VAR-200604-0324
Vulnerability from variot - Updated: 2025-04-03 22:16Cisco IOS XR, when configured for Multi Protocol Label Switching (MPLS) and running on Cisco CRS-1 routers, allows remote attackers to cause a denial of service (Modular Services Cards (MSC) crash or "MPLS packet handling problems") via certain MPLS packets, as identified by Cisco bug IDs (1) CSCsd15970 and (2) CSCsd55531. Cisco IOS XR The denial of service (DoS) There is a vulnerability that can be exploited.Denial of service by third party (DoS) May be in a state. A successful attack results in a denial-of-service condition for traffic that is being switched on an affected Modular Services Card (MSC) or line card. A sustained denial-of-service condition can also arise from repeated attacks. Cisco IOS XR Software, a member of the Cisco IOS Software family, uses a microkernel-based distributed operating system infrastructure. Cisco IOS XR runs on Cisco CRS-1 and Cisco 12000 series routers. MPLS packets are forwarded through the MPLS network, so the packets that trigger this vulnerability can be sent from remote systems in the MPLS network. Such packets cannot be received on interfaces that are not configured with MPLS.
Successful exploitation requires that MPLS has been configured on the network device.
SOLUTION: Apply patches (see patch matrix in vendor advisory).
PROVIDED AND/OR DISCOVERED BY: Reported by the vendor.
ORIGINAL ADVISORY: Cisco: http://www.cisco.com/warp/public/707/cisco-sa-20060419-xr.shtml
About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.
Subscribe: http://secunia.com/secunia_security_advisories/
Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/
Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor.
Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org
Show details on source website
{
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
"affected_products": {
"@id": "https://www.variotdbs.pl/ref/affected_products"
},
"configurations": {
"@id": "https://www.variotdbs.pl/ref/configurations"
},
"credits": {
"@id": "https://www.variotdbs.pl/ref/credits"
},
"cvss": {
"@id": "https://www.variotdbs.pl/ref/cvss/"
},
"description": {
"@id": "https://www.variotdbs.pl/ref/description/"
},
"exploit_availability": {
"@id": "https://www.variotdbs.pl/ref/exploit_availability/"
},
"external_ids": {
"@id": "https://www.variotdbs.pl/ref/external_ids/"
},
"iot": {
"@id": "https://www.variotdbs.pl/ref/iot/"
},
"iot_taxonomy": {
"@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
},
"patch": {
"@id": "https://www.variotdbs.pl/ref/patch/"
},
"problemtype_data": {
"@id": "https://www.variotdbs.pl/ref/problemtype_data/"
},
"references": {
"@id": "https://www.variotdbs.pl/ref/references/"
},
"sources": {
"@id": "https://www.variotdbs.pl/ref/sources/"
},
"sources_release_date": {
"@id": "https://www.variotdbs.pl/ref/sources_release_date/"
},
"sources_update_date": {
"@id": "https://www.variotdbs.pl/ref/sources_update_date/"
},
"threat_type": {
"@id": "https://www.variotdbs.pl/ref/threat_type/"
},
"title": {
"@id": "https://www.variotdbs.pl/ref/title/"
},
"type": {
"@id": "https://www.variotdbs.pl/ref/type/"
}
},
"@id": "https://www.variotdbs.pl/vuln/VAR-200604-0324",
"affected_products": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/affected_products#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"model": "ios xr",
"scope": "eq",
"trust": 1.9,
"vendor": "cisco",
"version": "3.2.50"
},
{
"model": "ios xr",
"scope": "eq",
"trust": 1.9,
"vendor": "cisco",
"version": "3.2.4"
},
{
"model": "ios xr",
"scope": "eq",
"trust": 1.9,
"vendor": "cisco",
"version": "3.2.3"
},
{
"model": "ios xr",
"scope": "eq",
"trust": 1.9,
"vendor": "cisco",
"version": "3.2.2"
},
{
"model": "ios xr",
