Common Weakness Enumeration
CWE-193
AllowedOff-by-one Error
Abstraction: Base · Status: Draft
A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.
256 vulnerabilities reference this CWE, most recent first.
CVE-2020-14508 (GCVE-0-2020-14508)
Vulnerability from cvelistv5 – Published: 2020-08-25 13:15 – Updated: 2024-09-16 16:33
VLAI
EPSS
VEX
Title
OFF-BY-ONE ERROR CWE-193
Summary
GateManager versions prior to 9.2c, The affected product is vulnerable to an off-by-one error, which may allow an attacker to remotely execute arbitrary code or cause a denial-of-service condition.
Severity
8.1 (High)
CWE
- CWE-193 - OFF-BY-ONE ERROR CWE-193
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-20-210-01 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Secomea | GateManager |
Affected:
All versions prior to 9.2c , < 9.2c
(custom)
|
Date Public
2020-07-28 00:00
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CVE-2020-10062 (GCVE-0-2020-10062)
Vulnerability from cvelistv5 – Published: 2020-06-05 17:37 – Updated: 2024-09-17 00:51
VLAI
EPSS
VEX
Title
Packet length decoding error in MQTT
Summary
An off-by-one error in the Zephyr project MQTT packet length decoder can result in memory corruption and possible remote code execution. NCC-ZEP-031 This issue affects: zephyrproject-rtos zephyr version 2.2.0 and later versions.
Severity
9 (Critical)
CWE
- CWE-193 - Off-by-one Error
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-84 | x_refsource_MISC |
| https://docs.zephyrproject.org/latest/security/vu… | x_refsource_MISC |
| https://github.com/zephyrproject-rtos/zephyr/pull… | x_refsource_MISC |
| https://research.nccgroup.com/2020/05/26/research… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zephyrproject-rtos | zephyr |
Affected:
2.2.0 , < unspecified
(custom)
|
Date Public
2020-05-25 00:00
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CVE-2019-10131 (GCVE-0-2019-10131)
Vulnerability from cvelistv5 – Published: 2019-04-30 18:01 – Updated: 2024-08-04 22:10
VLAI
EPSS
VEX
Summary
An off-by-one read vulnerability was discovered in ImageMagick before version 7.0.7-28 in the formatIPTCfromBuffer function in coders/meta.c. A local attacker may use this flaw to read beyond the end of the buffer or to crash the program.
Severity
6.5 (Medium)
CWE
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| https://github.com/ImageMagick/ImageMagick/commit… | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/108117 | vdb-entryx_refsource_BID |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| https://usn.ubuntu.com/4034-1/ | vendor-advisoryx_refsource_UBUNTU |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ImageMagick | ImageMagick |
Affected:
fixed in 7.0.7-28
|
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CVE-2019-8272 (GCVE-0-2019-8272)
Vulnerability from cvelistv5 – Published: 2019-03-09 00:00 – Updated: 2024-09-16 16:43
VLAI
EPSS
VEX
Summary
UltraVNC revision 1211 has multiple off-by-one vulnerabilities in VNC server code, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1212.
Severity
No CVSS data available.
CWE
- CWE-193 - Off-by-one Error
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://ics-cert.kaspersky.com/advisories/klcert-… | x_refsource_MISC |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_CONFIRM |
| https://www.us-cert.gov/ics/advisories/icsa-20-161-06 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kaspersky Lab | UltraVNC |
Affected:
1.2.2.3
|
Date Public
2019-03-01 00:00
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CVE-2019-8268 (GCVE-0-2019-8268)
Vulnerability from cvelistv5 – Published: 2019-03-09 00:00 – Updated: 2024-09-17 01:16
VLAI
EPSS
VEX
Summary
UltraVNC revision 1206 has multiple off-by-one vulnerabilities in VNC client code connected with improper usage of ClientConnection::ReadString function, which can potentially result code execution. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1207.
Severity
No CVSS data available.
CWE
- CWE-193 - Off-by-one Error
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://ics-cert.kaspersky.com/advisories/klcert-… | x_refsource_MISC |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_CONFIRM |
| https://www.us-cert.gov/ics/advisories/icsa-20-161-06 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kaspersky Lab | UltraVNC |
Affected:
1.2.2.3
|
Date Public
2019-03-01 00:00
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CVE-2017-2618 (GCVE-0-2017-2618)
Vulnerability from cvelistv5 – Published: 2018-07-27 19:00 – Updated: 2024-08-05 14:02
VLAI
EPSS
VEX
Summary
A flaw was found in the Linux kernel's handling of clearing SELinux attributes on /proc/pid/attr files before 4.9.10. An empty (null) write to this file can crash the system by causing the system to attempt to access unmapped kernel memory.
