How severe is CVE-2015-6256?

CVE-2015-6256 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2015-6256 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6256?

CVE-2015-6256 affects Cisco Asr 5000 Series Software. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-6256?

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

When was CVE-2015-6256 published?

CVE-2015-6256 was published on 2015-08-22 and last updated on 2026-06-17.

CVE-2015-6256

CVE-2015-6256 is a medium-severity vulnerability in Cisco Asr 5000 Series Software with a CVSS 2.0 base score of 5.0. 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-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Asr 5000 Series Software
Published: 2015-08-22
Last modified: 2026-06-17

Description

Cisco ASR 5000 devices with software 19.0.M0.60828 allow remote attackers to cause a denial of service (OSPF process restart) via crafted length fields in headers of OSPF packets, aka Bug ID CSCuv62820.

Frequently asked questions

What is CVE-2015-6256?: Cisco ASR 5000 devices with software 19.0.M0.60828 allow remote attackers to cause a denial of service (OSPF process restart) via crafted length fields in headers of OSPF packets, aka Bug ID CSCuv62820.
How severe is CVE-2015-6256?: CVE-2015-6256 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2015-6256 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6256?: CVE-2015-6256 affects Cisco Asr 5000 Series Software. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-6256?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6256 published?: CVE-2015-6256 was published on 2015-08-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cisco:asr_5000_series_software:19.0.m0.60828:*:*:*:*:*:*:*

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