CVE-2009-2868
Status: ModifiedHigh (7.8)—
Severity7.8High · CVSS 2.0
Exploitation probability1.73 %higher than 77% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found
Unspecified vulnerability in Cisco IOS 12.2 through 12.4, when certificate-based authentication is enabled for IKE, allows remote attackers to cause a denial of service (Phase 1 SA exhaustion) via crafted requests, aka Bug IDs CSCsy07555 and CSCee72997.
CVSS
- Base score
- 7.8
- Version
- 2.0
- Vector
- AV:N/AC:L/Au:N/C:N/I:N/A:C
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days
- 1.73 %
- Percentile among all scored CVEs
- 77
- Score date
- 10/22/2026
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 (1)
CWEs
- NVD-CWE-noinfo
References
Show 6 references
- http://tools.cisco.com/security/center/viewAlert.x?alertId=18887
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8117.shtml
- http://www.vupen.com/english/advisories/2009/2759
- http://tools.cisco.com/security/center/viewAlert.x?alertId=18887
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8117.shtml
- http://www.vupen.com/english/advisories/2009/2759
Raw JSON (NVD)
Show
{
"id": "CVE-2009-2868",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 7.8,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "COMPLETE",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 6.9,
"baseSeverity": "HIGH",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
"affected": [
{
"source": "psirt@cisco.com",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2009-09-28T19:30:01.437",
"references": [
{
"url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=18887",
"tags": [
"Vendor Advisory"
],
"source": "psirt@cisco.com"
},
{
"url": "http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8117.shtml",
"tags": [
"Vendor Advisory"
],
"source": "psirt@cisco.com"
},
{
"url": "http://www.vupen.com/english/advisories/2009/2759",
"source": "psirt@cisco.com"
},
{
"url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=18887",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8117.shtml",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.vupen.com/english/advisories/2009/2759",
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Unspecified vulnerability in Cisco IOS 12.2 through 12.4, when certificate-based authentication is enabled for IKE, allows remote attackers to cause a denial of service (Phase 1 SA exhaustion) via crafted requests, aka Bug IDs CSCsy07555 and CSCee72997."
},
{
"lang": "es",
"value": "Vulnerabilidad sin especificar en Cisco IOS v12.2 hasta la v12.4. Cuando la autenticación basada en certificado está activada, permite a usuarios remotos provocar una denegación de servicio (agotamiento de Phase 1 SA) a través de peticiones modificadas. También conocido como aka Bug IDs CSCsy07555 and CSCee72997."
}
],
"lastModified": "2026-06-16T23:10:23.627",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:cisco:ios:12.2ex:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0912492E-565A-4559-ABB8-D2898F06CF29"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2ira:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2424530B-2353-48F2-A076-0C44AAA4C89E"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2irb:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7B88D71E-C9CB-44D7-AB06-49CFF1117DA4"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2irc:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "113CC627-7381-49DF-B384-CC70FB795EFF"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2sb:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "ADBDC6C0-961B-441D-8C34-AACE0902057E"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2sca:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "140C7C99-1B50-431C-B55C-DFF308E7ECF4"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2scb:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "65213862-01D0-4B1D-8C76-B19D083BF460"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2se:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F05A548B-C443-4C15-B636-64C1F9B9860D"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2sra:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A892B3F0-5A31-4086-8AB5-F06E68588EFC"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2srb:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D8E6BB50-7C0C-4E31-8DB0-40E145C8D9CF"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2src:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8A0DA930-86CE-4D17-BD41-9C4E47D8088F"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2srd:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8B1AE2B1-BFED-49A3-94EB-E40A1A675BC1"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2sxh:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A7CCDB53-4F8B-4B90-9929-4E94CF414CDA"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2sxi:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C03B0702-070F-48D5-9CBC-DB36D409A4EF"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2xna:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DAD441B8-CC3C-4571-B095-C70B78BE80E9"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2xnb:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "17AA0C3D-7C96-4D2E-91E5-232536245ABF"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2xnc:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5D57ACB3-4ADC-4FBE-BA46-395F277B9997"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2xnd:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E2916FA5-1FFF-48FB-A079-693AD3444CC1"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3t:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C0C3B413-76F7-413B-A51F-29834F9DE722"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3xl:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "68FC4904-1F4D-4E10-AF95-911B07827598"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3xr:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E0A5760A-9FFE-4941-B2BD-7DD54B1E1B37"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3xs:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "98FE195E-084B-4F4C-800D-850165DED48C"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3xx:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A1976E53-85A6-494F-B8AC-847E7988850C"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3ya:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "320C5597-68BE-4899-9EBB-9B4DEE8EA7DB"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3yd:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "520304A4-EB15-42A8-A402-8251A4D2076D"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3yf:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C46B66D6-1BF1-4DCA-868F-BADE3CB96063"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3yg:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CA88C064-898F-4C0D-A266-D7B3509C28A2"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3yh:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "139B1182-61A3-4F3D-9E29-758F27917646"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3yi:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0CC3706F-B00A-405E-917E-7FD5217E0501"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3yq:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CD6DF12B-2A20-4AC5-8EC5-729008D87736"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3ys:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6BF9D6B6-E51F-44FF-97E5-15E0C4E9C3D7"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3yt:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A25C42FA-37F4-4B7F-AFCA-D7F081F58CF4"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3yu:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B0AB8F07-AF43-4202-9908-F9A1DF6FFC03"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3yx:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2958873B-A0AB-4EAF-A5CF-8423739FAB07"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.3yz:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1938D118-C07F-4BEC-8030-947F099BFCB8"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9D4D8C72-E7BB-40BF-9AE5-622794D63E09"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.4t:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BEAD7398-D1B2-47FB-952D-8C3162D5A363"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.4xb:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C1797E4E-E15C-4148-9B3D-4FF6D1D815AF"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.4xc:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "544BD924-2CBD-4130-BBD3-5AD084C85FE5"
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.4xd:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6B78181E-E1D1-4C25-85DE-CA46BBF21765"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "psirt@cisco.com"
}