Microsoft Windows 95/NT 4.0 IP Fragmentation Bonk denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows 95/NT 4.0. It has been declared as critical. The impacted element is an unknown function of the component IP Fragmentation Handler. The manipulation results in denial of service (Bonk). This vulnerability is identified as CVE-1999-0258. Additionally, an exploit exists. This vulnerability is historically impactful due to its background and the reception it garnered. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Microsoft Windows 95/NT 4.0 (Operating System). Affected is some unknown processing of the component IP Fragmentation Handler. The manipulation with an unknown input leads to a denial of service vulnerability (Bonk). CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The issue has been introduced in 08/24/1995. The weakness was released 02/13/1998. This vulnerability is traded as CVE-1999-0258. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/17/2026). This vulnerability has a historic impact due to its background and reception.

It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 904 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 10030 (TCP/IP IP Fragmentation Remote DoS (bonk)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Denial of Service and running in the context r.

Upgrading to version 98 or 2000 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (10030) and Vulnerability Center (SBV-397†). Entry connected to this vulnerability is available at VDB-14077. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

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
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Bonk
Class: Denial of service / Bonk
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 10030
Nessus Name: TCP/IP IP Fragmentation Remote DoS (bonk)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Windows 98/2000
McAfee IPS: 🔍
McAfee IPS Version: 🔍

Timelineinfo

08/24/1995 🔍
02/13/1998 +904 days 🔍
02/13/1998 +0 days 🔍
02/13/1998 +0 days 🔍
06/22/1999 +494 days 🔍
12/17/2002 +1274 days 🔍
06/18/2014 +4201 days 🔍
04/17/2026 +4321 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Status: Confirmed

CVE: CVE-1999-0258 (🔍)
GCVE (CVE): GCVE-0-1999-0258
GCVE (VulDB): GCVE-100-14076
Vulnerability Center: 397 - CVE Id, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/18/2014 23:56
Updated: 04/17/2026 08:57
Changes: 06/18/2014 23:56 (45), 05/06/2019 16:37 (25), 04/17/2026 08:57 (19)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!