No exploitation reportedFix available

CVE-2022-31045

Q: Is CVE-2022-31045 actively exploited?

Active exploitation of CVE-2022-31045 has not been confirmed. Its EPSS score was 1.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-31045?

CVE-2022-31045 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2022-06-09
Fixed in1.14.1 · 1.13.5 · 1.12.18 · 1.12.8
WeaknessCWE-125

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2022-06-0921:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-31045?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-31045?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

OSV · NVD

Istio

Branch	Affected	Fixed in	Source
1.14	≥ 1.14.0, < 1.14.1	1.14.1	OSV
1.13	≥ 1.13.0, < 1.13.5	1.13.5	NVD · OSV
1.12	< 1.12.18	1.12.18	OSV
1.12	< 1.12.8	1.12.8	NVD
1.14	= 1.14.0	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Istio to 1.14.1 · 1.13.5 · 1.12.18 · 1.12.8

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2025-04-23
OpenCVESSVC decisionnone—
CNACVSS 3.17read 2026-10-23
NVDCVSS 3.19.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
CNAweakness (CWE)CWE-125read 2026-10-23
FIRST EPSSEPSS score1.2 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2022-06-09
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-31045?

Is CVE-2022-31045 actively exploited?

Active exploitation of CVE-2022-31045 has not been confirmed. Its EPSS score was 1.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-31045?

CVE-2022-31045 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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