CVE-2009-1168
Status: ModifiedHigh (7.1)—
Cisco IOS 12.0(32)S12 through 12.0(32)S13 and 12.0(33)S3 through 12.0(33)S4, 12.0(32)SY8 through 12.0(32)SY9, 12.2(33)SXI1, 12.2XNC before 12.2(33)XNC2, 12.2XND before 12.2(33)XND1, and 12.4(24)T1; and IOS XE 2.3 through 2.3.1t and 2.4 through 2.4.0; when RFC4893 BGP routing is enabled, allows remote attackers to cause a denial of service (memory corruption and device reload) by using an RFC4271 peer to send an update with a long series of AS numbers, aka Bug ID CSCsy86021.
CVSS
- Version: 2.0
- Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C
- Base score: 7.1
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 2.45%
- Percentile among all scored CVEs: 84
- Score date: 10/8/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (2)
CWEs
- CWE-399
References
- http://secunia.com/advisories/36046
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080aea4c9.shtml
- http://www.securityfocus.com/bid/35862
- http://www.securitytracker.com/id?1022619
- http://www.vupen.com/english/advisories/2009/2082
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6697
- http://secunia.com/advisories/36046
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080aea4c9.shtml
- http://www.securityfocus.com/bid/35862
- http://www.securitytracker.com/id?1022619
- http://www.vupen.com/english/advisories/2009/2082
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6697
Raw JSON (NVD)
Show
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"cveTags": [],
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"vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "MEDIUM",
"availabilityImpact": "COMPLETE",
"confidentialityImpact": "NONE"
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"published": "2009-07-30T18:30:00.203",
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"description": [
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"value": "Cisco IOS 12.0(32)S12 through 12.0(32)S13 and 12.0(33)S3 through 12.0(33)S4, 12.0(32)SY8 through 12.0(32)SY9, 12.2(33)SXI1, 12.2XNC before 12.2(33)XNC2, 12.2XND before 12.2(33)XND1, and 12.4(24)T1; and IOS XE 2.3 through 2.3.1t and 2.4 through 2.4.0; when RFC4893 BGP routing is enabled, allows remote attackers to cause a denial of service (memory corruption and device reload) by using an RFC4271 peer to send an update with a long series of AS numbers, aka Bug ID CSCsy86021."
},
{
"lang": "es",
"value": "Cisco IOS v12.0(32)S12 hasta v12.0(32)S13 y v12.0(33)S3 hasta v12.0(33)S4, v12.0(32)SY8 hasta v12.0(32)SY9, v12.2(33)SXI1, v12.2XNC anterior a v12.2(33)XNC2, v12.2XND anterior a v12.2(33)XND1, y v12.4(24)T1; y IOS XE v2.3 hasta v2.3.1t y v2.4 hasta v2.4.0; cuando el enrutado RFC4893 BGP está habilitado, lo que permite a los atacantes remotos causar una denegación de servicio (corrupción de memoria o reinicio del dispositivo) usando un par RFC4271 para enviar una actualización con una serie larga de números AS, también conocido como fallo ID CSCsy86021."
}
],
"lastModified": "2026-06-16T23:06:38.860",
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