Linux Kernel 2.6.20.1 rpcbind authentication spoofing

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel 2.6.20.1. It has been rated as critical. This issue affects some unknown processing of the component rpcbind. Performing a manipulation results in authentication spoofing. This vulnerability is cataloged as CVE-1999-0461. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.20.1 (Operating System). It has been classified as very critical. This affects an unknown function of the component rpcbind. The manipulation with an unknown input leads to a authentication spoofing vulnerability. CWE is classifying the issue as CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Versions of rpcbind including Linux, IRIX, and Wietse Venema's rpcbind allow a remote attacker to insert and delete entries by spoofing a source address.

The issue has been introduced in 02/05/2007. The weakness was shared 01/28/1999. This vulnerability is uniquely identified as CVE-1999-0461. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/18/2026).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (2308), SecurityFocus (BID 82863†) and Vulnerability Center (SBV-56651†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Linux Kernel
  • SGI IRIX

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
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

Class: Authentication spoofing
CWE: CWE-290 / CWE-287
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: 🔍
ISS Proventia IPS: 🔍

Timelineinfo

01/27/1999 🔍
01/27/1999 +0 days 🔍
01/28/1999 +0 days 🔍
01/28/1999 +0 days 🔍
02/05/2007 +2930 days 🔍
06/20/2014 +2692 days 🔍
02/16/2016 +606 days 🔍
04/18/2026 +3713 days 🔍

Sourcesinfo

Vendor: kernel.org

Status: Confirmed

CVE: CVE-1999-0461 (🔍)
GCVE (CVE): GCVE-0-1999-0461
GCVE (VulDB): GCVE-100-14469
X-Force: 2308
SecurityFocus: 82863 - Linux Kernel CVE-1999-0461 Remote Security Vulnerability
Vulnerability Center: 56651 - Linux Kernel Remote Security Bypass by Source Address Spoofing in rpcbind, Critical

Entryinfo

Created: 06/20/2014 14:21
Updated: 04/18/2026 11:09
Changes: 06/20/2014 14:21 (56), 08/23/2018 08:12 (2), 04/18/2026 11:09 (19)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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