Severity
5.5 (Medium)
CWE
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://marc.info/?l=selinux&m=148588165923772&w=2 | mailing-listx_refsource_MLIST |
| https://www.debian.org/security/2017/dsa-3791 | vendor-advisoryx_refsource_DEBIAN |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2017:0932 | vendor-advisoryx_refsource_REDHAT |
| https://git.kernel.org/pub/scm/linux/kernel/git/s… | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2017:0933 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2017:0931 | vendor-advisoryx_refsource_REDHAT |
| http://www.securityfocus.com/bid/96272 | vdb-entryx_refsource_BID |
Date Public
2017-01-31 00:00
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CVE-2006-10003 (GCVE-0-2006-10003)
Vulnerability from cvelistv5 – Published: 2026-03-19 11:08 – Updated: 2026-07-15 01:28
VLAI
EPSS
VEX
Title
XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack
Summary
XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack.
In the case (stackptr == stacksize - 1), the stack will NOT be expanded. Then the new value will be written at location (++stackptr), which equals stacksize and therefore falls just outside the allocated buffer.
The bug can be observed when parsing an XML file with very deep element nesting
Severity
9.8 (Critical)
8.8 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
21 references
Impacted products
19 products
| Vendor | Product | Version | |
|---|---|---|---|
| TODDR | XML::Parser |
Affected:
0 , ≤ 2.47
(custom)
|
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:2.47-6.1.el10_1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.1 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:2.47-6.el10_0.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support |
Unaffected:
0:2.41-10.el7_9.1 , < *
(rpm)
cpe:/o:redhat:rhel_els:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:2.44-12.el8_10 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support |
Unaffected:
0:2.44-11.el8_2.1 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.2 |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support |
Unaffected:
0:2.44-11.el8_4.1 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.4 |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On |
Unaffected:
0:2.44-11.el8_4.1 , < *
(rpm)
cpe:/a:redhat:rhel_eus_long_life:8.4 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support |
Unaffected:
0:2.44-11.el8_6.1 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service |
Unaffected:
0:2.44-11.el8_6.1 , < *
(rpm)
cpe:/a:redhat:rhel_tus:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions |
Unaffected:
0:2.44-11.el8_6.1 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service |
Unaffected:
0:2.44-11.el8_8.1 , < *
(rpm)
cpe:/a:redhat:rhel_tus:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
Unaffected:
0:2.44-11.el8_8.1 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.46-9.1.el9_7 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions |
Unaffected:
0:2.46-9.el9_0.1 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.0 |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:2.46-9.el9_2.1 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2 |
|
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support |
Unaffected:
0:2.46-9.el9_4.1 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.4 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:2.46-9.el9_6.1 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
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"title": "XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack",
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{
"lang": "en",
"value": "Apply the patch that has been publicly available since 2006-06-13."
}
],
"x_generator": {
"engine": "cpansec-cna-tool 0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"assignerShortName": "CPANSec",
"cveId": "CVE-2006-10003",
"datePublished": "2026-03-19T11:08:04.341Z",
"dateReserved": "2026-03-16T22:52:39.890Z",
"dateUpdated": "2026-07-15T01:28:08.168Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
GHSA-24WV-MV5M-XV4H
Vulnerability from github – Published: 2023-03-26 21:30 – Updated: 2024-10-25 21:45
VLAI
Summary
redis-py Race Condition vulnerability
Details
redis-py before 4.5.3, as used in ChatGPT and other products, leaves a connection open after canceling an async Redis command at an inopportune time (in the case of a pipeline operation), and can send response data to the client of an unrelated request in an off-by-one manner. The fixed versions for this CVE Record are 4.3.6, 4.4.3, and 4.5.3, but are believed to be incomplete. CVE-2023-28859 has been assigned the issues caused by the incomplete fixes.
