How severe is CVE-2014-3396?

CVE-2014-3396 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2014-3396 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3396?

CVE-2014-3396 primarily affects Cisco Ios Xr. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-3396?

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-2014-3396 published?

CVE-2014-3396 was published on 2014-10-05 and last updated on 2026-06-17.

CVE-2014-3396

CVE-2014-3396 is a high-severity vulnerability in Cisco Ios Xr with a CVSS 2.0 base score of 7.5. 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-264.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Cisco Ios Xr
Published: 2014-10-05
Last modified: 2026-06-17

Description

Cisco IOS XR on ASR 9000 devices does not properly use compression for port-range and address-range encoding, which allows remote attackers to bypass intended Typhoon line-card ACL restrictions via transit traffic, aka Bug ID CSCup30133.

Frequently asked questions

What is CVE-2014-3396?: Cisco IOS XR on ASR 9000 devices does not properly use compression for port-range and address-range encoding, which allows remote attackers to bypass intended Typhoon line-card ACL restrictions via transit traffic, aka Bug ID CSCup30133.
How severe is CVE-2014-3396?: CVE-2014-3396 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2014-3396 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-3396?: CVE-2014-3396 primarily affects Cisco Ios Xr. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-3396?: 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-2014-3396 published?: CVE-2014-3396 was published on 2014-10-05 and last updated on 2026-06-17.

References

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3396

Affected products (8)

cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_9000_rsp440_router:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_9001:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_9006:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_9912:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:asr_9922:-:*:*:*:*:*:*:*

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