CWE-190
AllowedInteger Overflow or Wraparound
Abstraction: Base · Status: Stable
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
3867 vulnerabilities reference this CWE, most recent first.
GHSA-MFPV-239C-R6FG
Vulnerability from github – Published: 2022-05-13 01:39 – Updated: 2022-05-13 01:39The mintToken function of a smart contract implementation for DestiNeed (DSN), an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value.
{
"affected": [],
"aliases": [
"CVE-2018-13699"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-07-09T06:29:00Z",
"severity": "HIGH"
},
"details": "The mintToken function of a smart contract implementation for DestiNeed (DSN), an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value.",
"id": "GHSA-mfpv-239c-r6fg",
"modified": "2022-05-13T01:39:39Z",
"published": "2022-05-13T01:39:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13699"
},
{
"type": "WEB",
"url": "https://github.com/BlockChainsSecurity/EtherTokens/blob/master/GEMCHAIN/mint%20integer%20overflow.md"
},
{
"type": "WEB",
"url": "https://github.com/BlockChainsSecurity/EtherTokens/tree/master/DestiNeedToken"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MFXC-VRVJ-33XX
Vulnerability from github – Published: 2022-05-13 01:26 – Updated: 2022-05-13 01:26Integer overflow in the VGA module in QEMU allows local guest OS users to cause a denial of service (out-of-bounds read and QEMU process crash) by editing VGA registers in VBE mode.
{
"affected": [],
"aliases": [
"CVE-2016-3712"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-05-11T21:59:00Z",
"severity": "MODERATE"
},
"details": "Integer overflow in the VGA module in QEMU allows local guest OS users to cause a denial of service (out-of-bounds read and QEMU process crash) by editing VGA registers in VBE mode.",
"id": "GHSA-mfxc-vrvj-33xx",
"modified": "2022-05-13T01:26:34Z",
"published": "2022-05-13T01:26:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-3712"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2016:2585"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2017:0621"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2016-3712"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1318712"
},
{
"type": "WEB",
"url": "https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg01196.html"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2016-2585.html"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2017-0621.html"
},
{
"type": "WEB",
"url": "http://support.citrix.com/article/CTX212736"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2016/dsa-3573"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/05/09/4"
},
{
"type": "WEB",
"url": "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/90314"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1035794"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/USN-2974-1"
},
{
"type": "WEB",
"url": "http://xenbits.xen.org/xsa/advisory-179.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"
}
]
}
GHSA-MG5C-FJCX-J5G5
Vulnerability from github – Published: 2025-04-01 18:30 – Updated: 2025-11-03 21:33In the Linux kernel, the following vulnerability has been resolved:
cifs: Fix integer overflow while processing closetimeo mount option
User-provided mount parameter closetimeo of type u32 is intended to have an upper limit, but before it is validated, the value is converted from seconds to jiffies which can lead to an integer overflow.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
{
"affected": [],
"aliases": [
"CVE-2025-21962"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-01T16:15:27Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: Fix integer overflow while processing closetimeo mount option\n\nUser-provided mount parameter closetimeo of type u32 is intended to have\nan upper limit, but before it is validated, the value is converted from\nseconds to jiffies which can lead to an integer overflow.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.",
"id": "GHSA-mg5c-fjcx-j5g5",
"modified": "2025-11-03T21:33:25Z",
"published": "2025-04-01T18:30:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21962"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1c46673be93dd2954f44fe370fb4f2b8e6214224"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/513f6cf2e906a504b7ab0b62b2eea993a6f64558"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6c13fcb7cf59ae65940da1dfea80144e42921e53"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9968fcf02cf6b0f78fbacf3f63e782162603855a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b24edd5c191c2689c59d0509f0903f9487eb6317"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d5a30fddfe2f2e540f6c43b59cf701809995faef"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.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"
}
]
}
GHSA-MG5M-VC6F-4MVQ
Vulnerability from github – Published: 2025-03-11 09:30 – Updated: 2025-03-11 09:30A vulnerability classified as critical has been found in libzvbi up to 0.2.43. This affects the function vbi_capture_sim_load_caption of the file src/io-sim.c. The manipulation leads to integer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.2.44 is able to address this issue. The identifier of the patch is ca1672134b3e2962cd392212c73f44f8f4cb489f. It is recommended to upgrade the affected component. The code maintainer was informed beforehand about the issues. She reacted very fast and highly professional.
