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-2022-3821 (GCVE-0-2022-3821)
Vulnerability from cvelistv5 – Published: 2022-11-08 00:00 – Updated: 2025-05-02 18:12
VLAI
EPSS
VEX
Summary
An off-by-one Error issue was discovered in Systemd in format_timespan() function of time-util.c. An attacker could supply specific values for time and accuracy that leads to buffer overrun in format_timespan(), leading to a Denial of Service.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-193 - - Off-by-one Error
Assigner
References
7 references
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CVE-2022-3103 (GCVE-0-2022-3103)
Vulnerability from cvelistv5 – Published: 2022-09-26 14:51 – Updated: 2025-05-21 19:13
VLAI
EPSS
VEX
Summary
off-by-one in io_uring module.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/torvalds/linux/releases/tag/v6.0-rc3 | x_refsource_MISC |
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CVE-2021-44007 (GCVE-0-2021-44007)
Vulnerability from cvelistv5 – Published: 2021-12-14 12:06 – Updated: 2024-08-04 04:10
VLAI
EPSS
VEX
Summary
A vulnerability has been identified in JT2Go (All versions < V13.2.0.5), Teamcenter Visualization (All versions < V13.2.0.5). The Tiff_Loader.dll contains an off-by-one error in the heap while parsing specially crafted TIFF files. This could allow an attacker to cause a denial-of-service condition.
Severity
No CVSS data available.
CWE
- CWE-193 - Off-by-one Error
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | JT2Go |
Affected:
All versions < V13.2.0.5
|
|
| Siemens | Teamcenter Visualization |
Affected:
All versions < V13.2.0.5
|
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CVE-2021-23017 (GCVE-0-2021-23017)
Vulnerability from cvelistv5 – Published: 2021-06-01 12:28 – Updated: 2024-08-03 18:58
VLAI
EPSS
VEX
Summary
A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact.
Severity
No CVSS data available.
CWE
Assigner
References
14 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Nginx Web Server, Nginx Plus |
Affected:
Nginx Web Server versions 0.6.18 thru 1.20.0 before 1.20.1, Nginx plus versions R13 thru R23 before R23 P1. Nginx plus version R24 before R24 P1
|
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CVE-2021-21938 (GCVE-0-2021-21938)
Vulnerability from cvelistv5 – Published: 2022-04-14 19:55 – Updated: 2025-04-15 19:09
VLAI
EPSS
VEX
Summary
A heap-based buffer overflow vulnerability exists in the Palette box parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-193 - Off-by-one Error
Assigner
References
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CVE-2021-4070 (GCVE-0-2021-4070)
Vulnerability from cvelistv5 – Published: 2022-02-23 19:50 – Updated: 2024-08-03 17:16
VLAI
EPSS
VEX
Title
Off-by-one Error in v2fly/v2ray-core
Summary
Off-by-one Error in GitHub repository v2fly/v2ray-core prior to 4.44.0.
Severity
5.9 (Medium)
CWE
- CWE-193 - Off-by-one Error
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://huntr.dev/bounties/8da19456-4d89-41ef-978… | x_refsource_CONFIRM |
| https://github.com/v2fly/v2ray-core/commit/c1af2b… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| v2fly | v2fly/v2ray-core |
Affected:
unspecified , < 4.44.0
(custom)
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CVE-2021-3999 (GCVE-0-2021-3999)
Vulnerability from cvelistv5 – Published: 2022-08-24 00:00 – Updated: 2025-12-02 20:54
VLAI
EPSS
VEX
Summary
A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-193 - - Off-by-one Error
Assigner
References
8 references
Impacted products
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CVE-2021-3930 (GCVE-0-2021-3930)
Vulnerability from cvelistv5 – Published: 2022-02-18 17:50 – Updated: 2024-08-03 17:09
VLAI
EPSS
VEX
Summary
An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE SELECT commands in mode_sense_page() if the 'page' argument was set to MODE_PAGE_ALLS (0x3f). A malicious guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2020588 | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2022022… | x_refsource_CONFIRM |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
| https://security.gentoo.org/glsa/202208-27 | vendor-advisoryx_refsource_GENTOO |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
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CVE-2020-27793 (GCVE-0-2020-27793)
Vulnerability from cvelistv5 – Published: 2022-08-19 22:43 – Updated: 2024-08-04 16:25
VLAI
EPSS
VEX
Summary
An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c. This could allow an attacker to cause a crash, and perform a denail of service attack.
Severity
No CVSS data available.
CWE
- CWE-193 - - Off-by-one Error
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/radareorg/radare2/issues/16304 | x_refsource_MISC |
| https://github.com/radareorg/radare2/commit/ced02… | x_refsource_MISC |
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CVE-2020-14510 (GCVE-0-2020-14510)
Vulnerability from cvelistv5 – Published: 2020-08-25 13:19 – Updated: 2024-09-16 19:25
VLAI
EPSS
VEX
Title
OFF-BY-ONE ERROR CWE-193
Summary
GateManager versions prior to 9.2c, The affected product contains a hard-coded credential for telnet, allowing an unprivileged attacker to execute commands as root.
Severity
9.8 (Critical)
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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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.