"scope": "eq",
"trust": 1.9,
"vendor": "cisco",
"version": "3.2.1"
},
{
"model": "ios xr",
"scope": "eq",
"trust": 1.9,
"vendor": "cisco",
"version": "3.2"
},
{
"model": "ios xr",
"scope": "eq",
"trust": 1.6,
"vendor": "cisco",
"version": "3.1.0"
},
{
"model": "ios xr",
"scope": "eq",
"trust": 1.6,
"vendor": "cisco",
"version": "3.0.1"
},
{
"model": "ios xr",
"scope": null,
"trust": 0.8,
"vendor": "cisco",
"version": null
},
{
"model": "ios xr for prp",
"scope": "eq",
"trust": 0.3,
"vendor": "cisco",
"version": "3.2.3"
},
{
"model": "ios xr for crs-1",
"scope": "eq",
"trust": 0.3,
"vendor": "cisco",
"version": "3.2.3"
},
{
"model": "ios xr",
"scope": "ne",
"trust": 0.3,
"vendor": "cisco",
"version": "3.3"
}
],
"sources": [
{
"db": "BID",
"id": "17607"
},
{
"db": "JVNDB",
"id": "JVNDB-2006-003955"
},
{
"db": "CNNVD",
"id": "CNNVD-200604-324"
},
{
"db": "NVD",
"id": "CVE-2006-1928"
}
]
},
"configurations": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/configurations#",
"children": {
"@container": "@list"
},
"cpe_match": {
"@container": "@list"
},
"data": {
"@container": "@list"
},
"nodes": {
"@container": "@list"
}
},
"data": [
{
"CVE_data_version": "4.0",
"nodes": [
{
"cpe_match": [
{
"cpe22Uri": "cpe:/o:cisco:ios_xr",
"vulnerable": true
}
],
"operator": "OR"
}
]
}
],
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2006-003955"
}
]
},
"credits": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/credits#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "Cisco Security bulletin",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-200604-324"
}
],
"trust": 0.6
},
"cve": "CVE-2006-1928",
"cvss": {
"@context": {
"cvssV2": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
},
"cvssV3": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
},
"severity": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/cvss/severity#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/severity"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"cvssV2": [
{
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"author": "nvd@nist.gov",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"exploitabilityScore": 10.0,
"id": "CVE-2006-1928",
"impactScore": 2.9,
"integrityImpact": "NONE",
"severity": "MEDIUM",
"trust": 1.8,
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
{
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"author": "VULHUB",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"exploitabilityScore": 10.0,
"id": "VHN-18036",
"impactScore": 2.9,
"integrityImpact": "NONE",
"severity": "MEDIUM",
"trust": 0.1,
"vectorString": "AV:N/AC:L/AU:N/C:N/I:N/A:P",
"version": "2.0"
}
],
"cvssV3": [],
"severity": [
{
"author": "nvd@nist.gov",
"id": "CVE-2006-1928",
"trust": 1.0,
"value": "MEDIUM"
},
{
"author": "NVD",
"id": "CVE-2006-1928",
"trust": 0.8,
"value": "Medium"
},
{
"author": "CNNVD",
"id": "CNNVD-200604-324",
"trust": 0.6,
"value": "MEDIUM"
},
{
"author": "VULHUB",
"id": "VHN-18036",
"trust": 0.1,
"value": "MEDIUM"
}
]
}
],
"sources": [
{
"db": "VULHUB",
"id": "VHN-18036"
},
{
"db": "JVNDB",
"id": "JVNDB-2006-003955"
},
{
"db": "CNNVD",
"id": "CNNVD-200604-324"
},
{
"db": "NVD",
"id": "CVE-2006-1928"
}
]
},
