How severe is CVE-2015-4285?

CVE-2015-4285 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2015-4285 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-2015-4285?

CVE-2015-4285 primarily affects Cisco Ios Xr. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-4285?

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

When was CVE-2015-4285 published?

CVE-2015-4285 was published on 2015-07-23 and last updated on 2026-06-17.

CVE-2015-4285

CVE-2015-4285 is a medium-severity vulnerability in Cisco Ios Xr 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-399.

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-399
Affected product: Cisco Ios Xr
Published: 2015-07-23
Last modified: 2026-06-17

Description

The Local Packet Transport Services (LPTS) implementation in Cisco IOS XR 5.1.2, 5.1.3, 5.2.1, and 5.2.2 on ASR9k devices makes incorrect decisions about the opening of TCP and UDP ports during the processing of flow base entries, which allows remote attackers to cause a denial of service (resource consumption) by sending traffic to these ports continuously, aka Bug ID CSCur88273.

Frequently asked questions

What is CVE-2015-4285?: The Local Packet Transport Services (LPTS) implementation in Cisco IOS XR 5.1.2, 5.1.3, 5.2.1, and 5.2.2 on ASR9k devices makes incorrect decisions about the opening of TCP and UDP ports during the processing of flow base entries, which allows remote attackers to cause a denial of service (resource consumption) by sending traffic to these ports continuously, aka Bug ID CSCur88273.
How severe is CVE-2015-4285?: CVE-2015-4285 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2015-4285 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-2015-4285?: CVE-2015-4285 primarily affects Cisco Ios Xr. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-4285?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-4285 published?: CVE-2015-4285 was published on 2015-07-23 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:o:cisco:ios_xr:5.1.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:5.1.3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:5.2.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:5.2.2:*:*:*:*:*:*:*

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