How severe is CVE-2015-0618?

CVE-2015-0618 has a CVSS 2.0 base score of 7.1, rated high severity.

Is CVE-2015-0618 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-0618?

CVE-2015-0618 primarily affects Cisco Ios Xr. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-0618?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2015-0618 published?

CVE-2015-0618 was published on 2015-02-21 and last updated on 2026-06-17.

CVE-2015-0618

CVE-2015-0618 is a high-severity vulnerability in Cisco Ios Xr with a CVSS 2.0 base score of 7.1. 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-19.

Key facts

Severity: High (CVSS 2.0 base score 7.1)
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-19
Affected product: Cisco Ios Xr
Published: 2015-02-21
Last modified: 2026-06-17

Description

Cisco IOS XR 5.0.1 and 5.2.1 on Network Convergence System (NCS) 6000 devices and 5.1.3 and 5.1.4 on Carrier Routing System X (CRS-X) devices allows remote attackers to cause a denial of service (line-card reload) via malformed IPv6 packets with extension headers, aka Bug ID CSCuq95241.

Frequently asked questions

What is CVE-2015-0618?: Cisco IOS XR 5.0.1 and 5.2.1 on Network Convergence System (NCS) 6000 devices and 5.1.3 and 5.1.4 on Carrier Routing System X (CRS-X) devices allows remote attackers to cause a denial of service (line-card reload) via malformed IPv6 packets with extension headers, aka Bug ID CSCuq95241.
How severe is CVE-2015-0618?: CVE-2015-0618 has a CVSS 2.0 base score of 7.1, rated high severity.
Is CVE-2015-0618 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-0618?: CVE-2015-0618 primarily affects Cisco Ios Xr. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-0618?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-0618 published?: CVE-2015-0618 was published on 2015-02-21 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:o:cisco:ios_xr:5.0.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:5.2.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:carrier_routing_system:5.1.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:carrier_routing_system:5.1.4:*:*:*:*:*:*:*

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