CVE-2016-6415
Cisco IOS, IOS XR, and IOS XE IKEv1 Information Disclosure Vulnerability
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run IOS, IOS XR, and IOS XE, fix it now.
CISA required action: Apply updates per vendor instructions.
US federal civilian agencies must remediate by Jun 9, 2023.
Patch status
No official fix confirmed yet
Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.
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.
Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.
Affected products
| Product | Vendor | Affected versions | Fixed in | Source |
|---|---|---|---|---|
| Cisco networking & security | Cisco | <= 3.18s | — | NVD |
| IOS | Cisco | >= 12.2, <= 12.4; >= 15.0, <= 15.6 | — | NVD |
| IOS, IOS XR, and IOS XE | Cisco | — | — | KEV |
| IOS XR | Cisco | >= 4.3.0, <= 4.3.4; >= 5.0.0, < 5.3.0 | 5.3.0 | NVD |
Sources: NVD = NIST National Vulnerability Database; KEV = CISA Known Exploited Vulnerabilities catalog.
Intelligence timeline
Developments from the last 30 days, newest first.
- CVSS scoredUpdateKEV
CVE-2016-6415 scored CVSS 7.5: Cisco IOS, IOS XR, and IOS XE, Cisco IOS, IOS XR, and IOS XE IKEv1 Information Disclosure Vulnerability
CISA lists this as exploited in the wild. Unpatched IOS, IOS XR, and IOS XE systems are exposed to active attacks now.
Basis: NIST National Vulnerability Database
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Coverage
We have not published a story about this vulnerability yet.