How severe is CVE-2016-9211?

CVE-2016-9211 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-9211 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-9211?

CVE-2016-9211 affects Cisco Ons 15454 Sdh Multiservice Platform Software. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-9211?

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-2016-9211 published?

CVE-2016-9211 was published on 2016-12-14 and last updated on 2026-06-17.

CVE-2016-9211

CVE-2016-9211 is a high-severity vulnerability in Cisco Ons 15454 Sdh Multiservice Platform Software with a CVSS 3.x 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Ons 15454 Sdh Multiservice Platform Software
Published: 2016-12-14
Last modified: 2026-06-17

Description

A vulnerability in TCP port management in Cisco ONS 15454 Series Multiservice Provisioning Platforms could allow an unauthenticated, remote attacker to cause the controller card to unexpectedly reload. More Information: CSCuw26032. Known Affected Releases: 10.51.

Frequently asked questions

What is CVE-2016-9211?: A vulnerability in TCP port management in Cisco ONS 15454 Series Multiservice Provisioning Platforms could allow an unauthenticated, remote attacker to cause the controller card to unexpectedly reload. More Information: CSCuw26032. Known Affected Releases: 10.51.
How severe is CVE-2016-9211?: CVE-2016-9211 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-9211 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-9211?: CVE-2016-9211 affects Cisco Ons 15454 Sdh Multiservice Platform Software. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-9211?: 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-2016-9211 published?: CVE-2016-9211 was published on 2016-12-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cisco:ons_15454_sdh_multiservice_platform_software:10.51.0:*:*:*:*:*:*:*

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