How severe is CVE-2015-0771?

CVE-2015-0771 has a CVSS 2.0 base score of 6.3, rated medium severity.

Is CVE-2015-0771 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-0771?

CVE-2015-0771 primarily affects Cisco Ios. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-0771?

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

When was CVE-2015-0771 published?

CVE-2015-0771 was published on 2015-06-12 and last updated on 2026-06-17.

CVE-2015-0771

CVE-2015-0771 is a medium-severity vulnerability in Cisco Ios with a CVSS 2.0 base score of 6.3. 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 2.0 base score 6.3)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Cisco Ios
Published: 2015-06-12
Last modified: 2026-06-17

Description

The IKE implementation in the WS-IPSEC-3 service module in Cisco IOS 12.2 on Catalyst 6500 devices allows remote authenticated users to cause a denial of service (device reload) by sending a crafted message during IPsec tunnel setup, aka Bug ID CSCur70505.

Frequently asked questions

What is CVE-2015-0771?: The IKE implementation in the WS-IPSEC-3 service module in Cisco IOS 12.2 on Catalyst 6500 devices allows remote authenticated users to cause a denial of service (device reload) by sending a crafted message during IPsec tunnel setup, aka Bug ID CSCur70505.
How severe is CVE-2015-0771?: CVE-2015-0771 has a CVSS 2.0 base score of 6.3, rated medium severity.
Is CVE-2015-0771 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-0771?: CVE-2015-0771 primarily affects Cisco Ios. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-0771?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-0771 published?: CVE-2015-0771 was published on 2015-06-12 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:cisco:ios:12.2\(33\)sxj8:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2sxj:*:*:*:*:*:*:*

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