{
"affected": [],
"aliases": [
"CVE-2025-2176"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-11T08:15:12Z",
"severity": "MODERATE"
},
"details": "A vulnerability classified as critical has been found in libzvbi up to 0.2.43. This affects the function vbi_capture_sim_load_caption of the file src/io-sim.c. The manipulation leads to integer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 0.2.44 is able to address this issue. The identifier of the patch is ca1672134b3e2962cd392212c73f44f8f4cb489f. It is recommended to upgrade the affected component. The code maintainer was informed beforehand about the issues. She reacted very fast and highly professional.",
"id": "GHSA-mg5m-vc6f-4mvq",
"modified": "2025-03-11T09:30:31Z",
"published": "2025-03-11T09:30:30Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/zapping-vbi/zvbi/security/advisories/GHSA-g7cg-7gw9-v8cf"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-2176"
},
{
"type": "WEB",
"url": "https://github.com/zapping-vbi/zvbi/commit/ca1672134b3e2962cd392212c73f44f8f4cb489f"
},
{
"type": "WEB",
"url": "https://github.com/zapping-vbi/zvbi/releases/tag/v0.2.44"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.299205"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.299205"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.512802"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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-MG6Q-FV7R-4P94
Vulnerability from github – Published: 2022-06-07 00:00 – Updated: 2022-06-14 00:00In apusys driver, there is a possible system crash due to an integer overflow. This could lead to local denial of service with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06477946; Issue ID: ALPS06477946.
{
"affected": [],
"aliases": [
"CVE-2022-21762"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-06-06T18:15:00Z",
"severity": "MODERATE"
},
"details": "In apusys driver, there is a possible system crash due to an integer overflow. This could lead to local denial of service with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06477946; Issue ID: ALPS06477946.",
"id": "GHSA-mg6q-fv7r-4p94",
"modified": "2022-06-14T00:00:24Z",
"published": "2022-06-07T00:00:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21762"
},
{
"type": "WEB",
"url": "https://corp.mediatek.com/product-security-bulletin/June-2022"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MGMV-54PF-P6JV
Vulnerability from github – Published: 2022-05-13 01:48 – Updated: 2025-04-20 03:41The gs_alloc_ref_array function in psi/ialloc.c in Artifex Ghostscript 9.21 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted PostScript document. This is related to a lack of an integer overflow check in base/gsalloc.c.
{
"affected": [],
"aliases": [
"CVE-2017-9835"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-07-26T19:29:00Z",
"severity": "HIGH"
},
"details": "The gs_alloc_ref_array function in psi/ialloc.c in Artifex Ghostscript 9.21 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted PostScript document. This is related to a lack of an integer overflow check in base/gsalloc.c.",
"id": "GHSA-mgmv-54pf-p6jv",
"modified": "2025-04-20T03:41:28Z",
"published": "2022-05-13T01:48:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-9835"
},
{
"type": "WEB",
"url": "https://bugs.ghostscript.com/show_bug.cgi?id=697985"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201811-12"
},
{
"type": "WEB",
"url": "http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=cfde94be1d4286bc47633c6e6eaf4e659bd78066"
},
{
"type": "WEB",
"url": "http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=cfde94be1d4286bc47633c6e6eaf4e659bd78066"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2017/dsa-3986"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/99991"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MGP7-GGV4-38HF
Vulnerability from github – Published: 2022-05-13 01:01 – Updated: 2022-05-13 01:01An exploitable denial of service vulnerability exists within the handling of challenge packets in FreeRDP 2.0.0-beta1+android11. A specially crafted challenge packet can cause the program termination leading to a denial of service condition. An attacker can compromise the server or use man in the middle to trigger this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2017-2838"
],
"database_specific": {
"cwe_ids": [
"CWE-190",
"CWE-20"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-04-24T19:29:00Z",
"severity": "MODERATE"
},
"details": "An exploitable denial of service vulnerability exists within the handling of challenge packets in FreeRDP 2.0.0-beta1+android11. A specially crafted challenge packet can cause the program termination leading to a denial of service condition. An attacker can compromise the server or use man in the middle to trigger this vulnerability.",
"id": "GHSA-mgp7-ggv4-38hf",
"modified": "2022-05-13T01:01:22Z",
"published": "2022-05-13T01:01:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-2838"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2017/dsa-3923"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0340"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/99942"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MGQF-P8JH-HMQ7
Vulnerability from github – Published: 2022-05-13 01:30 – Updated: 2022-05-13 01:30An integer overflow in the unprotected distributeToken function of a smart contract implementation for EETHER (EETHER), an Ethereum ERC20 token, will lead to an unauthorized increase of an attacker's digital assets.
