Common Weakness Enumeration

CWE-191

Allowed

Integer Underflow (Wrap or Wraparound)

Abstraction: Base · Status: Draft

API response cwe.mitre.org

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.

811 vulnerabilities reference this CWE, most recent first.

CVE-2026-107635 (GCVE-0-2026-107635)

Vulnerability from cvelistv5 – Published: 2026-10-08 14:10 – Updated: 2026-10-08 16:05
VLAI
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
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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 under the mitre root
CNA scorecard B 84/100 over 5285 records in the last 180 days details
References
Impacted products
Vendor Product Version
Aorimn dislocker Affected: 0 , ≤ 0.7.3 (custom)
Create a notification for this product.
Date Public
2026-08-31 00:00
Credits
Tristan Madani (@TristanInSec), Talence Security
Show details on NVD website
To clipboard 

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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
Title
Integer underflow in TightVNC Server cursor shape trimming leads to out-of-bounds read
Summary
An integer underflow in WinCursorShapeUtils::trimTransparent() in GlavSoft TightVNC Server for Windows before 2.8.88 allows a local authenticated user to crash the server, and potentially read out-of-bounds memory, by causing a cursor shape with a width or height of zero to be processed on the DXGI capture path. The loop bound width - 1 wraps to 0xFFFFFFFF, producing an access roughly 4 GB beyond the 64 KB cursor buffer; a monochrome cursor of height 1 also becomes 0 because getCursorHeight() halves the height in place.
Severity
6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 14:00 UTC
CWE
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
  • CWE-125 - Out-of-bounds Read
Assigner
securin CNA under the mitre root
CNA scorecard B 80/100 over 70 records in the last 180 days details
References
Impacted products
Vendor Product Version
GlavSoft TightVNC Affected: 0 , < 2.8.88 (custom)
Create a notification for this product.
Credits
Arjun Basnet from Securin
Show details on NVD website
To clipboard 

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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
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
5.9 (Medium)
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
6.2 (Medium)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
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 under the mitre root
CNA scorecard C 70/100 over 200 records in the last 180 days details
References
Impacted products
Vendor Product Version
MongoDB C Driver Affected: 1.4.0 , < 1.30.13 (semver)
Affected: 2.0.0 , < 2.5.6 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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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
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
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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 under the mitre root
CNA scorecard C 70/100 over 200 records in the last 180 days details
References
Impacted products
Vendor Product Version
MongoDB libmongocrypt Affected: 1.1.0 , < 1.20.5 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-102714 (GCVE-0-2026-102714)

Vulnerability from cvelistv5 – Published: 2026-09-29 17:41 – Updated: 2026-09-29 18:43
VLAI
Summary
`_nx_icmpv6_validate_options()` scans the option area with `while (length > 2)` (`common/src/nx_icmpv6_validate_options.c:79`). An area whose size leaves a one- or two-byte residue exits the loop with that tail unexamined; the residue is not negative, so the function returns `NX_SUCCESS`. Its zero-length rejection never sees those bytes. Every consumer then re-walks the same area, reading a two-byte option header at the residue and subtracting `nx_icmpv6_option_length << 3` with no zero check and no remaining-length check. Three outcomes follow, selected by bytes the attacker controls. **Zero length byte.** The walker subtracts zero and advances zero. All four handlers loop forever — `_nx_icmpv6_process_ra` (`nx_icmpv6_process_ra.c:245, :528`), `_nx_icmpv6_process_ns` (`:251, :329`), `_nx_icmpv6_process_na` (`:147, :156`) and `_nx_icmpv6_process_redirect` (`:247, :350`). The walk runs in the IP thread, which is the highest-priority thread and does not yield inside the loop, so the system stops until a watchdog reset and the frame can be replayed after each one. **Non-zero length byte on a short residue.** The three unsigned counters underflow — `2 - 8` becomes `0xFFFFFFFA` — and the walk continues past the packet buffer, reading until it faults or meets a zero length byte and freezes. The Router Advertisement counter is signed and exits cleanly in this case. **One-byte residue.** The walker reads a two-byte option header, over-reading one byte. During a runaway walk, stray bytes parsing as a link-layer address option are copied into the neighbor cache (`nx_icmpv6_process_ns.c:280, :293`) and subsequently used as the destination MAC for frames to that neighbour, placing off-packet memory on the link. Confirmed by inspection, not reproduced.
Severity
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 18:42 UTC
CWE
  • CWE-125 - Out-of-bounds Read
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
  • CWE-1287 - Improper Validation of Specified Type of Input
Assigner
eclipse CNA under the mitre root
CNA scorecard C 64/100 over 113 records in the last 180 days details
References
Impacted products
Vendor Product Version
Eclipse Foundation NetX Duo Affected: 0 , ≤ 6.5.1.202602 (semver)
Create a notification for this product.
Credits
Microsvuln L0stHeart
Show details on NVD website
To clipboard 

