CVE-2015-0647

CVE-2015-0647 is a high-severity vulnerability in Cisco Ios with a CVSS 2.0 base score of 7.8. 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: High (CVSS 2.0 base score 7.8)
• EPSS exploit prediction: 2% (80th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-20
• Affected product: Cisco Ios
• Published: 2015-03-26
• Last modified: 2026-06-17

Description

Cisco IOS 12.2, 12.4, 15.0, 15.2, and 15.3 allows remote attackers to cause a denial of service (device reload) via malformed Common Industrial Protocol (CIP) UDP packets, aka Bug ID CSCum98371.

Frequently asked questions

What is CVE-2015-0647?

Cisco IOS 12.2, 12.4, 15.0, 15.2, and 15.3 allows remote attackers to cause a denial of service (device reload) via malformed Common Industrial Protocol (CIP) UDP packets, aka Bug ID CSCum98371.

How severe is CVE-2015-0647?

CVE-2015-0647 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2015-0647 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-0647?

CVE-2015-0647 primarily affects Cisco Ios. In total, 59 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-0647?

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-2015-0647 published?

CVE-2015-0647 was published on 2015-03-26 and last updated on 2026-06-17.

References

• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150325-cip

Affected products (59)

• cpe:2.3:o:cisco:ios:12.2\(33\)ird1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(33\)ire3:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(33\)sxi4b:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(44\)ex:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(44\)ex1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(44\)sq1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(46\)se:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(46\)se1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(46\)se2:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(50\)se:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(50\)se1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(50\)se2:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(50\)se3:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(50\)se4:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(50\)se5:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(52\)se:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(52\)se1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(55\)se:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(55\)se3:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(55\)se4:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(55\)se5:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(55\)se6:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(55\)se7:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(55\)se8:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(55\)se9:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.2\(58\)se2:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.4\(25e\)jam1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.4\(25e\)jap1m:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:12.4\(25e\)jaz1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:15.0\(1\)ey:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:15.0\(1\)ey1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:15.0\(1\)ey2:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:15.0\(2\)eb:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:15.0\(2\)ed1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:15.0\(2\)ey:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:15.0\(2\)ey1:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:15.0\(2\)ey2:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:15.0\(2\)ey3:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:15.0\(2\)se:*:*:*:*:*:*:*
• cpe:2.3:o:cisco:ios:15.0\(2\)se1:*:*:*:*:*:*:*

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