CVE-2022-31045

Name: CVE-2022-31045
Creator: NVD / NIST
Published: 2022-06-09T21:15:07.847+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.02%

Last modified Jun 17, 2026

CVE-2022-31045 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Istio is an open platform to connect, manage, and secure microservices. In affected versions ill-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing. EPSS estimates a 1.02% chance of exploitation in the next 30 days.

Description

Istio is an open platform to connect, manage, and secure microservices. In affected versions ill-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing. Users are most likely at risk if they have an Istio ingress Gateway exposed to external traffic. This vulnerability has been resolved in versions 1.12.8, 1.13.5, and 1.14.1. Users are advised to upgrade. There are no known workarounds for this issue.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.02%

59.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Istio	Istio	< 1.12.8
Istio	Istio	>= 1.13.0, < 1.13.5
Istio	Istio	1.14.0

References

https://github.com/istio/istio/security/advisories/GHSA-xwx5-5c9g-x68xThird Party Advisory
https://istio.io/latest/news/security/istio-security-2022-05Broken Link
https://github.com/istio/istio/security/advisories/GHSA-xwx5-5c9g-x68xThird Party Advisory
https://istio.io/latest/news/security/istio-security-2022-05Broken Link

Timeline

Published: Jun 9, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-31045?

How severe is CVE-2022-31045?

CVE-2022-31045 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.02% probability of exploitation in the next 30 days.

How do I fix CVE-2022-31045?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-31045?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST