CVE-2025-49179
Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in x record extension
Severity Score
6.6
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track
*SSVC
Descriptions
A flaw was found in the X Record extension. The RecordSanityCheckRegisterClients function does not check for an integer overflow when computing request length, which allows a client to bypass length checks.
This update for xorg-x11-server fixes the following issues. Out-of-bounds access in X Rendering extension (Animated cursors). Integer overflow in Big Requests Extension. Data leak in XFIXES Extension 6. Unprocessed client request via bytes to ignore. Integer overflow in X Record extension. Integer overflow in RandR extension.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2025-06-03 CVE Reserved
- 2025-06-17 CVE Published
- 2025-07-15 CVE Updated
- 2025-08-11 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-190: Integer Overflow or Wraparound
CAPEC
References (30)
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
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| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Oracle Search vendor "Oracle" | Linux Search vendor "Oracle" for product "Linux" | * | - |
Affected
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| Red Hat Search vendor "Red Hat" | Enterprise Linux Search vendor "Red Hat" for product "Enterprise Linux" | * | - |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | * | - |
Affected
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| Redhat Search vendor "Redhat" | Rhel Aus Search vendor "Redhat" for product "Rhel Aus" | * | - |
Affected
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| Redhat Search vendor "Redhat" | Rhel E4s Search vendor "Redhat" for product "Rhel E4s" | * | - |
Affected
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| Redhat Search vendor "Redhat" | Rhel Eus Search vendor "Redhat" for product "Rhel Eus" | * | - |
Affected
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| Redhat Search vendor "Redhat" | Rhel Eus Long Life Search vendor "Redhat" for product "Rhel Eus Long Life" | * | - |
Affected
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| Redhat Search vendor "Redhat" | Rhel Tus Search vendor "Redhat" for product "Rhel Tus" | * | - |
Affected
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| Alma Search vendor "Alma" | Linux Search vendor "Alma" for product "Linux" | * | - |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | * | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | * | - |
Affected
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| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | * | - |
Affected
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| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | * | - |
Affected
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| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | * | - |
Affected
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| Oracle Search vendor "Oracle" | Linux Search vendor "Oracle" for product "Linux" | * | - |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | * | - |
Affected
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| Redhat Search vendor "Redhat" | Rhel Aus Search vendor "Redhat" for product "Rhel Aus" | * | - |
Affected
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| Redhat Search vendor "Redhat" | Rhel E4s Search vendor "Redhat" for product "Rhel E4s" | * | - |
Affected
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| Redhat Search vendor "Redhat" | Rhel Els Search vendor "Redhat" for product "Rhel Els" | * | - |
Affected
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| Redhat Search vendor "Redhat" | Rhel Eus Search vendor "Redhat" for product "Rhel Eus" | * | - |
Affected
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| Redhat Search vendor "Redhat" | Rhel Tus Search vendor "Redhat" for product "Rhel Tus" | * | - |
Affected
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| Suse Search vendor "Suse" | Sle-module-basesystem Search vendor "Suse" for product "Sle-module-basesystem" | * | - |
Affected
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| Suse Search vendor "Suse" | Sle-module-development-tools Search vendor "Suse" for product "Sle-module-development-tools" | * | - |
Affected
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| Suse Search vendor "Suse" | Sle-we Search vendor "Suse" for product "Sle-we" | * | - |
Affected
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| Suse Search vendor "Suse" | Sle Hpc-espos Search vendor "Suse" for product "Sle Hpc-espos" | * | - |
Affected
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| Suse Search vendor "Suse" | Sle Hpc-ltss Search vendor "Suse" for product "Sle Hpc-ltss" | * | - |
Affected
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| Suse Search vendor "Suse" | Sle Hpc Search vendor "Suse" for product "Sle Hpc" | * | - |
Affected
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| Suse Search vendor "Suse" | Sled Search vendor "Suse" for product "Sled" | * | - |
Affected
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| Suse Search vendor "Suse" | Sles-ltss-extended-security Search vendor "Suse" for product "Sles-ltss-extended-security" | * | - |
Affected
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| Suse Search vendor "Suse" | Sles-ltss Search vendor "Suse" for product "Sles-ltss" | * | - |
Affected
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| Suse Search vendor "Suse" | Sles Search vendor "Suse" for product "Sles" | * | - |
Affected
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| Suse Search vendor "Suse" | Sles Sap Search vendor "Suse" for product "Sles Sap" | * | - |
Affected
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| Suse Search vendor "Suse" | Suse-manager-proxy Search vendor "Suse" for product "Suse-manager-proxy" | * | - |
Affected
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| Suse Search vendor "Suse" | Suse-manager-server Search vendor "Suse" for product "Suse-manager-server" | * | - |
Affected
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