"description": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/description#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "Cisco IOS XR, when configured for Multi Protocol Label Switching (MPLS) and running on Cisco CRS-1 routers, allows remote attackers to cause a denial of service (Modular Services Cards (MSC) crash or \"MPLS packet handling problems\") via certain MPLS packets, as identified by Cisco bug IDs (1) CSCsd15970 and (2) CSCsd55531. Cisco IOS XR The denial of service (DoS) There is a vulnerability that can be exploited.Denial of service by third party (DoS) May be in a state. \nA successful attack results in a denial-of-service condition for traffic that is being switched on an affected Modular Services Card (MSC) or line card. \nA sustained denial-of-service condition can also arise from repeated attacks. Cisco IOS XR Software, a member of the Cisco IOS Software family, uses a microkernel-based distributed operating system infrastructure. Cisco IOS XR runs on Cisco CRS-1 and Cisco 12000 series routers. MPLS packets are forwarded through the MPLS network, so the packets that trigger this vulnerability can be sent from remote systems in the MPLS network. Such packets cannot be received on interfaces that are not configured with MPLS. \n\nSuccessful exploitation requires that MPLS has been configured on the\nnetwork device. \n\nSOLUTION:\nApply patches (see patch matrix in vendor advisory). \n\nPROVIDED AND/OR DISCOVERED BY:\nReported by the vendor. \n\nORIGINAL ADVISORY:\nCisco:\nhttp://www.cisco.com/warp/public/707/cisco-sa-20060419-xr.shtml\n\n----------------------------------------------------------------------\n\nAbout:\nThis Advisory was delivered by Secunia as a free service to help\neverybody keeping their systems up to date against the latest\nvulnerabilities. \n\nSubscribe:\nhttp://secunia.com/secunia_security_advisories/\n\nDefinitions: (Criticality, Where etc.)\nhttp://secunia.com/about_secunia_advisories/\n\n\nPlease Note:\nSecunia recommends that you verify all advisories you receive by\nclicking the link. \nSecunia NEVER sends attached files with advisories. \nSecunia does not advise people to install third party patches, only\nuse those supplied by the vendor. \n\n----------------------------------------------------------------------\n\nUnsubscribe: Secunia Security Advisories\nhttp://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org\n\n----------------------------------------------------------------------\n\n\n",
"sources": [
{
"db": "NVD",
"id": "CVE-2006-1928"
},
{
"db": "JVNDB",
"id": "JVNDB-2006-003955"
},
{
"db": "BID",
"id": "17607"
},
{
"db": "VULHUB",
"id": "VHN-18036"
},
{
"db": "PACKETSTORM",
"id": "45608"
}
],
"trust": 2.07
},
"external_ids": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/external_ids#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"db": "NVD",
"id": "CVE-2006-1928",
"trust": 2.5
},
{
"db": "BID",
"id": "17607",
"trust": 2.0
},
{
"db": "SECUNIA",
"id": "19740",
"trust": 1.8
},
{
"db": "OSVDB",
"id": "24811",
"trust": 1.7
},
{
"db": "SECTRACK",
"id": "1015964",
"trust": 1.7
},
{
"db": "VUPEN",
"id": "ADV-2006-1433",
"trust": 1.7
},
{
"db": "JVNDB",
"id": "JVNDB-2006-003955",
"trust": 0.8
},
{
"db": "CNNVD",
"id": "CNNVD-200604-324",
"trust": 0.7
},
{
"db": "XF",
"id": "25881",
"trust": 0.6
},
{
"db": "CISCO",
"id": "20060419 CISCO IOS XR MPLS VULNERABILITIES",
"trust": 0.6
},
{
"db": "VULHUB",
"id": "VHN-18036",
"trust": 0.1
},
{
"db": "PACKETSTORM",
"id": "45608",
"trust": 0.1
}
],
"sources": [
{
"db": "VULHUB",
"id": "VHN-18036"
},
{
"db": "BID",
"id": "17607"
},
{
"db": "JVNDB",
"id": "JVNDB-2006-003955"
},
{
"db": "PACKETSTORM",
"id": "45608"
},
{
"db": "CNNVD",
"id": "CNNVD-200604-324"
},
{
"db": "NVD",
"id": "CVE-2006-1928"
}
]
},
"id": "VAR-200604-0324",
"iot": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/iot#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": true,
"sources": [
{
"db": "VULHUB",
"id": "VHN-18036"
}
],
"trust": 0.01
},
"last_update_date": "2025-04-03T22:16:21.747000Z",
"problemtype_data": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"problemtype": "NVD-CWE-Other",
"trust": 1.0
}
],
"sources": [
{
"db": "NVD",
"id": "CVE-2006-1928"
}
]
},
