CWE-193

Off-by-one Error

A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.

CVE-2026-6861 (GCVE-0-2026-6861)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:39 – Updated: 2026-04-22 15:59
VLAI
Title
Emacs: emacs: memory corruption vulnerability when processing svg css
Summary
A flaw was found in GNU Emacs. This vulnerability, a memory corruption issue, occurs when Emacs processes specially crafted SVG (Scalable Vector Graphics) CSS (Cascading Style Sheets) data. A local user could exploit this by convincing a victim to open a malicious SVG file, which may lead to a denial of service (DoS) or potentially information disclosure.
Severity
6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
CWE
Assigner
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-6861 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2459992 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-04-19 00:00
Credits
Red Hat would like to thank Gaetano Zappulla (Tinexta Defence SpA) for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2026-7572 (GCVE-0-2026-7572)

Vulnerability from cvelistv5 – Published: 2026-05-06 02:38 – Updated: 2026-05-06 16:42
VLAI
Title
Velociraptor EVTX Parser — Process Crash via Crafted .evtx File
Summary
An off-by-one error (CWE-193) in the ConsumeUnit16Array and ConsumeUnit64Array functions in Velocidex Velociraptor before version 0.76.5 on Windows and Linux allows a local attacker to cause a Denial of Service (DoS) via a process crash by providing a specially crafted .evtx file to the parse_evtx VQL plugin.
Severity
4.4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
CWE
Assigner
References
Impacted products
Vendor Product Version
Velocidex velociraptor Affected: 0 , < 0.76.5 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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Mitigation

Phase: Implementation

Description:

  • 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.

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