001) contains an issue with improper check for unusual or exceptional conditions. If a remote attacker sends a specially crafted request to the Video Download interface, the system may become unresponsive.",
"id": "GHSA-8g4c-2q3x-9mwx",
"modified": "2025-12-16T06:30:19Z",
"published": "2025-12-16T06:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61976"
},
{
"type": "WEB",
"url": "https://jvn.jp/en/vu/JVNVU92827367"
},
{
"type": "WEB",
"url": "https://www.inaba.co.jp/files/chocomini_vulnerability_newly_identified.pdf"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-8G7V-H849-8G58
Vulnerability from github – Published: 2024-11-09 00:30 – Updated: 2024-11-12 18:30vmir e8117 was discovered to contain a segmentation violation via the wasm_parse_block function at /src/vmir_wasm_parser.c.
{
"affected": [],
"aliases": [
"CVE-2024-35421"
],
"database_specific": {
"cwe_ids": [
"CWE-754"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-08T22:15:16Z",
"severity": "MODERATE"
},
"details": "vmir e8117 was discovered to contain a segmentation violation via the wasm_parse_block function at /src/vmir_wasm_parser.c.",
"id": "GHSA-8g7v-h849-8g58",
"modified": "2024-11-12T18:30:51Z",
"published": "2024-11-09T00:30:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35421"
},
{
"type": "WEB",
"url": "https://github.com/andoma/vmir/issues/22"
},
{
"type": "WEB",
"url": "https://gist.github.com/haruki3hhh/318c4e35531f9e3b01df51016ac5c12b"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8HGV-2X29-2PRX
Vulnerability from github – Published: 2022-05-24 19:03 – Updated: 2022-05-24 19:03Improper Check for Unusual or Exceptional Conditions vulnerability exists in Triconex Model 3009 MP installed on Tricon V11.3.x systems that could cause module reset when TCM receives malformed TriStation packets while the write-protect keyswitch is in the program position. This CVE ID is unique from CVE-2021-22742, CVE-2021-22744, CVE-2021-22745, and CVE-2021-22747.
{
"affected": [],
"aliases": [
"CVE-2021-22746"
],
"database_specific": {
"cwe_ids": [
"CWE-754"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-05-26T20:15:00Z",
"severity": "LOW"
},
"details": "Improper Check for Unusual or Exceptional Conditions vulnerability exists in Triconex Model 3009 MP installed on Tricon V11.3.x systems that could cause module reset when TCM receives malformed TriStation packets while the write-protect keyswitch is in the program position. This CVE ID is unique from CVE-2021-22742, CVE-2021-22744, CVE-2021-22745, and CVE-2021-22747.",
"id": "GHSA-8hgv-2x29-2prx",
"modified": "2022-05-24T19:03:16Z",
"published": "2022-05-24T19:03:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22746"
},
{
"type": "WEB",
"url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-130-03"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-8HVJ-G8H8-46HP
Vulnerability from github – Published: 2026-02-10 18:30 – Updated: 2026-02-10 18:30Improper conditions check in some firmware for some Intel(R) NPU Drivers within Ring 1: Device Drivers 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 (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
{
"affected": [],
"aliases": [
"CVE-2025-32735"
],
"database_specific": {
"cwe_ids": [
"CWE-754"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-10T17:16:17Z",
"severity": "MODERATE"
},
"details": "Improper conditions check in some firmware for some Intel(R) NPU Drivers within Ring 1: Device Drivers 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 (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.",
"id": "GHSA-8hvj-g8h8-46hp",
"modified": "2026-02-10T18:30:40Z",
"published": "2026-02-10T18:30:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-32735"
},
{
"type": "WEB",
"url": "https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01403.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-8HW7-7F8R-5QCM
Vulnerability from github – Published: 2023-06-16 18:30 – Updated: 2024-04-04 04:55A lack of exception handling in the Volkswagen Discover Media Infotainment System Software Version 0876 allows attackers to cause a Denial of Service (DoS) via supplying crafted media files when connecting a device to the vehicle's USB plug and play feature.
