How severe is CVE-2016-1459?

CVE-2016-1459 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-1459 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1459?

CVE-2016-1459 primarily affects Cisco Ios. In total, 45 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-1459?

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

When was CVE-2016-1459 published?

CVE-2016-1459 was published on 2016-07-17 and last updated on 2026-06-17.

CVE-2016-1459

CVE-2016-1459 is a medium-severity vulnerability in Cisco Ios with a CVSS 3.x base score of 5.3. 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-399.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.9
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Cisco Ios
Published: 2016-07-17
Last modified: 2026-06-17

Description

Cisco IOS 12.4 and 15.0 through 15.5 and IOS XE 3.13 through 3.17 allow remote authenticated users to cause a denial of service (device reload) via crafted attributes in a BGP message, aka Bug ID CSCuz21061.

Frequently asked questions

What is CVE-2016-1459?: Cisco IOS 12.4 and 15.0 through 15.5 and IOS XE 3.13 through 3.17 allow remote authenticated users to cause a denial of service (device reload) via crafted attributes in a BGP message, aka Bug ID CSCuz21061.
How severe is CVE-2016-1459?: CVE-2016-1459 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-1459 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1459?: CVE-2016-1459 primarily affects Cisco Ios. In total, 45 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-1459?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-1459 published?: CVE-2016-1459 was published on 2016-07-17 and last updated on 2026-06-17.

References

Affected products (45)

cpe:2.3:o:cisco:ios:12.4\(4\)xc7:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(15\)t17:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(19a\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(22\)yb2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)gc4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)gc5:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.0\(1\)ex:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.0\(1\)m:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.0\(1\)m9:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.0\(1\)m10:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.0\(1\)s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.0\(1\)sy:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.0\(2\)sg:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.1\(3\)t4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.1\(4\)gc2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.1\(4\)m10:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(3\)t4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(4\)gc3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(4\)m10:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(2\)t4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)m:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)m7:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.4\(2\)t4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.4\(3\)m5:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(2\)t3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)m3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.13.2s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.13.3s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.13.4s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.13.5s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.14.0s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.14.1s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.14.2s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.14.3s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.14.4s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.15.1cs:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.15.2s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.15.3s:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.0cs:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.16.1as:*:*:*:*:*:*:*

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