OpenBSD 2.5 Kernel IPsec missing encryption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenBSD 2.5 and classified as problematic. This impacts an unknown function of the component Kernel. The manipulation results in missing encryption (IPsec). This vulnerability is known as CVE-1999-0727. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in OpenBSD 2.5 (Operating System). Affected is an unknown code of the component Kernel. The manipulation with an unknown input leads to a missing encryption vulnerability (IPsec). CWE is classifying the issue as CWE-311. The product does not encrypt sensitive or critical information before storage or transmission. This is going to have an impact on confidentiality. CVE summarizes:

A kernel leak in the OpenBSD kernel allows IPsec packets to be sent unencrypted.

The weakness was published 08/06/1999 (Website). The advisory is shared for download at osvdb.org. This vulnerability is traded as CVE-1999-0727. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1600.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (3342) and OSVDB (6127†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: IPsec
Class: Missing encryption / IPsec
CWE: CWE-311 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/06/1999 🔍
08/06/1999 +0 days 🔍
04/09/2004 +1707 days 🔍
06/21/2014 +3725 days 🔍
04/19/2026 +4320 days 🔍

Sourcesinfo

Advisory: osvdb.org⛔
Status: Confirmed

CVE: CVE-1999-0727 (🔍)
GCVE (CVE): GCVE-0-1999-0727
GCVE (VulDB): GCVE-100-14760
X-Force: 3342
OSVDB: 6127 - OpenBSD Kernel Leak IPsec Packet Encryption Failure

Entryinfo

Created: 06/21/2014 18:03
Updated: 04/19/2026 09:47
Changes: 06/21/2014 18:03 (44), 05/21/2018 10:08 (8), 04/19/2026 09:47 (18)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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