Common Weakness Enumeration
CWE-191
AllowedInteger Underflow (Wrap or Wraparound)
Abstraction: Base · Status: Draft
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.
449 vulnerabilities reference this CWE, most recent first.
CVE-2026-107635 (GCVE-0-2026-107635)
Vulnerability from cvelistv5 – Published: 2026-10-08 14:10 – Updated: 2026-10-16 11:38
VLAI
EPSS
VEX
Title
Dislocker through 0.7.3 Out-of-Bounds Heap Read via VMK/FVEK Datum Size Underflow
Summary
Dislocker through 0.7.3 contains an integer underflow vulnerability in get_vmk() and get_fvek() that allows attackers to trigger out-of-bounds heap reads via crafted datum sizes. Attackers can supply a malicious BitLocker volume image with a datum_size smaller than the 36-byte AES-CCM header, causing hexdump() to over-read and crash dislocker.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 16:05 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
VulnCheck
CNA
References
5 references
| URL | Tags |
|---|---|
| https://github.com/Aorimn/dislocker/commit/070646… | patch |
| https://github.com/Aorimn/dislocker/blob/v0.7.3/s… | technical-description |
| https://github.com/Aorimn/dislocker/blob/v0.7.3/s… | technical-description |
| https://github.com/Aorimn/dislocker | product |
| https://www.vulncheck.com/advisories/dislocker-th… | third-party-advisory |
Date Public
2026-08-31 00:00
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CVE-2026-107614 (GCVE-0-2026-107614)
Vulnerability from cvelistv5 – Published: 2026-10-08 13:39 – Updated: 2026-10-08 14:01
VLAI
EPSS
VEX
Title
Integer underflow in TightVNC Server cursor shape trimming leads to out-of-bounds read
Summary
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Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 14:00 UTC
Assigner
securin
CNA
References
2 references
| URL | Tags |
|---|---|
| https://sourceforge.net/p/vnc-tight/bugs/1661/ | issue-tracking |
| https://www.tightvnc.com/whatsnew.php | release-notespatch |
Impacted products
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CVE-2026-106464 (GCVE-0-2026-106464)
Vulnerability from cvelistv5 – Published: 2026-10-14 17:41 – Updated: 2026-11-04 13:20
VLAI
EPSS
VEX
Title
Out-of-bounds read via an empty signature BIT STRING in NetX Secure X.509 parsing
Summary
In Eclipse ThreadX NetX Duo versions up to and including 6.5.2.202603, the NetX Secure X.509 parser accepts a certificate whose signature is an empty BIT STRING and records a signature length of 0xFFFFFFFF. A remote peer can present such a certificate during the TLS handshake, before authentication, and make the device read far outside the certificate buffer during signature verification, which is expected to fault.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 20:13 UTC
Assigner
eclipse
CNA
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse ThreadX NetX Duo |
Affected:
0 , ≤ 6.5.2.202603
(custom)
Unaffected: 6.5.2.202603a |
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CVE-2026-106437 (GCVE-0-2026-106437)
Vulnerability from cvelistv5 – Published: 2026-10-08 18:42 – Updated: 2026-10-08 19:20
VLAI
EPSS
VEX
Title
Out-of-bounds read and write via undersized BSON buffer reservation in MongoDB C Driver
Summary
The BSON buffer-reservation API in the MongoDB C Driver can record a length smaller than the five-byte BSON minimum. Later append or comparison operations can underflow unsigned length calculations and read or write outside the document buffer. An actor who can influence the length supplied by an embedding application can cause the application to terminate or read or corrupt adjacent process memory. Reaching this issue requires the application to pass an undersized value to bson_reserve_buffer and then perform an affected operation.
Severity
6.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:20 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
mongodb
CNA
References
1 reference
Impacted products
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CVE-2026-106429 (GCVE-0-2026-106429)
Vulnerability from cvelistv5 – Published: 2026-10-08 18:54 – Updated: 2026-10-08 19:30
VLAI
EPSS
VEX
Title
Application denial of service via malformed KMS endpoint in MongoDB libmongocrypt
Summary
An integer underflow in the KMS endpoint-parsing logic of MongoDB libmongocrypt can cause an allocation failure that terminates the application process. This can occur when an authenticated user modifies a key document in the key vault collection, or when an application accepts a KMS endpoint containing a colon after its path or query during key creation. The issue does not access memory outside its allocated bounds.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:29 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
mongodb
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | libmongocrypt |
Affected:
1.1.0 , < 1.20.5
(semver)
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CVE-2026-103636 (GCVE-0-2026-103636)
Vulnerability from cvelistv5 – Published: 2026-10-10 10:23 – Updated: 2026-10-16 15:32
VLAI
EPSS
VEX
Title
Apache DataSketches: datasketches-cpp: Out-of-bounds read in VarOpt union deserialization allows denial of service via a truncated sketch
Summary
Out-of-bounds read in the VarOpt union deserialization of Apache DataSketches C++ (repo: datasketches-cpp).
