How severe is CVE-2015-0688?

CVE-2015-0688 has a CVSS 2.0 base score of 7.1, rated high severity.

Is CVE-2015-0688 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-0688?

CVE-2015-0688 affects Cisco Ios Xe. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-0688?

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-2015-0688 published?

CVE-2015-0688 was published on 2015-04-04 and last updated on 2026-06-17.

CVE-2015-0688

CVE-2015-0688 is a high-severity vulnerability in Cisco Ios Xe with a CVSS 2.0 base score of 7.1. 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: High (CVSS 2.0 base score 7.1)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Cisco Ios Xe
Published: 2015-04-04
Last modified: 2026-06-17

Description

Cisco IOS XE 3.10.2S on an ASR 1000 device with an Embedded Services Processor (ESP) module, when NAT is enabled, allows remote attackers to cause a denial of service (module crash) via malformed H.323 packets, aka Bug ID CSCup21070.

Frequently asked questions

What is CVE-2015-0688?: Cisco IOS XE 3.10.2S on an ASR 1000 device with an Embedded Services Processor (ESP) module, when NAT is enabled, allows remote attackers to cause a denial of service (module crash) via malformed H.323 packets, aka Bug ID CSCup21070.
How severe is CVE-2015-0688?: CVE-2015-0688 has a CVSS 2.0 base score of 7.1, rated high severity.
Is CVE-2015-0688 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-0688?: CVE-2015-0688 affects Cisco Ios Xe. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-0688?: 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-2015-0688 published?: CVE-2015-0688 was published on 2015-04-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:cisco:ios_xe:13.10.2s:*:*:*:*:*:*:*

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