Is CVE-2023-28370 in the CISA KEV catalog?

No. CVE-2023-28370 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-28370?

CVE-2023-28370 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2023-28370?

CVE-2023-28370 has an EPSS score of 1.13% (63th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-28370?

Upgrade python-tornado on debian 11 to 6.1.0-1+deb11u1 or later. Fixes are available for 11 affected products.

CVE & CISA-KEV Catalog

CVE-2023-28370

MEDIUM

6.1

CVSS v3

NVD

Description

Open redirect vulnerability in Tornado versions 6.3.1 and earlier allows a remote unauthenticated attacker to redirect a user to an arbitrary web site and conduct a phishing attack by having user access a specially crafted URL.

CWE-601Open Redirect

How to fix

Remediation Available

python-tornadoDebian

Fixed in:6.1.0-1+deb11u1CVE-2023-28370

Fixed in:6.2.0-3+deb12u1CVE-2023-28370

Fixed in:6.3.2-1CVE-2023-28370

python-tornadoRocky

Fixed in:0:6.1.0-9.el9RHSA-2023:6523

python-tornadoRed Hat / RHEL

Fixed in:0:6.1.0-9.el9RHSA-2023:6523

python-tornado-debugsourceRed Hat / RHEL

Fixed in:0:6.1.0-9.el9RHSA-2023:6523

python-tornado-debugsourceRocky

Fixed in:0:6.1.0-9.el9RHSA-2023:6523

python3-tornadoRocky

Fixed in:0:6.1.0-9.el9RHSA-2023:6523

python3-tornadoRed Hat / RHEL

Fixed in:0:6.1.0-9.el9RHSA-2023:6523

python3-tornado-debuginfoRocky

Fixed in:0:6.1.0-9.el9RHSA-2023:6523

python3-tornado-debuginfoRed Hat / RHEL

Fixed in:0:6.1.0-9.el9RHSA-2023:6523

python-tornadoUbuntu

Fixed in:4.2.1-1ubuntu3.1+esm1USN-6159-1

Fixed in:4.5.3-1ubuntu0.2+esm1USN-7150-1

Fixed in:6.0.3+really5.1.1-3ubuntu0.1~esm1USN-7150-1

Fixed in:6.1.0-3ubuntu0.1~esm1USN-7150-1

Fixed in:6.2.0-3ubuntu0.1USN-6159-1

Fixed in:6.4.0-1ubuntu0.1USN-7150-1

python3-tornadoUbuntu

Fixed in:4.2.1-1ubuntu3.1+esm1USN-6159-1

Fixed in:4.5.3-1ubuntu0.2+esm1USN-7150-1

Fixed in:6.0.3+really5.1.1-3ubuntu0.1~esm1USN-7150-1

Fixed in:6.1.0-3ubuntu0.1~esm1USN-7150-1

Fixed in:6.2.0-3ubuntu0.1USN-6159-1

Fixed in:6.4.0-1ubuntu0.1USN-7150-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploit Intelligence

1.13%probability of exploitation in 30 days

63rdpercentile

Moderate risk: more likely to be exploited than 63% of all known CVEs.

References

Third-Party Advisory1

jvn.jp

Product1

github.com

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-601 (Open Redirect) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-4123	High	7.6	98%	-	Fix
CVE-2018-11784	Medium	4.3	94%	-	Fix
CVE-2021-22881	Medium	6.1	87%	-	Fix
CVE-2022-45402	Medium	6.1	82%	-	Fix
CVE-2017-1000117	High	8.8	78%	-	Fix
CVE-2019-10098	Medium	6.1	74%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.