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Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 15:31 UTC
Assigner
apache
CNA
References
3 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/znn94s463w7wy125k… | vendor-advisory |
| https://github.com/apache/datasketches-cpp/releas… | release-notes |
| http://www.openwall.com/lists/oss-security/2026/10/10/6 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache DataSketches |
Affected:
2.0.0-incubating , ≤ 5.2.0
(semver)
|
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CVE-2026-103411 (GCVE-0-2026-103411)
Vulnerability from cvelistv5 – Published: 2026-10-28 16:37 – Updated: 2026-11-05 19:06
VLAI
EPSS
VEX
Title
Session Smart Router: A malicious DHCP server causes information disclosure and a service crash during DHCP option parsing
Summary
An Integer Underflow vulnerability in DhcpMessageDecoder in Juniper Networks Session Smart Router allows an attacker with local network access to cause information disclosure and a denial of service via a malicious DHCP reply.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 19:06 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
juniper
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA112183 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Session Smart Router |
Affected:
0 , < 7.0.5
(custom)
Affected: 7.1.0 , < 7.1.7 (custom) Affected: 7.2.0 , < 7.2.3 (custom) |
Date Public
2026-10-28 16:00
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CVE-2026-102714 (GCVE-0-2026-102714)
Vulnerability from cvelistv5 – Published: 2026-09-29 17:41 – Updated: 2026-11-04 13:06
VLAI
EPSS
VEX
Title
ICMPv6 option validation accepts a trailing byte residue, sending the Router Advertisement, Neighbor Solicitation, Neighbor Advertisement and Redirect option walkers past the packet or into a permanent loop
Summary
In Eclipse ThreadX NetX Duo versions up to and including 6.5.2.202603, built with IPv6, the ICMPv6 option validator accepts an option area that ends in a one- or two-byte residue, and the Router Advertisement, Neighbor Solicitation, Neighbor Advertisement and Redirect handlers then walk it without length checks. A host on the local link can send one such message to make the IP thread read past the packet or loop forever, and can place off-packet memory in the neighbor cache.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 18:42 UTC
CWE
Assigner
eclipse
CNA
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse ThreadX NetX Duo |
Affected:
0 , ≤ 6.5.2.202603
(custom)
Unaffected: 6.5.2.202603a (custom) |
Date Public
2026-11-04 13:04
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CVE-2026-102192 (GCVE-0-2026-102192)
Vulnerability from cvelistv5 – Published: 2026-10-13 19:01 – Updated: 2026-10-31 18:12
VLAI
EPSS
VEX
Title
Windows Failover Cluster Denial of Service Vulnerability
Summary
Integer underflow (wrap or wraparound) in Windows Failover Cluster allows an unauthorized attacker to deny service over a network.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 21:17 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
microsoft
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.9376
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.5761
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.33650
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.33650
(custom)
|
Date Public
2026-10-13 14:00
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CVE-2026-102168 (GCVE-0-2026-102168)
Vulnerability from cvelistv5 – Published: 2026-10-06 19:40 – Updated: 2026-10-06 20:06
VLAI
EPSS
VEX
Title
Security Advisory 0194
Summary
On affected Arista Wi-Fi access points with Captive Portal enabled, an unauthenticated wireless client connected to a Captive-Portal-enabled SSID can crash the portal service with a crafted HTTP request. This results in a temporary denial of service until the service automatically restarts. Remote code execution is not possible.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 20:06 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
Arista
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.arista.com/en/support/advisories-noti… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Arista Networks | Wi-Fi Access Points |
Affected:
22.0.0 , ≤ 22.0.1F-32
(custom)
Affected: 21.3.0 , ≤ 21.3.0M-13 (custom) Affected: 1.0.0 , < 21.3.0 (custom) |
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.