{
"affected": [],
"aliases": [
"CVE-2023-34733"
],
"database_specific": {
"cwe_ids": [
"CWE-754"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-06-16T17:15:12Z",
"severity": "MODERATE"
},
"details": "A lack of exception handling in the Volkswagen Discover Media Infotainment System Software Version 0876 allows attackers to cause a Denial of Service (DoS) via supplying crafted media files when connecting a device to the vehicle\u0027s USB plug and play feature.",
"id": "GHSA-8hw7-7f8r-5qcm",
"modified": "2024-04-04T04:55:09Z",
"published": "2023-06-16T18:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-34733"
},
{
"type": "WEB",
"url": "https://github.com/zj3t/Automotive-vulnerabilities/tree/main/VW/jetta2021"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8J33-P3G4-9J74
Vulnerability from github – Published: 2022-08-17 00:00 – Updated: 2022-08-19 00:00SWFMill commit 53d7690 was discovered to contain a segmentation violation via SWF::DeclareFunction2::write(SWF::Writer, SWF::Context).
{
"affected": [],
"aliases": [
"CVE-2022-36140"
],
"database_specific": {
"cwe_ids": [
"CWE-754"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-16T21:15:00Z",
"severity": "MODERATE"
},
"details": "SWFMill commit 53d7690 was discovered to contain a segmentation violation via SWF::DeclareFunction2::write(SWF::Writer*, SWF::Context*).",
"id": "GHSA-8j33-p3g4-9j74",
"modified": "2022-08-19T00:00:23Z",
"published": "2022-08-17T00:00:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-36140"
},
{
"type": "WEB",
"url": "https://github.com/djcsdy/swfmill/issues/57"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8J5H-CXPP-7G62
Vulnerability from github – Published: 2025-04-19 21:30 – Updated: 2025-04-19 21:307-Zip through 24.09 does not report an error for certain invalid xz files, involving stream flags and reserved bits.
{
"affected": [],
"aliases": [
"CVE-2022-47112"
],
"database_specific": {
"cwe_ids": [
"CWE-754"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-19T21:15:45Z",
"severity": "LOW"
},
"details": "7-Zip through 24.09 does not report an error for certain invalid xz files, involving stream flags and reserved bits.",
"id": "GHSA-8j5h-cxpp-7g62",
"modified": "2025-04-19T21:30:28Z",
"published": "2025-04-19T21:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-47112"
},
{
"type": "WEB",
"url": "https://github.com/boofish/semantic-bugs"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-8J79-G729-4VV7
Vulnerability from github – Published: 2023-02-18 00:31 – Updated: 2023-02-28 21:30HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107, function pci_vtsock_proc_tx in virtio-sock can lead to to uninitialized memory use. In this situation, there is a check for the return value to be less or equal to VTSOCK_MAXSEGS, but that check is not sufficient because the function can return -1 if it finds an error it cannot recover from. Moreover, the negative return value will be used by iovec_pull in a while condition that can further lead to more corruption because the function is not designed to handle a negative iov_len. This issue may lead to a guest crashing the host causing a denial of service and, under certain circumstance, memory corruption. This issue is fixed in commit af5eba2360a7351c08dfd9767d9be863a50ebaba.
{
"affected": [],
"aliases": [
"CVE-2021-32846"
],
"database_specific": {
"cwe_ids": [
"CWE-754",
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-02-17T23:15:00Z",
"severity": "HIGH"
},
"details": "HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107, function `pci_vtsock_proc_tx` in `virtio-sock` can lead to to uninitialized memory use. In this situation, there is a check for the return value to be less or equal to `VTSOCK_MAXSEGS`, but that check is not sufficient because the function can return `-1` if it finds an error it cannot recover from. Moreover, the negative return value will be used by `iovec_pull` in a while condition that can further lead to more corruption because the function is not designed to handle a negative `iov_len`. This issue may lead to a guest crashing the host causing a denial of service and, under certain circumstance, memory corruption. This issue is fixed in commit af5eba2360a7351c08dfd9767d9be863a50ebaba.",
"id": "GHSA-8j79-g729-4vv7",
"modified": "2023-02-28T21:30:17Z",
"published": "2023-02-18T00:31:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-32846"
},
{
"type": "WEB",
"url": "https://github.com/moby/hyperkit/pull/313"
},
{
"type": "WEB",
"url": "https://github.com/moby/hyperkit/commit/af5eba2360a7351c08dfd9767d9be863a50ebaba"
},
{
"type": "ADVISORY",
"url": "https://securitylab.github.com/advisories/GHSL-2021-054_057-moby-hyperkit"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8MGC-3HV6-4893
Vulnerability from github – Published: 2026-03-24 15:30 – Updated: 2026-06-30 03:35Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, and Firefox ESR < 140.9.
