How severe is CVE-2016-1366?

CVE-2016-1366 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2016-1366 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1366?

CVE-2016-1366 primarily affects Cisco Ios Xr. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-1366?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2016-1366 published?

CVE-2016-1366 was published on 2016-03-24 and last updated on 2026-06-17.

CVE-2016-1366

CVE-2016-1366 is a medium-severity vulnerability in Cisco Ios Xr with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.8
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Cisco Ios Xr
Published: 2016-03-24
Last modified: 2026-06-17

Description

The SCP and SFTP modules in Cisco IOS XR 5.0.0 through 5.2.5 on Network Convergence System 6000 devices use weak permissions for system files, which allows remote authenticated users to cause a denial of service (overwrite) via unspecified vectors, aka Bug ID CSCuw75848.

Frequently asked questions

What is CVE-2016-1366?: The SCP and SFTP modules in Cisco IOS XR 5.0.0 through 5.2.5 on Network Convergence System 6000 devices use weak permissions for system files, which allows remote authenticated users to cause a denial of service (overwrite) via unspecified vectors, aka Bug ID CSCuw75848.
How severe is CVE-2016-1366?: CVE-2016-1366 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2016-1366 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1366?: CVE-2016-1366 primarily affects Cisco Ios Xr. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-1366?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-1366 published?: CVE-2016-1366 was published on 2016-03-24 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:o:cisco:ios_xr:5.0.0:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:5.0.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:5.2.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:5.2.3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:5.2.4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:5.2.5:*:*:*:*:*:*:*

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