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Vulnerability Details :

CVE-2023-46849

Summary
Assigner-OpenVPN
Assigner Org ID-36a55730-e66d-4d39-8ca6-3c3b3017965e
Published At-11 Nov, 2023 | 00:05
Updated At-11 Jun, 2025 | 14:30
Rejected At-
Credits

Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:OpenVPN
Assigner Org ID:36a55730-e66d-4d39-8ca6-3c3b3017965e
Published At:11 Nov, 2023 | 00:05
Updated At:11 Jun, 2025 | 14:30
Rejected At:
▼CVE Numbering Authority (CNA)

Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.

Affected Products
Vendor
OpenVPN
Product
OpenVPN 2 (Community)
Default Status
unaffected
Versions
Affected
  • From 2.6.0 through 2.6.6 (minor release)
Vendor
OpenVPN
Product
Access Server
Platforms
  • Linux
Default Status
unaffected
Versions
Affected
  • From 2.11.0 through 2.11.3 (patch release)
  • From 2.12.0 through 2.12.1 (patch release)
Problem Types
TypeCWE IDDescription
CWECWE-369CWE-369 Divide By Zero
Type: CWE
CWE ID: CWE-369
Description: CWE-369 Divide By Zero
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://community.openvpn.net/openvpn/wiki/CVE-2023-46849
N/A
https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/
N/A
https://www.debian.org/security/2023/dsa-5555
N/A
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/
N/A
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/
N/A
Hyperlink: https://community.openvpn.net/openvpn/wiki/CVE-2023-46849
Resource: N/A
Hyperlink: https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/
Resource: N/A
Hyperlink: https://www.debian.org/security/2023/dsa-5555
Resource: N/A
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/
Resource: N/A
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://community.openvpn.net/openvpn/wiki/CVE-2023-46849
x_transferred
https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/
x_transferred
https://www.debian.org/security/2023/dsa-5555
x_transferred
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/
x_transferred
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/
x_transferred
Hyperlink: https://community.openvpn.net/openvpn/wiki/CVE-2023-46849
Resource:
x_transferred
Hyperlink: https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/
Resource:
x_transferred
Hyperlink: https://www.debian.org/security/2023/dsa-5555
Resource:
x_transferred
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/
Resource:
x_transferred
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/
Resource:
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@openvpn.net
Published At:11 Nov, 2023 | 01:15
Updated At:11 Jun, 2025 | 15:15

Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Secondary3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Type: Primary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CPE Matches
openvpn
openvpn
>>openvpn>>Versions from 2.6.0(inclusive) to 2.6.6(inclusive)
cpe:2.3:a:openvpn:openvpn:*:*:*:*:community:*:*:*
openvpn
openvpn
>>openvpn_access_server>>Versions from 2.11.0(inclusive) to 2.11.3(inclusive)
cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:*
openvpn
openvpn
>>openvpn_access_server>>2.12.0
cpe:2.3:a:openvpn:openvpn_access_server:2.12.0:*:*:*:*:*:*:*
openvpn
openvpn
>>openvpn_access_server>>2.12.1
cpe:2.3:a:openvpn:openvpn_access_server:2.12.1:*:*:*:*:*:*:*
Debian GNU/Linux
debian
>>debian_linux>>12.0
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
Fedora Project
fedoraproject
>>fedora>>39
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-369Secondarysecurity@openvpn.net
CWE-369Primarynvd@nist.gov
CWE ID: CWE-369
Type: Secondary
Source: security@openvpn.net
CWE ID: CWE-369
Type: Primary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://community.openvpn.net/openvpn/wiki/CVE-2023-46849security@openvpn.net
Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/security@openvpn.net
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/security@openvpn.net
N/A
https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/security@openvpn.net
Vendor Advisory
https://www.debian.org/security/2023/dsa-5555security@openvpn.net
Third Party Advisory
https://community.openvpn.net/openvpn/wiki/CVE-2023-46849af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/af854a3a-2127-422b-91ae-364da2661108
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/af854a3a-2127-422b-91ae-364da2661108
N/A
https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.debian.org/security/2023/dsa-5555af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Hyperlink: https://community.openvpn.net/openvpn/wiki/CVE-2023-46849
Source: security@openvpn.net
Resource:
Vendor Advisory
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/
Source: security@openvpn.net
Resource:
Mailing List
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/
Source: security@openvpn.net
Resource: N/A
Hyperlink: https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/
Source: security@openvpn.net
Resource:
Vendor Advisory
Hyperlink: https://www.debian.org/security/2023/dsa-5555
Source: security@openvpn.net
Resource:
Third Party Advisory
Hyperlink: https://community.openvpn.net/openvpn/wiki/CVE-2023-46849
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Vendor Advisory
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L3FS46ANNTAVLIQY56ZKGM5CBTRVBUNE/
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Mailing List
Hyperlink: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O54I7D753V6PU6XBU26FEROD2DSHEJQ4/
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A
Hyperlink: https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Vendor Advisory
Hyperlink: https://www.debian.org/security/2023/dsa-5555
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Third Party Advisory

Change History

0
Information is not available yet

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