{
"affected": [],
"aliases": [
"CVE-2026-4685"
],
"database_specific": {
"cwe_ids": [
"CWE-754",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-24T13:16:04Z",
"severity": "HIGH"
},
"details": "Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability affects Firefox \u003c 149, Firefox ESR \u003c 115.34, and Firefox ESR \u003c 140.9.",
"id": "GHSA-8mgc-3hv6-4893",
"modified": "2026-06-30T03:35:58Z",
"published": "2026-03-24T15:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4685"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5930"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8287"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8288"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8289"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8290"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8315"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8427"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8850"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-4685"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2016349"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450724"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4685.json"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-21"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-22"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-23"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-24"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5931"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5932"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6188"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6342"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6917"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7837"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7838"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7839"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7840"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7841"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7842"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7843"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7845"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7858"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8284"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8285"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8286"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8Q7V-5P8J-CFCG
Vulnerability from github – Published: 2026-05-13 21:32 – Updated: 2026-07-14 18:31A race condition vulnerability in Palo Alto Networks Prisma® Browser enables a locally authenticated non-admin user to bypass certain access and data control policies.
{
"affected": [],
"aliases": [
"CVE-2026-0235"
],
"database_specific": {
"cwe_ids": [
"CWE-362",
"CWE-754"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-13T19:16:56Z",
"severity": "MODERATE"
},
"details": "A race condition vulnerability in Palo Alto Networks Prisma\u00ae Browser enables a locally authenticated non-admin user to bypass certain access and data control policies.",
"id": "GHSA-8q7v-5p8j-cfcg",
"modified": "2026-07-14T18:31:45Z",
"published": "2026-05-13T21:32:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0235"
},
{
"type": "WEB",
"url": "https://security.paloaltonetworks.com/CVE-2026-0235"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:M/U:Amber",
"type": "CVSS_V4"
}
]
}
Mitigation MIT-3
Strategy: Language Selection
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- Choose languages with features such as exception handling that force the programmer to anticipate unusual conditions that may generate exceptions. Custom exceptions may need to be developed to handle unusual business-logic conditions. Be careful not to pass sensitive exceptions back to the user (CWE-209, CWE-248).
Mitigation
Check the results of all functions that return a value and verify that the value is expected.
Mitigation
If using exception handling, catch and throw specific exceptions instead of overly-general exceptions (CWE-396, CWE-397). Catch and handle exceptions as locally as possible so that exceptions do not propagate too far up the call stack (CWE-705). Avoid unchecked or uncaught exceptions where feasible (CWE-248).
Mitigation MIT-39
- Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended). The messages should not reveal the methods that were used to determine the error. Attackers can use detailed information to refine or optimize their original attack, thereby increasing their chances of success.
- If errors must be captured in some detail, record them in log messages, but consider what could occur if the log messages can be viewed by attackers. Highly sensitive information such as passwords should never be saved to log files.
- Avoid inconsistent messaging that might accidentally tip off an attacker about internal state, such as whether a user account exists or not.
- Exposing additional information to a potential attacker in the context of an exceptional condition can help the attacker determine what attack vectors are most likely to succeed beyond DoS.
Mitigation MIT-5
Strategy: Input Validation
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
Mitigation MIT-38
If the program must fail, ensure that it fails gracefully (fails closed). There may be a temptation to simply let the program fail poorly in cases such as low memory conditions, but an attacker may be able to assert control before the software has fully exited. Alternately, an uncontrolled failure could cause cascading problems with other downstream components; for example, the program could send a signal to a downstream process so the process immediately knows that a problem has occurred and has a better chance of recovery.
Mitigation
Use system limits, which should help to prevent resource exhaustion. However, the product should still handle low resource conditions since they may still occur.
No CAPEC attack patterns related to this CWE.