Heap overflow via 32-bit length wrap of the URI username in Windows Kerberos auth message wrapping
CVSS score
5.7
EPSS probability
—
Risk score
0.6
Published
2 h ago
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Vulnerability description
DayBreach AI Explanation
Verified against sourcesSources read
2
Source agreement
0/2
Evidence confidence
%44
Short explanation
A 32-bit integer wraparound in MongoDB C Driver Windows Kerberos authentication code can cause a heap overflow, potentially leading to denial of service in client applications.
A party able to control client-side configuration can trigger an out-of-bounds buffer write, causing memory corruption and denial of service of the client application.
What should be done?
- Follow vendor advisories
- Review the corresponding GitHub releases
- Inspect connection configuration settings
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Chain of evidence and sources
CVE-2026-114645, MongoDB C Driver bileşeninin Windows Kerberos/SSPI kimlik doğrulama kodunda 32-bit tamsayı sarmalamasından kaynaklanır.
Yayımcı kaynaklar arasında CVSS taban puanı ve vektör değerleri konusunda farklılıklar bulunmaktadır.
Show the technical text from the sources
A 32-bit integer wraparound in the MongoDB C Driver's Windows-only Kerberos/SSPI authentication code can cause an undersized heap buffer to be allocated when an excessively long credential value is supplied in the client's connection configuration. A party able to control that client-side configuration, in conjunction with the affected authentication mechanism, can cause the driver to write outside the bounds of the allocated buffer. This may result in corruption of client process memory and denial of service of the client application. The issue affects only client builds compiled with the Windows-native authentication backend.
CVSS vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
CWE: CWE-190
This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-114645 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | mongodb | C# Driver | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 5.7 | CVSS V4_0 | MEDIUM | CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N | CVE CNA |
| 5.7 | CVSS V40 | MEDIUM | CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD |
| 5.2 | CVSS V3_1 | MEDIUM | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H | CVE CNA |
| 5.2 | CVSS V31 | MEDIUM | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-114645 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-114645 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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