Weakness · CWE-191
Integer Underflow (Wrap or Wraparound)
A subtraction goes below zero and wraps to a huge value, typically leading to an oversized copy.
Official CWE name. Full definition on cwe.mitre.org
In the news
CVEs with this weakness that SecurityTabs has covered, newest first.
How attackers exploit it
Typical ATT&CK techniques for this class of weakness across CISA's Known Exploited Vulnerabilities (CTID mapping).
How it's exploited
What the attacker gets
What they do next
Controls that stop it
NIST SP 800-53 controls that mitigate the most of those techniques.
- CM-2Baseline ConfigurationConfiguration Management · mitigates 7 techniques
- SI-3Malicious Code ProtectionSystem and Information Integrity · mitigates 7 techniques
- SI-4System MonitoringSystem and Information Integrity · mitigates 7 techniques
- CM-6Configuration SettingsConfiguration Management · mitigates 6 techniques
- AC-6Least PrivilegeAccess Control · mitigates 5 techniques
- CA-7Continuous MonitoringSecurity Assessment and Authorization · mitigates 5 techniques
- AC-3Access EnforcementAccess Control · mitigates 4 techniques
- AC-4Information Flow EnforcementAccess Control · mitigates 4 techniques
- CM-7Least FunctionalityConfiguration Management · mitigates 4 techniques
- CM-8System Component InventoryConfiguration Management · mitigates 4 techniques
Weaknesses from each CVE's CVE Record (CWE, © MITRE). Techniques: MITRE ATT&CK®. Technique ↔ control and CVE ↔ technique links: Center for Threat-Informed Defense Mappings Explorer (NIST SP 800-53 rev5; CISA KEV). Plain-language explainers are SecurityTabs editorial.