{
"affected": [],
"aliases": [
"CVE-2018-11561"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-08-08T17:29:00Z",
"severity": "HIGH"
},
"details": "An integer overflow in the unprotected distributeToken function of a smart contract implementation for EETHER (EETHER), an Ethereum ERC20 token, will lead to an unauthorized increase of an attacker\u0027s digital assets.",
"id": "GHSA-mgqf-p8jh-hmq7",
"modified": "2022-05-13T01:30:17Z",
"published": "2022-05-13T01:30:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-11561"
},
{
"type": "WEB",
"url": "https://github.com/rootclay/Audit-of-smart-contracts/blob/master/0x00a0cbe98e4d110b0fa82646152d77babf2951d0/README.md"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MGX6-GP9V-3X55
Vulnerability from github – Published: 2022-05-14 03:28 – Updated: 2022-05-14 03:28In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Snapdragon Wear MDM9206, MDM9607, MDM9625, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 425, SD 430, SD 450, SD 615/16/SD 415, SD 617, SD 625, SD 650/52, SD 800, SD 808, SD 810, SD 820, SD 835, SD 845, SD 850, and SDX20, an integer overflow leading to buffer overflow can occur in a QuRT API function.
{
"affected": [],
"aliases": [
"CVE-2016-10491"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-04-18T14:29:00Z",
"severity": "CRITICAL"
},
"details": "In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Snapdragon Wear MDM9206, MDM9607, MDM9625, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 425, SD 430, SD 450, SD 615/16/SD 415, SD 617, SD 625, SD 650/52, SD 800, SD 808, SD 810, SD 820, SD 835, SD 845, SD 850, and SDX20, an integer overflow leading to buffer overflow can occur in a QuRT API function.",
"id": "GHSA-mgx6-gp9v-3x55",
"modified": "2022-05-14T03:28:12Z",
"published": "2022-05-14T03:28:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-10491"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2018-04-01"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/103671"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MH6X-WXV2-QM6F
Vulnerability from github – Published: 2023-03-01 12:30 – Updated: 2023-03-13 15:30A vulnerability was found in SerenityOS. It has been rated as critical. Affected by this issue is the function initialize_typed_array_from_array_buffer in the library Userland/Libraries/LibJS/Runtime/TypedArray.cpp. The manipulation leads to integer overflow. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The name of the patch is f6c6047e49f1517778f5565681fb64750b14bf60. It is recommended to apply a patch to fix this issue. VDB-222074 is the identifier assigned to this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2021-4327"
],
"database_specific": {
"cwe_ids": [
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-01T11:15:00Z",
"severity": "CRITICAL"
},
"details": "A vulnerability was found in SerenityOS. It has been rated as critical. Affected by this issue is the function initialize_typed_array_from_array_buffer in the library Userland/Libraries/LibJS/Runtime/TypedArray.cpp. The manipulation leads to integer overflow. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The name of the patch is f6c6047e49f1517778f5565681fb64750b14bf60. It is recommended to apply a patch to fix this issue. VDB-222074 is the identifier assigned to this vulnerability.",
"id": "GHSA-mh6x-wxv2-qm6f",
"modified": "2023-03-13T15:30:19Z",
"published": "2023-03-01T12:30:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4327"
},
{
"type": "WEB",
"url": "https://github.com/SerenityOS/serenity/commit/f6c6047e49f1517778f5565681fb64750b14bf60"
},
{
"type": "WEB",
"url": "https://devcraft.io/2021/02/11/serenityos-writing-a-full-chain-exploit.html"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.222074"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.222074"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Ensure that all protocols are strictly defined, such that all out-of-bounds behavior can be identified simply, and require strict conformance to the protocol.
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.
- If possible, choose a language or compiler that performs automatic bounds checking.
Mitigation MIT-4
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
- Use libraries or frameworks that make it easier to handle numbers without unexpected consequences.
- Examples include safe integer handling packages such as SafeInt (C++) or IntegerLib (C or C++). [REF-106]
Mitigation MIT-8
Strategy: Input Validation
- Perform input validation on any numeric input by ensuring that it is within the expected range. Enforce that the input meets both the minimum and maximum requirements for the expected range.
- Use unsigned integers where possible. This makes it easier to perform validation for integer overflows. When signed integers are required, ensure that the range check includes minimum values as well as maximum values.
Mitigation MIT-36
- Understand the programming language's underlying representation and how it interacts with numeric calculation (CWE-681). Pay close attention to byte size discrepancies, precision, signed/unsigned distinctions, truncation, conversion and casting between types, "not-a-number" calculations, and how the language handles numbers that are too large or too small for its underlying representation. [REF-7]
- Also be careful to account for 32-bit, 64-bit, and other potential differences that may affect the numeric representation.
Mitigation MIT-15
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Mitigation MIT-26
Strategy: Compilation or Build Hardening
Examine compiler warnings closely and eliminate problems with potential security implications, such as signed / unsigned mismatch in memory operations, or use of uninitialized variables. Even if the weakness is rarely exploitable, a single failure may lead to the compromise of the entire system.
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.