How severe is CVE-2015-6334?

CVE-2015-6334 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2015-6334 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6334?

CVE-2015-6334 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-2015-6334?

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

When was CVE-2015-6334 published?

CVE-2015-6334 was published on 2015-10-16 and last updated on 2026-06-17.

CVE-2015-6334

CVE-2015-6334 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% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Asr 5000 Software
Published: 2015-10-16
Last modified: 2026-06-17

Description

Cisco ASR 5000 and 5500 devices with software 18.0.0.57828 and 19.0.M0.61045 allow remote attackers to cause a denial of service (vpnmgr process restart) via a crafted header in a TACACS packet, aka Bug ID CSCuw01984.

Frequently asked questions

What is CVE-2015-6334?: Cisco ASR 5000 and 5500 devices with software 18.0.0.57828 and 19.0.M0.61045 allow remote attackers to cause a denial of service (vpnmgr process restart) via a crafted header in a TACACS packet, aka Bug ID CSCuw01984.
How severe is CVE-2015-6334?: CVE-2015-6334 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2015-6334 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6334?: CVE-2015-6334 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-2015-6334?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6334 published?: CVE-2015-6334 was published on 2015-10-16 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:cisco:asr_5000_software:18.0.0.57828:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asr_5000_software:19.0.m0.61045:*:*:*:*:*:*:*

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