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CVE-2016-6415

The server IKEv1 implementation in Cisco IOS 12.2 through 12.4 and 15.0 through 15.6, IOS XE through 3.18S, IOS XR 4.3.x and 5.0.x through…

High7.5Known exploitedEPSS 87.7%
Published
Updated
Reserved
Assigned by
cisco

Description

The server IKEv1 implementation in Cisco IOS 12.2 through 12.4 and 15.0 through 15.6, IOS XE through 3.18S, IOS XR 4.3.x and 5.0.x through 5.2.x, and PIX before 7.0 allows remote attackers to obtain sensitive information from device memory via a Security Association (SA) negotiation request, aka Bug IDs CSCvb29204 and CSCvb36055 or BENIGNCERTAIN.

Exploited in the wild

CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Cisco IOS, IOS XR, and IOS XE IKEv1 Information Disclosure Vulnerability.

Added
19 May 2023
Fix due (US federal)
9 Jun 2023
Used by ransomware
Not known

Apply updates per vendor instructions.

Scores

CVSS scores of CVE-2016-6415, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVDNVD · Analyzed3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS (exploitation in 30 days)
87.7% · top 0.2% of all CVEs (2 Nov 2026)
CISA SSVC
Exploitation: active · Automatable: yes · Technical impact: partial

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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • n/a

    • affected n/a

References (4)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .