How severe is CVE-2014-9720?

CVE-2014-9720 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2014-9720 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-9720?

CVE-2014-9720 affects Tornadoweb Tornado. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2014-9720?

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

When was CVE-2014-9720 published?

CVE-2014-9720 was published on 2020-01-24 and last updated on 2026-06-17.

CVE-2014-9720

CVE-2014-9720 is a medium-severity vulnerability in Tornadoweb Tornado with a CVSS 3.x base score of 6.5. 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-203.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 2% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Tornadoweb Tornado
Published: 2020-01-24
Last modified: 2026-06-17

Description

Tornado before 3.2.2 sends arbitrary responses that contain a fixed CSRF token and may be sent with HTTP compression, which makes it easier for remote attackers to conduct a BREACH attack and determine this token via a series of crafted requests.

Frequently asked questions

What is CVE-2014-9720?: Tornado before 3.2.2 sends arbitrary responses that contain a fixed CSRF token and may be sent with HTTP compression, which makes it easier for remote attackers to conduct a BREACH attack and determine this token via a series of crafted requests.
How severe is CVE-2014-9720?: CVE-2014-9720 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2014-9720 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-9720?: CVE-2014-9720 affects Tornadoweb Tornado. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2014-9720?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-9720 published?: CVE-2014-9720 was published on 2020-01-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tornadoweb:tornado:*:*:*:*:*:*:*:*

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