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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
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
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
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 under the mitre root
CNA scorecard B 87/100 over 89 records in the last 180 days details
References
Impacted products
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)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-95958 (GCVE-0-2026-95958)

Vulnerability from cvelistv5 – Published: 2026-09-23 02:45 – Updated: 2026-09-23 17:49 X_Open Source
VLAI
Title
JusticeRage Manalyze PE Parser pe.cpp _parse_relocations integer underflow
Summary
A security flaw has been discovered in JusticeRage Manalyze 1.0.0. Impacted is the function PE::_parse_relocations of the file manape/pe.cpp of the component PE Parser. Performing a manipulation of the argument BlockSize results in integer underflow. The attack requires a local approach. The patch is named c372b6bbca9d8c63812be50596fefa4a79c65fd0. It is recommended to apply a patch to fix this issue.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 17:49 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3741 records in the last 180 days details
References
Impacted products
Vendor Product Version
JusticeRage Manalyze Affected: 1.0.0
    cpe:2.3:a:justicerage:manalyze:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
akbarov (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-94090 (GCVE-0-2026-94090)

Vulnerability from cvelistv5 – Published: 2026-09-20 22:00 – Updated: 2026-09-21 19:45 X_Open Source
VLAI
Title
JusticeRage Manalyze PE Parser pe.cpp _parse_debug integer underflow
Summary
A security flaw has been discovered in JusticeRage Manalyze 1.0.0. The affected element is the function PE::_parse_debug of the file manape/pe.cpp of the component PE Parser. The manipulation of the argument misc.Length results in integer underflow. The attack may be performed from remote. The patch is identified as 3e299685759f4f767088871de58c5d07f98ee382. A patch should be applied to remediate this issue.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
6.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 19:45 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3741 records in the last 180 days details
References
Impacted products
Vendor Product Version
JusticeRage Manalyze Affected: 1.0.0
    cpe:2.3:a:justicerage:manalyze:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
akbarov (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-93599 (GCVE-0-2026-93599)

Vulnerability from cvelistv5 – Published: 2026-09-18 13:20 – Updated: 2026-09-18 14:15
VLAI
Title
rustls-webpki before 0.103.13 Panic via empty BIT STRING
Summary
rustls-webpki through 0.103.12 (and 0.104.0-alpha releases before 0.104.0-alpha.7) contains a reachable panic in bit_string_flags() in src/der.rs. The input guard fails to reject a named-bit BIT STRING whose content is exactly [0x00] (zero padding bits and no data bytes), so raw_bits.len() - 1 underflows on the empty slice and the subsequent index operation panics (subtract-with-overflow in debug, index-out-of-bounds in release). The condition is reachable through the public API BorrowedCertRevocationList::from_der() when a CRL contains an issuingDistributionPoint extension with such an onlySomeReasons value. Exploitation requires an application that explicitly opts in to CRL revocation checking by passing RevocationOptions to verify_for_usage() and that parses CRL bytes obtained from a source the attacker can influence; the default rustls configuration, which does not use RevocationOptions, is unaffected. A crafted CRL causes a denial of service via the panic. Fixed in 0.103.13 and 0.104.0-alpha.7.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 14:04 UTC
CWE
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5285 records in the last 180 days details
References
Impacted products
Vendor Product Version
rustls webpki Affected: 0 , < 0.103.13 (semver)
Affected: 0.104.0-alpha.1 , < 0.104.0-alpha.7 (semver)
Create a notification for this product.
Date Public
2026-04-21 00:00
Credits
tynus3
Show details on NVD website
To clipboard 

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CVE-2026-93395 (GCVE-0-2026-93395)

Vulnerability from cvelistv5 – Published: 2026-09-17 20:34 – Updated: 2026-09-18 14:31
VLAI
Title
Integer Underflow → Heap Out-of-Bounds Read in `bson_new_from_buffer()
Summary
A missing lower-bound validation in the bson_new_from_buffer() function of libbson allows an integer underflow when processing BSON data with a zero-length prefix. The function reads a 32-bit document length from the input buffer but does not verify that the value is at least 5 (the minimum valid BSON document size) before using it in an array index calculation. When the length field is zero, the expression used to check the document's null terminator wraps to UINT32_MAX, causing a heap out-of-bounds read that crashes the process. An unauthorized party who can supply crafted BSON input to an application using this API can cause a denial of service.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 14:27 UTC
CWE
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
mongodb CNA under the mitre root
CNA scorecard C 70/100 over 200 records in the last 180 days details
References
Impacted products
Vendor Product Version
MongoDB Inc. C Driver Affected: 2.0.0 , < 2.3.1 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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No mitigation information available for this CWE.

No CAPEC attack patterns related to this CWE.

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