Clusters using Calico (version 3.14.0 and below), Calico Enterprise (version 2.8.2 and below), may be vulnerable to information disclosure if IPv6 is enabled but unused. A compromised pod with sufficient privilege is able to reconfigure the node’s IPv6 interface due to the node accepting route advertisement by default, allowing the attacker to redirect full or partial network traffic from the node to the compromised pod.
CVE-2020-13597
This medium-severity CVE scores 6.0 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 56% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.0
- EG Score
- 6.0(medium)
- EPSS
- 55.7%
- KEV
- Not listed
Published
June 3, 2020
Last Modified
November 21, 2024
References (6)
- psirt@tigerahttps://github.com/kubernetes/kubernetes/issues/91507
- psirt@tigerahttps://groups.google.com/forum/#%21topic/kubernetes-security-announce/BMb_6ICCfp8
- psirt@tigerahttps://www.projectcalico.org/security-bulletins/
- af854a3a-2127-422b-91ae-364da2661108https://github.com/kubernetes/kubernetes/issues/91507
- af854a3a-2127-422b-91ae-364da2661108https://groups.google.com/forum/#%21topic/kubernetes-security-announce/BMb_6ICCfp8
- af854a3a-2127-422b-91ae-364da2661108https://www.projectcalico.org/security-bulletins/
Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/projectcalico/calico | — | 3.8.9 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-18 10:02 UTCEPSS rescore
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- 2026-05-27 03:05 UTCEG score recompute
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- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-25 05:37 UTCOSV refresh
Related CVEs(same CWE)
Same CWE
10 shownCWE-200
Frequently asked(5)
What is CVE-2020-13597?
When was CVE-2020-13597 disclosed?
Is CVE-2020-13597 actively exploited?
What is the CVSS score of CVE-2020-13597?
How do I remediate CVE-2020-13597?
Dependency Blast Radius
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