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CVE-2016-1366

23
FAUCET Score

CVE-2016-1366 describes a denial-of-service vulnerability affecting Cisco IOS XR versions 5.0.0 through 5.2.5 on Network Convergence System 6000 devices. The flaw stems from weak permissions in the SCP and SFTP modules, allowing remote authenticated users to overwrite system files. Rated 6.5 (Medium) on CVSS, this vulnerability has a low attack complexity and requires user authentication, but can lead to a complete denial of service. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
5.0.0CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xr:5.0.0:*:*:*:*:*:*:*
5.0.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xr:5.0.1:*:*:*:*:*:*:*
5.2.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xr:5.2.1:*:*:*:*:*:*:*
5.2.3CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xr:5.2.3:*:*:*:*:*:*:*
5.2.4CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xr:5.2.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.38%
Probability of exploitation in next 30 days
EPSS Percentile
69.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0138 is in the 83rd percentile among its peer group of 21,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20160323-ncs
Vendor Advisory
securitytracker.com / id/1035407