CVE & CISA-KEV Catalog

CVE-2019-12855

HIGHEPSS 76th pctl
7.4
CVSS v3
NVD

Description

In words.protocols.jabber.xmlstream in Twisted through 19.2.1, XMPP support did not verify certificates when used with TLS, allowing an attacker to MITM connections.

CWE-295Improper Certificate Validation

How to fix

Remediation Available
twistedDebian
Fixed in:18.9.0-7CVE-2019-12855
Fixed in:18.9.0-7CVE-2019-12855
Fixed in:18.9.0-7CVE-2019-12855
Fixed in:18.9.0-7CVE-2019-12855
python-twistedUbuntu
Fixed in:13.2.0-1ubuntu1.2+esm1USN-4308-2
Fixed in:16.0.0-1ubuntu0.4USN-4308-1
Fixed in:17.9.0-2ubuntu0.1USN-4308-1
python-twisted-binUbuntu
Fixed in:13.2.0-1ubuntu1.2+esm1USN-4308-2
Fixed in:16.0.0-1ubuntu0.4USN-4308-1
Fixed in:17.9.0-2ubuntu0.1USN-4308-1
python-twisted-webUbuntu
Fixed in:13.2.0-1ubuntu1.2+esm1USN-4308-2
Fixed in:16.0.0-1ubuntu0.4USN-4308-1
Fixed in:17.9.0-2ubuntu0.1USN-4308-1
python3-twistedUbuntu
Fixed in:16.0.0-1ubuntu0.4USN-4308-1
Fixed in:17.9.0-2ubuntu0.1USN-4308-1
python3-twisted-binUbuntu
Fixed in:17.9.0-2ubuntu0.1USN-4308-1
twistedUbuntu
Fixed in:13.2.0-1ubuntu1.2+esm1USN-4308-2
Fixed in:16.0.0-1ubuntu0.4USN-4308-1
Fixed in:17.9.0-2ubuntu0.1USN-4308-1

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 ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityNone

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploit Intelligence

1.82%probability of exploitation in 30 days
76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-295 (Improper Certificate Validation) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2015-4000Low3.7100%-Fix
CVE-2020-0601High8.189%KEVFix
CVE-2009-3555Critical9.887%-Fix
CVE-2022-26923High8.883%KEVFix
CVE-2023-27823Critical9.853%--
CVE-2022-42979High8.824%--
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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 2024-11-25.