"references": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/references#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"trust": 1.8,
"url": "http://www.cisco.com/warp/public/707/cisco-sa-20060419-xr.shtml"
},
{
"trust": 1.7,
"url": "http://www.securityfocus.com/bid/17607"
},
{
"trust": 1.7,
"url": "http://www.osvdb.org/24811"
},
{
"trust": 1.7,
"url": "http://securitytracker.com/id?1015964"
},
{
"trust": 1.7,
"url": "http://secunia.com/advisories/19740"
},
{
"trust": 1.1,
"url": "http://www.vupen.com/english/advisories/2006/1433"
},
{
"trust": 1.1,
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/25881"
},
{
"trust": 0.8,
"url": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2006-1928"
},
{
"trust": 0.8,
"url": "http://web.nvd.nist.gov/view/vuln/detail?vulnid=cve-2006-1928"
},
{
"trust": 0.6,
"url": "http://xforce.iss.net/xforce/xfdb/25881"
},
{
"trust": 0.6,
"url": "http://www.frsirt.com/english/advisories/2006/1433"
},
{
"trust": 0.3,
"url": "/archive/1/431359"
},
{
"trust": 0.1,
"url": "http://secunia.com/secunia_security_advisories/"
},
{
"trust": 0.1,
"url": "http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org"
},
{
"trust": 0.1,
"url": "http://secunia.com/product/4907/"
},
{
"trust": 0.1,
"url": "http://secunia.com/advisories/19740/"
},
{
"trust": 0.1,
"url": "http://secunia.com/about_secunia_advisories/"
}
],
"sources": [
{
"db": "VULHUB",
"id": "VHN-18036"
},
{
"db": "BID",
"id": "17607"
},
{
"db": "JVNDB",
"id": "JVNDB-2006-003955"
},
{
"db": "PACKETSTORM",
"id": "45608"
},
{
"db": "CNNVD",
"id": "CNNVD-200604-324"
},
{
"db": "NVD",
"id": "CVE-2006-1928"
}
]
},
"sources": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#",
"data": {
"@container": "@list"
}
},
"data": [
{
"db": "VULHUB",
"id": "VHN-18036"
},
{
"db": "BID",
"id": "17607"
},
{
"db": "JVNDB",
"id": "JVNDB-2006-003955"
},
{
"db": "PACKETSTORM",
"id": "45608"
},
{
"db": "CNNVD",
"id": "CNNVD-200604-324"
},
{
"db": "NVD",
"id": "CVE-2006-1928"
}
]
},
"sources_release_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2006-04-20T00:00:00",
"db": "VULHUB",
"id": "VHN-18036"
},
{
"date": "2006-04-19T00:00:00",
"db": "BID",
"id": "17607"
},
{
"date": "2014-03-11T00:00:00",
"db": "JVNDB",
"id": "JVNDB-2006-003955"
},
{
"date": "2006-04-25T22:06:23",
"db": "PACKETSTORM",
"id": "45608"
},
{
"date": "2006-04-20T00:00:00",
"db": "CNNVD",
"id": "CNNVD-200604-324"
},
{
"date": "2006-04-20T18:06:00",
"db": "NVD",
"id": "CVE-2006-1928"
}
]
},
"sources_update_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2017-07-20T00:00:00",
"db": "VULHUB",
"id": "VHN-18036"
},
{
"date": "2006-04-19T23:11:00",
"db": "BID",
"id": "17607"
},
{
"date": "2014-03-11T00:00:00",
"db": "JVNDB",
"id": "JVNDB-2006-003955"
},
{
"date": "2006-04-24T00:00:00",
"db": "CNNVD",
"id": "CNNVD-200604-324"
},
{
"date": "2025-04-03T01:03:51.193000",
"db": "NVD",
"id": "CVE-2006-1928"
}
]
},
"threat_type": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/threat_type#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "remote",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-200604-324"
}
],
"trust": 0.6
},
"title": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/title#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "Cisco IOS XR MPLS Denial of Service Vulnerability",
"sources": [
{
"db": "BID",
"id": "17607"
},
{
"db": "CNNVD",
"id": "CNNVD-200604-324"
}
],
"trust": 0.9
},
"type": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/type#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "lack of information",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-200604-324"
}
],
"trust": 0.6
}
}
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
Loading timeline…
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.