How severe is CVE-2015-6351?

CVE-2015-6351 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2015-6351 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6351?

CVE-2015-6351 primarily affects Cisco Asr 5000 Software. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-6351?

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

When was CVE-2015-6351 published?

CVE-2015-6351 was published on 2015-10-30 and last updated on 2026-06-17.

CVE-2015-6351

CVE-2015-6351 is a medium-severity vulnerability in Cisco Asr 5000 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: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Asr 5000 Software
Published: 2015-10-30
Last modified: 2026-06-17

Description

Cisco ASR 5500 System Architecture Evolution (SAE) Gateway devices with software 19.1.0.61559 and 19.2.0 allow remote attackers to cause a denial of service (BGP process restart) via a crafted header in a BGP packet, aka Bug ID CSCuw65781.

Frequently asked questions

What is CVE-2015-6351?: Cisco ASR 5500 System Architecture Evolution (SAE) Gateway devices with software 19.1.0.61559 and 19.2.0 allow remote attackers to cause a denial of service (BGP process restart) via a crafted header in a BGP packet, aka Bug ID CSCuw65781.
How severe is CVE-2015-6351?: CVE-2015-6351 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2015-6351 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6351?: CVE-2015-6351 primarily affects Cisco Asr 5000 Software. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6351?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6351 published?: CVE-2015-6351 was published on 2015-10-30 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:cisco:asr_5000_software:19.1.0.61559:*:*:*:*:*:*:*
cpe:2.3:a:cisco:asr_5000_software:19.2.0:*:*:*:*:*:*:*

More vulnerabilities in Cisco Asr 5000 Software

CVE-2017-6729 — High (CVSS 7.5): A vulnerability in the Border Gateway Protocol (BGP) processing functionality of the Cisco StarOS operating system for…
CVE-2016-6455 — High (CVSS 7.5): A vulnerability in the Slowpath of StarOS for Cisco ASR 5500 Series routers with Data Processing Card 2 (DPC2) could…
CVE-2016-1436 — High (CVSS 7.5): The General Packet Radio Switching Tunneling Protocol 1 (aka GTPv1) implementation on Cisco ASR 5000 Packet Data…
CVE-2017-6773 — Medium (CVSS 6.7): A vulnerability in the CLI of Cisco ASR 5000 Series Aggregated Services Routers running the Cisco StarOS operating…
CVE-2016-1452 — Medium (CVSS 6.5): Cisco ASR 5000 devices with software 18.3 through 20.0.0 allow remote attackers to make configuration changes over SNMP…
CVE-2017-6775 — Medium (CVSS 5.7): A vulnerability in the CLI of Cisco ASR 5000 Series Aggregated Services Routers running the Cisco StarOS operating…

All CVEs affecting Cisco Asr 5000 Software →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →