CVE-2016-6415

mediumpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.877 · 100 %ileexploit · functionalEUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 3 exploits · functional

Likely / severe?

87.7% (100th) EPSS

CVSS 5 · medium

Is it mine?

6 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

added 2023-05-19remediate by 2023-06-09

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-27

Cisco IOS, IOS XR, and IOS XE IKEv1 Information Disclosure Vulnerability

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondaryexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USprimary

exploits (3)

Public proof-of-concept and weaponised exploit code.

auxiliary/scanner/ike/cisco_ike_benigncertainCisco IKE Information Disclosurefunctional · metasploit
EDB-43383Cisco IOS 12.2 < 12.4 / 15.0 < 15.6 - Security Association Negotiation Request Device MemoryPoC · exploit_db
3ndG4me/CVE-2016-6415-BenignCertain-MonitorRe-implementation of VirtueSecurity's benigncertain-monitorPoC · poc_in_github

affected products (6)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
cisco ios12.2 → 12.4nvdUScpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cisco ios15.0 → 15.6nvdUScpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cisco ios xe≤ 3.18snvdUScpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
cisco ios xr4.3.0 → 4.3.4nvdUScpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
cisco ios xr5.0.0 → 5.3.0nvdUScpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2016-09-19modified 2026-06-17

related (19,397)

Related entries.

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+19392 more

references (10)

External citations — patches, advisories, analysis.

scry

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