How severe is CVE-2013-6981?

CVE-2013-6981 has a CVSS 2.0 base score of 5.4, rated medium severity.

Is CVE-2013-6981 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-6981?

CVE-2013-6981 primarily affects Cisco Ios Xe. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-6981?

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

When was CVE-2013-6981 published?

CVE-2013-6981 was published on 2013-12-28 and last updated on 2026-06-17.

CVE-2013-6981

CVE-2013-6981 is a medium-severity vulnerability in Cisco Ios Xe with a CVSS 2.0 base score of 5.4. 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 5.4)
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Ios Xe
Published: 2013-12-28
Last modified: 2026-06-17

Description

Cisco IOS XE 3.7S(.1) and earlier allows remote attackers to cause a denial of service (Packet Processor crash) via fragmented MPLS IP packets, aka Bug ID CSCul00709.

Frequently asked questions

What is CVE-2013-6981?: Cisco IOS XE 3.7S(.1) and earlier allows remote attackers to cause a denial of service (Packet Processor crash) via fragmented MPLS IP packets, aka Bug ID CSCul00709.
How severe is CVE-2013-6981?: CVE-2013-6981 has a CVSS 2.0 base score of 5.4, rated medium severity.
Is CVE-2013-6981 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-6981?: CVE-2013-6981 primarily affects Cisco Ios Xe. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-6981?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-6981 published?: CVE-2013-6981 was published on 2013-12-28 and last updated on 2026-06-17.

References

Affected products (29)

cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.5\(.0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.6\(.0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.6\(.1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:2.6\(.2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.1s\(.0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.1s\(.1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.1s\(.2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.1s\(.3\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.2s\(.0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.2s\(.1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.2s\(.2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.3s\(.0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.3s\(.1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.3s\(.2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.4s\(.0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.4s\(.1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.4s\(.2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.4s\(.3\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.4s\(.4\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.4s\(.5\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.4s\(.6\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.5s\(.0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.5s\(.1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.5s\(.2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6s\(.0\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6s\(.1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6s\(.2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.7s\(.0\):*:*:*:*:*:*:*

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