Severity
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "redis"
},
"ranges": [
{
"events": [
{
"introduced": "4.4.0"
},
{
"fixed": "4.4.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "redis"
},
"ranges": [
{
"events": [
{
"introduced": "4.5.0"
},
{
"fixed": "4.5.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "redis"
},
"ranges": [
{
"events": [
{
"introduced": "4.2.0"
},
{
"fixed": "4.3.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-28858"
],
"database_specific": {
"cwe_ids": [
"CWE-193"
],
"github_reviewed": true,
"github_reviewed_at": "2023-03-27T21:31:45Z",
"nvd_published_at": "2023-03-26T19:15:00Z",
"severity": "MODERATE"
},
"details": "redis-py before 4.5.3, as used in ChatGPT and other products, leaves a connection open after canceling an async Redis command at an inopportune time (in the case of a pipeline operation), and can send response data to the client of an unrelated request in an off-by-one manner. The fixed versions for this CVE Record are 4.3.6, 4.4.3, and 4.5.3, but [are believed to be incomplete](https://github.com/redis/redis-py/issues/2665). CVE-2023-28859 has been assigned the issues caused by the incomplete fixes.",
"id": "GHSA-24wv-mv5m-xv4h",
"modified": "2024-10-25T21:45:26Z",
"published": "2023-03-26T21:30:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28858"
},
{
"type": "WEB",
"url": "https://github.com/redis/redis-py/issues/2624"
},
{
"type": "WEB",
"url": "https://github.com/redis/redis-py/pull/2641"
},
{
"type": "WEB",
"url": "https://github.com/redis/redis-py/commit/d56baeb683fc1935cfa343fa2eeb0fa9bd955283"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/redis/PYSEC-2023-45.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/redis/redis-py"
},
{
"type": "WEB",
"url": "https://github.com/redis/redis-py/compare/v4.3.5...v4.3.6"
},
{
"type": "WEB",
"url": "https://github.com/redis/redis-py/compare/v4.4.2...v4.4.3"
},
{
"type": "WEB",
"url": "https://github.com/redis/redis-py/compare/v4.5.2...v4.5.3"
},
{
"type": "WEB",
"url": "https://github.com/redis/redis-py/releases/tag/v4.4.4"
},
{
"type": "WEB",
"url": "https://github.com/redis/redis-py/releases/tag/v4.5.4"
},
{
"type": "WEB",
"url": "https://openai.com/blog/march-20-chatgpt-outage"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "redis-py Race Condition vulnerability"
}
GHSA-294M-6544-VPRQ
Vulnerability from github – Published: 2024-05-03 15:30 – Updated: 2024-06-03 18:53
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
of: fdt: fix off-by-one error in unflatten_dt_nodes()
Commit 78c44d910d3e ("drivers/of: Fix depth when unflattening devicetree") forgot to fix up the depth check in the loop body in unflatten_dt_nodes() which makes it possible to overflow the nps[] buffer...
Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-48672"
],
"database_specific": {
"cwe_ids": [
"CWE-193"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-03T15:15:07Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: fdt: fix off-by-one error in unflatten_dt_nodes()\n\nCommit 78c44d910d3e (\"drivers/of: Fix depth when unflattening devicetree\")\nforgot to fix up the depth check in the loop body in unflatten_dt_nodes()\nwhich makes it possible to overflow the nps[] buffer...\n\nFound by Linux Verification Center (linuxtesting.org) with the SVACE static\nanalysis tool.",
"id": "GHSA-294m-6544-vprq",
"modified": "2024-06-03T18:53:45Z",
"published": "2024-05-03T15:30:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48672"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2133f451311671c7c42b5640d2b999326b39aa0e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2566706ac6393386a4e7c4ce23fe17f4c98d9aa0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2f945a792f67815abca26fa8a5e863ccf3fa1181"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ba6b9f7cc1108bad6e2c53b1d6e0156379188db7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cbdda20ce363356698835185801a58a28f644853"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e0e88c25f88b9805572263c9ed20f1d88742feaf"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ee4369260e77821602102dcc7d792de39a56365c"
}
],
"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-2CJ9-WJMR-5W57
Vulnerability from github – Published: 2024-03-11 15:31 – Updated: 2025-04-12 00:30
VLAI
Details
An off-by-one error flaw was found in the udevListInterfacesByStatus() function in libvirt when the number of interfaces exceeds the size of the names array. This issue can be reproduced by sending specially crafted data to the libvirt daemon, allowing an unprivileged client to perform a denial of service attack by causing the libvirt daemon to crash.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-1441"
],
"database_specific": {
"cwe_ids": [
"CWE-193"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-11T14:15:06Z",
"severity": "MODERATE"
},
"details": "An off-by-one error flaw was found in the udevListInterfacesByStatus() function in libvirt when the number of interfaces exceeds the size of the `names` array. This issue can be reproduced by sending specially crafted data to the libvirt daemon, allowing an unprivileged client to perform a denial of service attack by causing the libvirt daemon to crash.",
"id": "GHSA-2cj9-wjmr-5w57",
"modified": "2025-04-12T00:30:26Z",
"published": "2024-03-11T15:31:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-1441"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:2560"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2024-1441"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2263841"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/45FFKU3LODT345LAB5T4XZA5WKYMXJYU"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E6MVZO5GXDB7RHY6MS3ZXES3HPK34P3A"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20250411-0003"
}
],
"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"
}
]
}
Mitigation
Implementation
When copying character arrays or using character manipulation methods, the correct size parameter must be used to account for the null terminator that needs to be added at the end of the array. Some examples of functions susceptible to this weakness in C include strcpy(), strncpy(), strcat(), strncat(), printf(), sprintf(), scanf() and sscanf().
No CAPEC attack patterns related to this CWE.